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Hey guys, I'm satisfied with almost every aspect of the prophet, except battery time...
I mean in suspend the battery is great. But what if you want to do any real work on the prophet? This is what I get:
Screen off, Wifi on (useful for skype, IMs etc.)
3.45 hrs from full charge
Screen on, all else off (word processing, games etc.)
3.50 hrs from full charge
Screen on, Wifi on (email, internet)
3.40 hrs from full charge
Now tell me if this is not too little?
This is off course with normal battery.
You could set your screen to the lowest brightness that you can use also set the wifi to its lowest power setting these 2 functiions are the biggest users of power in my view
Radio ON, Wifi OFF, Screen backlight at level 2 or 3 (when outside). Some data connections, few Wifi cnx too (then turned OFF), 1 or 2 syncs using Bluetooth and my SPV M600 battery runs about 5Hrs according to my "upmeter" ( free at http://ae.inc.ru )
You can buy on Ebay a 1800mah bat. (50% more power than the original bat.)
just curious,
do u have phm traylaunch enabled ?
mine sux the juice out of my prophet whenever I enabled the traylaunch..
Is that 1800 mAh battery with extended thickness? if not it might be worth it.
I dont use phm tray launcher. But wifi and display are on quite frequently.
farbird said:
just curious,
do u have phm traylaunch enabled ?
mine sux the juice out of my prophet whenever I enabled the traylaunch..
Click to expand...
Click to collapse
I do have PHM TrayLaunch installed but did not notice faster battery drain. Is this something you just experienced or did anyone else comment about this problem?
Battery is way shorter in the Prophet than in any other device i've had before. Same usage of course.
I could live with this limit, but can not stand with some other wm5 imposse on us, such as max size on contact notes field, or the inability to sync via BT.
Am I the only one missing my trusted JAM?
I am not sure its shorter than in other devices of similar features, but I do know for me its not enough. I think the Jam would actually be way shorter with Xscale over omap processor. So no, i would not say you've made the wrong choice.
Not sure what you mean about no synching over BT? It should work fine!
BTW, anyone know about this 1800mAh battery on ebay that apparently does not increase thickness?
try this:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=9720781998
krale said:
I am not sure its shorter than in other devices of similar features, but I do know for me its not enough. I think the Jam would actually be way shorter with Xscale over omap processor. So no, i would not say you've made the wrong choice.
Not sure what you mean about no synching over BT? It should work fine!
BTW, anyone know about this 1800mAh battery on ebay that apparently does not increase thickness?
Click to expand...
Click to collapse
Thanks for your comment.
IMHO battery life IS shorter, as a matter of fact. I know about the OMAP, but it takes two of them, so.....
BT syncing simply does not work. Maybe it's a matter of XP-WM5 combination, but fact is that my prophet "does not find a PC with the active Sync service" Any help on that?
I've been able to get TomTom 5 to work, pair with several headsets and handsfree devices, but no way around the Active Sync issue, no matter what the COM ports or tricks I've tried. I even changed BT drivers from Widcomm to MS in my notebook, same result.
I haven't read about the large capacity battery, but if this is going to be "oversized" or make it heavier, I'd rather would take an extra USB cable around the office or my notebook.
krale said:
I am not sure its shorter than in other devices of similar features, but I do know for me its not enough. I think the Jam would actually be way shorter with Xscale over omap processor. So no, i would not say you've made the wrong choice.
Not sure what you mean about no synching over BT? It should work fine!
BTW, anyone know about this 1800mAh battery on ebay that apparently does not increase thickness?
Click to expand...
Click to collapse
Thanks for your comment.
IMHO battery life IS shorter, as a matter of fact. I know about the OMAP, but it takes two of them, so.....
BT syncing simply does not work. Maybe it's a matter of XP-WM5 combination, but fact is that my prophet "does not find a PC with the active Sync service" Any help on that?
I've been able to get TomTom 5 to work, pair with several headsets and handsfree devices, but no way around the Active Sync issue, no matter what the COM ports or tricks I've tried. I even changed BT drivers from Widcomm to MS in my notebook, same result.
I haven't read about the large capacity battery, but if this is going to be "oversized" or make it heavier, I rather would take an extra USB cable around the office or my notebook.
Well just to let the curious know, I received the 1800 mah battery, the one also priced on ebay, with NO thickness increase, and I cannot believe it...
It just keeps going and going and going. I did the same tests as above, and could not get it to run out.
Wifi on (all else off) lasted for about five hours and was still arround 68%
Screen on all else off lasted for about 6 hours from an 85% charge and it was still on 39%...
I mean I know the math 1800 is 50% more than 1200, but I seem to be getting A LOT more than 50%. Any explanations?
Sync via Bluetooth is perfectly working for me.
You have to create a BlueTooth Com Port from your PC. Just follow instructions in ActiveSync Help File.
I can listen to mp3 for more than 4hours with screen off... and with a BlueTooth Headset... Maybe it's draining less power coz it just sends the signal and doesn't have to use external speakers...
hum... the 1800mh battery seems great... is it really good quality ?
I will keep you posted as I keep testing it in the next few days, but so far I'm impressed.
The maker is the same as the original battery (DynaPack) so quality is the same.
The battery is shorter because the phone is always registering on the GSM network.
It has some kind of bug in it.
You can check this by going to Settings > Phone > Network and check that the current network is sometimes flashing "home service" instead of the name of the operator.
rjtd said:
The battery is shorter because the phone is always registering on the GSM network.
It has some kind of bug in it.
You can check this by going to Settings > Phone > Network and check that the current network is sometimes flashing "home service" instead of the name of the operator.
Click to expand...
Click to collapse
As in manual not automatic.
CookieKid said:
As in manual not automatic.
Click to expand...
Click to collapse
Manual or automatic, it gives the same "****".
http://www.youtube.com/watch?v=UKO1xaY1z7Q
http://cgi.ebay.co.uk/ws/eBayISAPI....092516258&fromMakeTrack=true#ebayphotohosting
anyone seen 2500mah ? I'm trying to find out if it bigger.
2500mah? seems kinda fake to me if it is the same size and thickness as a 1200mah or 1800mah battery.
The 1800mah extended battery is possible because they removed the hard plastic cover on top of the battery so they can fit a slight bigger capacity battery.
these 1800mah batteries (says not dynopack on ad, just chinese copy!) are they much heavier, i have just ordered one, bit concerned they may actually be lithium ion (not lithium polymer)
Am I the only one who finds it apalling?
Today my battery was on red warning by 1 o'clock.
I have 'unlimited' (FUP 1Gb) data and was just doing things - the hone can do so much - but my battery only lasts hours - not the full day I need
Love my Ameo - hate the keyboard (compared to the Universal) and the battery life!
Confucious said:
Am I the only one who finds it apalling?
Today my battery was on red warning by 1 o'clock.
I have 'unlimited' (FUP 1Gb) data and was just doing things - the hone can do so much - but my battery only lasts hours - not the full day I need
Love my Ameo - hate the keyboard (compared to the Universal) and the battery life!
Click to expand...
Click to collapse
I have never gotten near exhausting the battery before I am exhausted -- that is 12-15 hour work days. The only time I got close was when I did several presentations using TV-out and forgot my AC power adapter. Right now my battery stands at 60%; it's nearly 7:00p local time and my day started at 4:30a. Didn't do much other than e-mail and phone, but still I have been really pleased with battery life.
As to the keybd, based on what some posted, I was thinking I might go sans keyboard using a soft keyboard like tengo or resco keyboard. In fact the keyboard hasn't bothered me at all. It nicely springs into place when I open the case and types at an OK level.
My biggest complaints are actually the lack of buttons for quick launch... along with the little joystick thingy, which I don't particularly love. The D-Pad on my Wizard seemed more usable. In these two respects my Wizard was easier to navigate. Otherwise, I'm loving the Advantage.
Me too, but ...
I have found mixed results. Some days the battery seems to nosedive and some days when I am expecting trouble its not too bad.
I believe bluetooth really drains the battery. Also when the unit is connected via activesync even though I am using a 'mains powered' dual USB synch cable it hardly seems to charge at all.
However when connected via activesync I use "Screenoff" and this helps a lot.
re keyboard - nothing to be said I just carry the device with me and use TenGO as an SIPS.
HOWEVER while reporting a bug to TenGO (very good people btw) I powered up my old Universal and remembered the old screen size and memory for installed programs - Advantage I love you after all!
Am I the only one who loves the joystick or what? Id take it any day over the D-Pads, dpads are well and good but I find the joystick alot more usable.
As for battery life ive found the biggest drain (as would be expected) is the brightness of the LCD screen. Using default settings the battery life was quite solid (2 days at least, with moderate useage and a fair bit of HSDPA'ing), however to compensate for the poor screen protector that came with it which I applied, I ratcheted up the brightness and sure enough have had to charge it every night since. Which is no big deal for me, but on a day when I have to use VGA out and BT I can see it struggling to make a full day on the highest brightness settings.
TenGo works quite well and the screen is large enough to use VGA SIPs with your finger even, but I still dont mind the hardware keyboard just takes a lil getting use too.
Using any data connection uses a bit more battery than a GSM phone conversation. So if we get 5-6 hours of GSM, then we should get about 4-5 hours of 3G and GPRS/Edge data usage.
However, I have seen that turning down the brightness to 3 steps above the lowest setting yields me a good 6 hours of Edge use. This setting works well indoors or in lower sun light conditions only.
My biggest issue with the device is that it reflects everything. The glare is horrible in high light conditions, almost making it unusable while outside on the street.
Using bluetooth isn't so bad. I've seen it might drain 10% of your battery over a period of 24 hours with no usage except keeping it on.
So, no, I don't find any strange battery patterns with my U1000, at least not yet.
I have push mail enabled so the 3g connection is always on and working. I often have bluetooth on. I still usually get pretty much a full working day without coming close to the battery dying.
However, I do keep the screen on the lowest backlight setting (i.e. one stop away from the end of the scale) and the screen turns itself off after 2 mins.
Try this while charging...
Ive found that when i charge up my Ameo using the USB adaptor to get it to actually charge I:
Turn off bluetooth
Turn off GPRS / 3G data connection
Then i activate WM5torage
This means activesync doesnt try to load up and keep the screen on. I then put the device into standby so the screen isnt on and I managed to get it to charge up to 80% throughout the day.
Otherwise even with bluetooth on and the internet permanently connected i found the battery life to be very good (altho yesterday i could of sworn i charged it up overnight, got to work, played about with the new google maps application, GPS came on, etc, etc, downloaded a few maps, then battery life said 10%! Cant of charged it up the night before. Gonna keep my eye on this)
can I suggest big power users get this
http://www.clove.co.uk/viewProduct....Category=CE3E87A6-CAEF-4504-B115-1B3AA016C2E5
U20 5400mAh external battery/charger. about the size of an ipod and comes with connections to charge device.
Mine does the trick, lives in my bag and is 2.5 times our battery life=3.5 overall.
Should even extend confucious to 5pm.......
I might end up having to get one of those external chargers - but it's yet another thing to carry! Most of the time I can charge it overnight or at the office.
I think it's using the screen that is the problem - I have BT on all the time for my headset and 3G for my push email from my server but it's when I'm I'm browsing the internet / using google maps / using TomTom that drains the battery.
TomTom drains the battery faster than my car charger charges it :|
there are so many things you can do with Athena that it seams a shame not to do them all lol - especially as I've just found the FUP on W'n'W Pro is 3Gb not 1
Confucious said:
ITomTom drains the battery faster than my car charger charges it :|
Click to expand...
Click to collapse
That's weird - check the ampage of your car charger.
apd said:
That's weird - check the ampage of your car charger.
Click to expand...
Click to collapse
It was a cheap one that has worked with ll my other PDAs and SmartPhones but i have ordered the powered Brodit holder now so I'll wait to see if that's better.
Confucious said:
It was a cheap one that has worked with ll my other PDAs and SmartPhones but i have ordered the powered Brodit holder now so I'll wait to see if that's better.
Click to expand...
Click to collapse
I ahve being using a Brodit one for a few weeks (albeit that it was the one from my Exec - I have only just received my Ameo Brodit holder) and it charged the battery no problem, even when using full brightness and internal GPS
My normal car charger charged my Universal OK - but fails with my Athena.
Today I didn't do a lot with my phone - listened to music on the way in with my BT headset, a few texts, push email running. Got it out at lunchtime and battery was dead - it was on red warning but turned itself off - I've been in meetings all mormning so haven't been able to charge the phone.
Something is wrong!
Could it be that the screen isn't turning itself off - I've noticed in the standard case it soesn't always when the keyboard isn't completely closed to the screen - but I am on default settings and the screen should turn itself off after a couple of mins inactivity anyway. Could WMP or something be keeping the screen lit?
Something is killing my battery anyone got any ideas?
I'm wondering if instead of the screen you have an app running in the background that doesn't go to sleep and continously taxes your CPU... could even be WMP... check with a taskmgr program to see what you have running or use another app to check your CPU load.
I haven't heard of the screen not dimming outside of Nav software, but saw plenty of misbehaving apps...
Battery saving while playing music
I have found "screenoff" an excellent help with this both for locking the screen (I now almost always leave the keyboard and case at home ) and for battery saving.
I'm beginning to think its that little screen which is soaking up the power.
Confucious said:
TomTom drains the battery faster than my car charger charges it :|
Click to expand...
Click to collapse
Mine too, until...
I had an unbranded mini-USB car charger. When using TomTom, the effect was a net drain on battery power.
Today (and partly as a result of this thread), I tried the branded HTC charger that I had lying around (and that I thought would make no difference). Interestingly, I now have a net gain. (Started at 80%, drove around for an hour, charge is now 90%.)
Seems that all car chargers are not the same.
(Also the HTC charger has a natty, blue lit, logo; much better than the red LED.)
For your charging issues check out :
http://www.pocketpctechs.com/main~u...AE+cable+accessories~item~LSP%2DDUOADPT01.htm
It drastically improves the charging. I bought one then bought them for everywhere.
CPA said:
can I suggest big power users get this
http://www.easydevices.co.uk/pp/HTC...HTC_ADVANTAGE_EXTERNAL_EMERGENCY_CHARGER.html
U20 5400mAh external battery/charger. about the size of an ipod and comes with connections to charge device.
Mine does the trick, lives in my bag and is 2.5 times our battery life=3.5 overall.
Should even extend confucious to 5pm.......
Click to expand...
Click to collapse
I'm looking at this one (am spending some time in our captial city next weekend) to extend the time between charges needed. Does this device resolve the 'pin out' problem and keep the phone charged? Has anyone else got testimonials about this? Its a not insignificant £40 so I don't want to bother if it doesn't solve the charge problem mentioned here and elsewhere with the differing pin outs. TIA
hammermedia said:
For your charging issues check out :
http://www.pocketpctechs.com/main~u...AE+cable+accessories~item~LSP%2DDUOADPT01.htm
It drastically improves the charging. I bought one then bought them for everywhere.
Click to expand...
Click to collapse
I'm looking at their product but I am confused. they specify that the advantage uses an 11 pin plug to charge when it appears to be a 5 pin USB mini-b connector. I don't know where they get the 11 pin connection from. also they SPECIFY that these adaptors can only be used with their Sync & charge retractable cable (thus implying that they are different from a std USB to mini-b 5 pin cable) this may be the case as I have tried charging my Blueant Z9 BT headset using a generic USB to micro (or mini-b 4 pin) and I get an overcurrent error on my USB port. It appears that the Blueant supplied cable is different.
Any Ideas on the HTC 11 pin cinnector referenced at http://www.pocketpctechs.com/images/items/LSP-DUOPRO01.jpg ?
Joe
Are you on the right page for HTC Advantage?
http://www.pocketpctechs.com/main~u...dvantage+Lil%27+Sync%AE+Cable+Accessories.htm
Hey guys,
First of, YES I USED THE SEARCH FUNCTION .
My battery life is absolute horrid right now, and I tried everything.
I tried out different roms, every radio, deleting programs, hard resetting tons of times. I even bought a new 1500 mAh battery but it was still crap.
Battery log says my device in standby mode with the screen turned of uses -70ma, when I turn my screen up it jumps to -320ma, and when idle on the screen for a few sec it goes to -200 ma, but when I browse through stuff again it goes to 3xxma again. When I surf on the internet it picks up to 450-500ma.
Now, this morning with the 1500 mAh battery fully charged I played a few games of XTRAKT, few texts, 1 hour of music listening and 10 minutes of being on Opera through a HSDPA connection. It was down to 45%.
This isn't the normal rate the battery goes down at right?
I use HDtweak to manage my connection and put it off after a minute so it isn't that I keep dataconnections open. I never use bluetooth or wifi either.
Could it possibly be that it's the charger of the device? I perhaps have the feeling that it doesn't put enough juice into the battery even though the green light led goes on to indicate it's full.
Some feedback would be much appreciated cause it's put me on the edge of selling my device, which would be a shame cause I'm really fond of it (except the battery ofcourse ).
Thanks in advance!
/a
P.s. I am from a pda background, so it isn't that I'm expecting too much of the device or comparing it to a normal cell.
May I ask what you searched, as there are 3 or 4 active threads on battery drain right now?
Hi
Had same problem.
Try to browse a storage card if its very slow You must format it and it will back to normal.
very strange but its working.
Cheers
AndyCr15 said:
May I ask what you searched, as there are 3 or 4 active threads on battery drain right now?
Click to expand...
Click to collapse
General battery drain yes, not the possible issue of a charger though. If I'm wrong I stand corrected. .
Hi
Had same problem.
Try to browse a storage card if its very slow You must format it and it will back to normal.
very strange but its working.
Cheers
Click to expand...
Click to collapse
I'll try this, I have noticed that today my storage card won't be read by my computer, so perhaps this is a fix for the lousy battery issue.
antrak said:
Hey guys,
First of, YES I USED THE SEARCH FUNCTION .
My battery life is absolute horrid right now, and I tried everything.
I tried out different roms, every radio, deleting programs, hard resetting tons of times. I even bought a new 1500 mAh battery but it was still crap.
Battery log says my device in standby mode with the screen turned of uses -70ma, when I turn my screen up it jumps to -320ma, and when idle on the screen for a few sec it goes to -200 ma, but when I browse through stuff again it goes to 3xxma again. When I surf on the internet it picks up to 450-500ma.
Now, this morning with the 1500 mAh battery fully charged I played a few games of XTRAKT, few texts, 1 hour of music listening and 10 minutes of being on Opera through a HSDPA connection. It was down to 45%.
This isn't the normal rate the battery goes down at right?
I use HDtweak to manage my connection and put it off after a minute so it isn't that I keep dataconnections open. I never use bluetooth or wifi either.
Could it possibly be that it's the charger of the device? I perhaps have the feeling that it doesn't put enough juice into the battery even though the green light led goes on to indicate it's full.
Some feedback would be much appreciated cause it's put me on the edge of selling my device, which would be a shame cause I'm really fond of it (except the battery ofcourse ).
Thanks in advance!
/a
P.s. I am from a pda background, so it isn't that I'm expecting too much of the device or comparing it to a normal cell.
Click to expand...
Click to collapse
Hi Antrak,
Touch HD has the longest battery life of any similar 'phone. See e.g.
http://www.pcauthority.com.au/News/1...-the-rest.aspx.
Either your battery is not charging correctly, as you say (try it via the PC USB cord?), or you have two dud batteries in a row (very unlikely) or you have a bug in your m/board. 70mA in standby is too high. It should be <20mA with only the 'phone on in standby mode, providing you are not moving from one cell to another all the time, and have decent signal.
One other suggestion. Drain the battery completely to zero, then recharge it to max. This should reset the internal battery meter. But don't do this too often, as it ages the battery faster.
If none of these work, return the 'phone for a m/board replacement undere guarantee.
I have the same problem... After charging for 10 hours, my batt shows 55% only.. and last 1hr on STANDbY!!!
IMAGINE! charge for 10hrs juz to get to use for 1 hr.. im disappointed by the batt.. im not sure if HTC is gona let me exchange with a new one or do I have to buy a new batt..
try check your sync..its active all the time or not..
if yes..
find the threat to make a fake account for sync, so you can active it manually.
so your battery will stand more longer,
about charging..
me also facing the same problem..
need to change it more longer to get full battery,
but
if i change in my car,
no issue
very fast
i thing charger issue..
but i bought original set..
??????????????????
Okay I've charged my HD through my pc with a USB cable and formatted my SD card like a other user said. Gonna see how it holds out today. It could very well be that some chargers have issues.
My experience with the Touch HD says that when charged with a USB attached to a computer the battery life is a lot shorter than charged through a wall socket.
jouh said:
My experience with the Touch HD says that when charged with a USB attached to a computer the battery life is a lot shorter than charged through a wall socket.
Click to expand...
Click to collapse
This is always going to be the case. Quickest way to charge your device will always be through your wall socket and with your device turned off!!
Same battery issue.
i recently purchased a new touch HD (T8285 telstra version) and am experiencing the same horrible battery issues. it takes more time to charge it, than i get use out of it.
i've tried multiple batteries, and am in the process of trying different ROMs.
antrak: any update on that last post? did the SD format help?
Fallen Spartan said:
This is always going to be the case. Quickest way to charge your device will always be through your wall socket and with your device turned off!!
Click to expand...
Click to collapse
Indeed, here's an illustration...
Image1:
Charging via USB takes longer. Consumption and therefore charge current is erratic after the battery level reaches 50% when charging via USB on my HD. So the battery fills up to about 60% of its capacity by the time when the battery level is reported to be 100% and charging stops.
Image2:
When charging with an AC adapter this is not happening and the capacity is fully utilized. This is also quicker.
Fallen Spartan said:
This is always going to be the case. Quickest way to charge your device will always be through your wall socket and with your device turned off!!
Click to expand...
Click to collapse
That's strange. For me it's quicker if the device is turned on. When it's off it takes around 8-10 hours to charge but when it's on it's alot quicker.
trice1921 said:
That's strange. For me it's quicker if the device is turned on. When it's off it takes around 8-10 hours to charge but when it's on it's alot quicker.
Click to expand...
Click to collapse
hmmm, I don't know how this is possible?
If your device is on there is always power outage especially with programmes running, whilst if your device is off, there is no power drainage so device should charge quicker.
What rom are you using? software installed?
Fallen Spartan said:
hmmm, I don't know how this is possible?
If your device is on there is always power outage especially with programmes running, whilst if your device is off, there is no power drainage so device should charge quicker.
What rom are you using? software installed?
Click to expand...
Click to collapse
Latest official rom with alot of software installed. But it doens't make sence to me either. It's logical for something to charge faster when it's using no power (off) then when it is using power (on).
Combine battery threads ???
Hi to Moderators,
There are now several threads on the HD forum on battery and charging issues.
Can these be combined into one place and stickied, so we can get a clear picture?
Current threads are this one, plus:
http://forum.xda-developers.com/showthread.php?t=474531
http://forum.xda-developers.com/showthread.php?t=506658
http://forum.xda-developers.com/showthread.php?t=480618
I have a gut feeling from what I'm reading, that HTC have had a bad batch of batteries or charger circuits in the HD - in which case the best starting point is to call their service points and ask for help/replacement, instead of spending lots of time on other remedies. The symptoms described have lots of commonalities, and the HD is normally an excellent beastie for battery usage.
Thanks for all your help, ladies and gents! Your work is much appreciated.
nerdcore said:
i recently purchased a new touch HD (T8285 telstra version) and am experiencing the same horrible battery issues. it takes more time to charge it, than i get use out of it.
i've tried multiple batteries, and am in the process of trying different ROMs.
antrak: any update on that last post? did the SD format help?
Click to expand...
Click to collapse
Heya,
Don't know what it is but my battery life increased a tad. Am running Dutty's X3.0 with the 1.32.x.x. radio. Watching a 1 hour xvid dvd rip (no conversion) in coreplayer on full backlight with no HSDPA on, wifi or bluetooth takes away 20% of my battery, which is acceptable.
Don't think it's the SD card format though, it might be that I never have the activesync process on anymore by setting it to manual update and closing it (it otherwise keeps running.)
/a
I'm really frustrated because i really used to love the n7 so much I was an early adopter and bought another one after I dropped my first and then went on to buy my girlfriend one. But after being plagued with this issue and stuck on 4.1 its just not the same anymore since I cant flash custom roms all day :/
I've been having a charging issue with android 4.2.1 since it came out (both stock and all the roms I tried) but I noticed that whenever I reverted to 4.1.2 the issue went away completely. So I've been waiting for 4.2.2 to come out for a while now to see if it fixed the issue and after flashing the update tonight it seems to have the same problem.
I've tried searching for months now and haven't found any answers.
So this is the issue with both 4.2.1 and 4.2.2:
The battery charges at an insanely slow pace to the point that it ruins the tablet completely. I'll plug it in over night for 8+ hours and it will not gain more then 40% battery life in that time.
Its to the point that when I was just using it right now on the charger with brightness turned all the way down and nothing on other then sync and WiFi that light web browsing for 10 mins caused it to discharge a percent after being plugged in for 19 minutes.
Notes:
Its a c70 16gb
I tried 3 different stock N7 chargers with stock cables as well as trying them with other cables.
I'm not plugged into any kind of extension cords and I've tried multiple wall sockets at different locations.
My girlfriends nexus 7 32g charges fine on 4.2.1 and I have not updated her to 4.2.2 to test yet.
I haven't checked the battery connection because like I said whenever I revert to stock 4.1.2 or any 4.1.2 rom it charges in 4 hours flat or 6 hours with heavy usage while charging.
So anyone have any ideas? If not I guess I have to rma.
Do both, yours and your girlfriend's devices take that long to charge?
sl4y3r88 said:
Do both, yours and your girlfriend's devices take that long to charge?
Click to expand...
Click to collapse
Nope her nexus 7 charges fine. ( a little slower on 4.2 then 4.1 but nothing like mine)
Her nexus does have issues with turning on sometimes on 4.2.1 like a lot of other users but its nothing holding the power button for 10 seconds doesn't fix.
It also just noticed it seems to discharge at an extremely fast pace. (still on 4.2.2)
It just dropped from 55% to 51% in the time I've typed these responses with brightness all the way down.
So anyone want to try and help me figure this out before I send it in friday? I called it in to Google play device support to try and report the software bug and they said its the first they heard of it and they would pass it on but I felt like the rep didnt want to help as I bought it from a third party. I'm willing to do any tests suggested and hop between software versions to try and figure out this bug.
Why do you think it is a "software bug" when millions of people running the "same software" don't experience the same behavior?
I realize that software can exhibit data-dependent behaviors, and thus exhibit low occurrence rates... but there is no "software" involved in charging the battery.
Do you think a booted Linux kernel is needed to charge a battery? How would the battery get charged when the device is turned off in that case? C'mon!
Send it back and tell them the battery (or charge contoller CIRCUIT) is defective.
If it's out of warranty, PAY them to replace it.
bftb0 said:
Why do you think it is a "software bug" when millions of people running the "same software" don't experience the same behavior?
I realize that software can exhibit data-dependent behaviors, and thus exhibit low occurrence rates... but there is no "software" involved in charging the battery.
Do you think a booted Linux kernel is needed to charge a battery? How would the battery get charged when the device is turned off in that case? C'mon!
Send it back and tell them the battery (or charge contoller CIRCUIT) is defective.
If it's out of warranty, PAY them to replace it.
Click to expand...
Click to collapse
Then how do you explain that if right now I flash back to 4.1.2 it will work fine? If you want I'll provide screenshots.
I just flashed back to 4.1.2 this morning and it worked perfectly. Just now I flashed codefires 4.2.2 build and the problems back.
Please explain how that is hardware related.
I may of jumped the gun assuming it was a charging issue. It seems like it might be a battery drain issue. Here's a couple screenshots from a fresh install of codefirex 4.2.2 build.
Sent from my Nexus 7 using XDA Premium HD app
All I was trying to say is that when the OS is booted, at most all it does is monitor battery voltage and current - it doesn't get actively involved in control of charging circuitry.
At most this historical data can be used to *predict* when the battery will run out of juice, and this number is what is shown to the user as a % charge number. Hopefully that allows the prediction to be sort of correct as the battery ages and it's characteristics change.
This "calibration data" is only used for prediction - it does absolutely nothing to alter the rate at which current is drawn from the battery by the motherboard, nor for attempting to alter the behavior of a battery charge controller.
Li-Ion and Li-Polymer batteries are indeed complicated enough that they should not be charged by extremely simple circuits if a long operating lifetime is desired. For this purpose though, monolithic battery charge controllers chips are used - they do not need any assistance of a micro-controller or advanced CPU running a modern OS. That's why they are able to charge batteries rapidly and appropriately when the motherboard is in a "powered down" state.
Relative to a big multi-core CPU chip, which might have hundreds of millions of transistors, battery charge controllers are extremely small circuits - they are sold by the billions and cost in the ballpark of one to several pennies. They don't need the support of a CPU or even a microcontroller to operate correctly.
Good luck with your tab; I hope you enjoy it.
bftb0 said:
All I was trying to say is that when the OS is booted, at most all it does is monitor battery voltage and current - it doesn't get actively involved in control of charging circuitry.
At most this historical data can be used to *predict* when the battery will run out of juice, and this number is what is shown to the user as a % charge number. Hopefully that allows the prediction to be sort of correct as the battery ages and it's characteristics change.
This "calibration data" is only used for prediction - it does absolutely nothing to alter the rate at which current is drawn from the battery by the motherboard, nor for attempting to alter the behavior of a battery charge controller.
Li-Ion and Li-Polymer batteries are indeed complicated enough that they should not be charged by extremely simple circuits if a long operating lifetime is desired. For this purpose though, monolithic battery charge controllers chips are used - they do not need any assistance of a micro-controller or advanced CPU running a modern OS. That's why they are able to charge batteries rapidly and appropriately when the motherboard is in a "powered down" state.
Relative to a big multi-core CPU chip, which might have hundreds of millions of transistors, battery charge controllers are extremely small circuits - they are sold by the billions and cost in the ballpark of one to several pennies. They don't need the support of a CPU or even a microcontroller to operate correctly.
Good luck with your tab; I hope you enjoy it.
Click to expand...
Click to collapse
Thank you for taking the time to write out this detailed explanation. I read it over a couple times and that all makes a lot of sense and now I have a little better understanding of how things work charging wise.
But I still can't wrap my head around how the problem DISAPPEARS COMPLETELY on any 4.1 based build...
I'm not trying to contradict you in anyway it seems like you are way more knowledgeable then me on the subject.
It just doesn't make any sense and I was hoping you could make more of it for me.
Maybe it isn't the charging but a battery drain issue something on 4.2 based builds is draining more current then the charger can dish out.
But while i was doing research I read that chargers up the current they dish out if the device is in use. Is that correct?
I've looked into the media server bug but as I just did a fresh install of stock 4.2.1 and haven't changed or added anything to the file structure that wasn't included in the factory image, I also went through and turned off the keyboard press sound and all other sounds like explained in some of the threads I have read. I also read that the problem is supposed to be fixed in 4.2.2. I also haven't installed any apps from the market.
I guess all I'm looking for is the answer to this question:
Could there really be a hardware related problem of any sort (not just charging and battery problems but anything) that causes problems with 4.2 based builds specifically but doesn't cause problems with 4.1?
If the answer is yes then I don't have to feel bad about sending it in but if its software based issues I'll be upset that I wasn't able to fix it and gave up.
Have you let the battery drain all the way or do you just plug it in at a certain point? if not let it get to the point were it will turn itself off. if the battery with the cross in it stays for more than it would take for 1% to drain then it just might be your battery stats file. even if its not let it drain and then charge it while its off. you can check the battery by pushing the power button quick. i know i have had this problem with other devices that were fixed by doing this. and my N7 did it last night were i updated and plugged it in, it was at 60% and when i woke up it was at 46%.
projectzro said:
Have you let the battery drain all the way or do you just plug it in at a certain point? if not let it get to the point were it will turn itself off. if the battery with the cross in it stays for more than it would take for 1% to drain then it just might be your battery stats file. even if its not let it drain and then charge it while its off. you can check the battery by pushing the power button quick. i know i have had this problem with other devices that were fixed by doing this. and my N7 did it last night were i updated and plugged it in, it was at 60% and when i woke up it was at 46%.
Click to expand...
Click to collapse
I'll give this a try right now then post results, the battery is already pretty low so It shouldn't take very long. Thanks for the response.
projectzro said:
Have you let the battery drain all the way or do you just plug it in at a certain point? if not let it get to the point were it will turn itself off. if the battery with the cross in it stays for more than it would take for 1% to drain then it just might be your battery stats file. even if its not let it drain and then charge it while its off. you can check the battery by pushing the power button quick. i know i have had this problem with other devices that were fixed by doing this. and my N7 did it last night were i updated and plugged it in, it was at 60% and when i woke up it was at 46%.
Click to expand...
Click to collapse
So I let it run dry and am getting some weird behavior...
The dead battery symbol did not pop at all. It actually booted played the low battery sound half way through the nexus logo loaded into the OS and immediately was greeted by the battery to low logo powering down message and then it returned off. It did this cycle all the way through three times in a row before holding the power button did nothing. I let it sit for a minute before trying again and I got another boot out of it all the way to the OS again. But I've yet to be greeted by the battery with the cross symbol. Holding the power button will do the cycle described above or do nothing at all.
krisserapin said:
But while i was doing research I read that chargers up the current they dish out if the device is in use. Is that correct?
Click to expand...
Click to collapse
Well, the 120v->5v converter certainly can be providing more current @5v because the device is active, but that's only because the motherboard is drawing current in parallel with the battery charging circuit. It doesn't mean the battery charge rate is higher.
krisserapin said:
Could there really be a hardware related problem of any sort (not just charging and battery problems but anything) that causes problems with 4.2 based builds specifically but doesn't cause problems with 4.1?
Click to expand...
Click to collapse
I suppose so.
I would do a few things to determine whether that is a reasonable hypotheses, though.
1) See how fast the battery charges with the tablet turned off. Should be close to 40%/hour for a new battery. You know there is no "software" running with the tablet turned off, so if you don't see some reasonable number here (say > 20%/hr) then a bad battery or charge controller circuit in the tab are the most likely culprits. Also, if the temperature rise of the tablet while doing this seems higher than the gf's unit, that would implicate the battery, not the charging circuit.
2) There's software, and then there's software. (Preinstalled vs. User installed) Run the battery down a ways, and then observe the battery charging rate with the device on but screen off (sleeping), but on a stock 4.2 install with ZERO user apps installed. Then, install/restore all your favorite apps, reboot, maybe use a couple of your fave apps, and repeat the same charge rate trial (screen off/sleeping). Are there large differences between the two cases? If so, that would implicate one of your apps in causing either lots of additional compute operations or preventing entry into the LP0 state (perhaps because of wakelocks?)
The thing is, the N7 battery is rated at 4325 mAh; that is sort of the same thing as 4.325 amps of current for 1 hour. (Voltage range of roughly 4v to 3.5v).
So, if a "good battery" can be charged in 2.5hrs, that is sort of like stuffing 1.73 amps into the battery for that time (1.73 x 2.5 = 4.325 A-h or 4325 mA-h). That's pretty near to the max capacity of the AC charger (2A)
Now, some users have reported discharging their tabs in 4 hours under heavy continuous use; that would be about 1.08 amps for 4 hours.
Since the wall charger is rated to produce 2A, this suggests that very heavy usage simultaneous with charging would indeed cause battery charging to slow down significantly - let's suppose it drops from 1.73a to 0.65a. Now it takes the battery 6.6hrs to charge ... but that is still just over 15%/hr ... with the tab in active use.
But that's not what you were noticing - you were seeing much worse charge rates than this when the tablet was supposed to be more or less idle!
Finally I should point out that I previously mentioned that the % charge number is a prediction, not a measurement! If for some reason this number were screwed up, then the "charge rate" observations could be completely screwed up. (Think of this as being analogous to trying to partially fill a gas tank in a car or estimate fuel mileage with a broken gas gauge) The only way to be sure that you are not falling victim to something like this is to record battery voltages - the 100% level should be up around 4v, and the 10% values down around 3.5v.
You can observe this value at /sys/devices/platform/tegra-i2c.4/i2c-4/4-0055/power_supply/battery/voltage_now
(note value is reported in uV)
Whew - long post. It doesn't directly answer your question about "why was 4.1 so different?" - but gives you an idea about why I was skeptical when you saw charging rates as low as you did.
I dunno, maybe the % charge prediction value numbers are screwy on your tab for some strange reason in 4.2, perhaps because of a minor hardware difference. I can't rule it out - I once saw a bug expression in a hardware/software combination that required three independent conditions (from three separate vendors!) to have precise configurations before the bug would show itself.
I hope this post gives you some ideas to try; it certainly doesn't give a solution.
Good luck - if you feel like spending more time investigating, go for it; just don't let the clock run out on the warranty period if you have one left.
bftb0 said:
Well, the 120v->5v converter certainly can be providing more current @5v because the device is active, but that's only because the motherboard is drawing current in parallel with the battery charging circuit. It doesn't mean the battery charge rate is higher.
I suppose so.
I would do a few things to determine whether that is a reasonable hypotheses, though.
1) See how fast the battery charges with the tablet turned off. Should be close to 40%/hour for a new battery. You know there is no "software" running with the tablet turned off, so if you don't see some reasonable number here (say > 20%/hr) then a bad battery or charge controller circuit in the tab are the most likely culprits. Also, if the temperature rise of the tablet while doing this seems higher than the gf's unit, that would implicate the battery, not the charging circuit.
2) There's software, and then there's software. (Preinstalled vs. User installed) Run the battery down a ways, and then observe the battery charging rate with the device on but screen off (sleeping), but on a stock 4.2 install with ZERO user apps installed. Then, install/restore all your favorite apps, reboot, maybe use a couple of your fave apps, and repeat the same charge rate trial (screen off/sleeping). Are there large differences between the two cases? If so, that would implicate one of your apps in causing either lots of additional compute operations or preventing entry into the LP0 state (perhaps because of wakelocks?)
The thing is, the N7 battery is rated at 4325 mAh; that is sort of the same thing as 4.325 amps of current for 1 hour. (Voltage range of roughly 4v to 3.5v).
So, if a "good battery" can be charged in 2.5hrs, that is sort of like stuffing 1.73 amps into the battery for that time (1.73 x 2.5 = 4.325 A-h or 4325 mA-h). That's pretty near to the max capacity of the AC charger (2A)
Now, some users have reported discharging their tabs in 4 hours under heavy continuous use; that would be about 1.08 amps for 4 hours.
Since the wall charger is rated to produce 2A, this suggests that very heavy usage simultaneous with charging would indeed cause battery charging to slow down significantly - let's suppose it drops from 1.73a to 0.65a. Now it takes the battery 6.6hrs to charge ... but that is still just over 15%/hr ... with the tab in active use.
But that's not what you were noticing - you were seeing much worse charge rates than this when the tablet was supposed to be more or less idle!
Finally I should point out that I previously mentioned that the % charge number is a prediction, not a measurement! If for some reason this number were screwed up, then the "charge rate" observations could be completely screwed up. (Think of this as being analogous to trying to partially fill a gas tank in a car or estimate fuel mileage with a broken gas gauge) The only way to be sure that you are not falling victim to something like this is to record battery voltages - the 100% level should be up around 4v, and the 10% values down around 3.5v.
You can observe this value at /sys/devices/platform/tegra-i2c.4/i2c-4/4-0055/power_supply/battery/voltage_now
(note value is reported in uV)
Whew - long post. It doesn't directly answer your question about "why was 4.1 so different?" - but gives you an idea about why I was skeptical when you saw charging rates as low as you did.
I dunno, maybe the % charge prediction value numbers are screwy on your tab for some strange reason in 4.2, perhaps because of a minor hardware difference. I can't rule it out - I once saw a bug expression in a hardware/software combination that required three independent conditions (from three separate vendors!) to have precise configurations before the bug would show itself.
I hope this post gives you some ideas to try; it certainly doesn't give a solution.
Good luck - if you feel like spending more time investigating, go for it; just don't let the clock run out on the warranty period if you have one left.
Click to expand...
Click to collapse
Wow thank you so much for the help. I'll play around with this tonight and see what happens. If I can't figure it out by the morning I think I'll be able to RMA it without feeling like I just rolled over and let my n7 get the best of me.
So after charging it on stock 4.2.1 with the power completely off it only charged 3% in a little over a hour and voltages read 3.6. I'm gonna leave it on the charger over night turned on starting from 3% with only two extra battery monitoring apps installed and report back in the morning with screenshots of the results. After that ill probably revert to 4.1.2 drain the battery fully, charge it off for an hour report the values then let it charge fully with the battery apps on for reference take a few more screenshots then lock the bootloader install the ota and ship it off to good old ASUS since it sounds like its hardware from whats been explained.
FWIW, I drained my N7 last night (LOL, typing novels into XDA threads) - when I finished I was at 6% charge - that was 3.66v. In the morning @ 100%, the battery voltage was 4.1-something.
Sounds to me like you've definitely got a hardware problem.
Good luck with the RMA.
Canyou help me?
Since I flashed 4.2.2 my 240V-USB charger only cahrges thes battery about 5% in one hour.
Before (with 4.2.1) It was definitely faster. It charged more tha 5% per hour (maybe 20-25%).
I double checked the plug in the socket. checked the correct fit of the USB cable on the docking station.
Everything fits tight. No wiggle.
It must be software related, since it started after flashing the OTA zip from 4.2.1 to 4.2.2
Polarfuchs said:
Canyou help me?
Since I flashed 4.2.2 my 240V-USB charger only cahrges thes battery about 5% in one hour.
Before (with 4.2.1) It was definitely faster. It charged more tha 5% per hour (maybe 20-25%).
I double checked the plug in the socket. checked the correct fit of the USB cable on the docking station.
Everything fits tight. No wiggle.
It must be software related, since it started after flashing the OTA zip from 4.2.1 to 4.2.2
Click to expand...
Click to collapse
From a partially charged state, say below 50%, turn the device off, (NOT sleeping, but powered OFF) and put it on the charger for one hour.
It should charge at around 30-40%/hr.
As I pointed out above, how is it possible that software would be affecting the charging with the device turned OFF?
I believe you are seeing exactly what you report; my best guess is that a hardware problem occurred just about coincidentally with your upgrade. Just coincidence - not causation.
You also should inspect the battery voltage (see above for path in /sys) in case something crazy is happening with the %charge *prediction* (it is not a measurement) - because the total charging range is from about 3.65v-4.15v, a normal charge rate should be roughly 150 to 200 mV/hr
good luck
My Galaxy S5 was experiencing extreme battery drain, even while not in use and in my pocket.
After a bit of searching, it turns out I'm not alone. So I thought I'd share my potential fixes to this problem. Your solution may be different to others, so try each one until you find your battery works as good as it should, like mine now does.
Attached is what my battery drain looks like after these 3 tips, even during heavy use.
If you have any extra possible solution, then please post them.
Problem: Android 4.4.2 bug: When location is enabled it causes extreme battery drain. Because it doesn't let the phone sleep.
Solution: Turn off location services until a patch is released.
Problem: Quick Connect not allowing the phone to sleep.
Solution: Root your phone, and either delete or move the APK files: QuickConnect.apk & QuickConnectInteraction.apk from /system/app to somewhere else, such as a disabled folder.
Problem: Skype bug causing battery drain.
Solution: Uninstall Skype until a patch is released.
Hmmm that's strange, my S5 has the best battery life i've ever had on a phone.
I'm pretty sure you turn on the Always ready to connect in Quick Connect that causes thw device unable to sleep.
Sent from my SM-G900H using Tapatalk
nudawa said:
I'm pretty sure you turn on the Always ready to connect in Quick Connect that causes thw device unable to sleep.
Sent from my SM-G900H using Tapatalk
Click to expand...
Click to collapse
That wasn't working for me. No matter what I did, my battery was being demolished so that I had 50% 3 hours off-charge. Now I get so much more.
craigcrawford1988 said:
My Galaxy S5 was experiencing extreme battery drain, even while not in use and in my pocket.
After a bit of searching, it turns out I'm not alone. So I thought I'd share my potential fixes to this problem. Your solution may be different to others, so try each one until you find your battery works as good as it should, like mine now does.
Attached is what my battery drain looks like after these 3 tips, even during heavy use.
If you have any extra possible solution, then please post them.
Problem: Android 4.4.2 bug: When location is enabled it causes extreme battery drain. Because it doesn't let the phone sleep.
Solution: Turn off location services until a patch is released.
Problem: Quick Connect not allowing the phone to sleep.
Solution: Root your phone, and either delete or move the APK files: QuickConnect.apk & QuickConnectInteraction.apk from /system/app to somewhere else, such as a disabled folder.
Problem: Skype bug causing battery drain.
Solution: Uninstall Skype until a patch is released.
Click to expand...
Click to collapse
Problem: Backlight of the touch keys uses some battery
Solution: Go to settings under Display and turn the backlights off
Problem: Screen uses more power lighting up brighter displays
Solution: Use a BLACK Lockscreen and homescreen
Problem: Air Gestures use valuable battery
Solution: Turn off all un-needed gestures and motions under settings of motions and gestures.
Credit: http://phandroid.com/2014/04/25/samsung-galaxy-s5-first-14-things-to-do/
I was getting the battery drain and slow charging. Removed and reinstalled Google Search and that fixed the battery charging. I couldn't figure out the battery drain so I simply factory resetted it and it has been great since. I am at 30 hours since my last charge and still have 50% to go, with light use.
aft_lizard01 said:
I was getting the battery drain and slow charging. Removed and reinstalled Google Search and that fixed the battery charging. I couldn't figure out the battery drain so I simply factory resetted it and it has been great since. I am at 30 hours since my last charge and still have 50% to go, with light use.
Click to expand...
Click to collapse
You say removing the Google Search fixed you problem with the slow charging of your device ?!? I have noticed that my device charges very slow connected to an USB3.0 port...it only charges with 450mA.
p0tent said:
Hmmm that's strange, my S5 has the best battery life i've ever had on a phone.
Click to expand...
Click to collapse
I agree. Almost 90% of the time battery drain is user error
---------- Post added at 07:15 PM ---------- Previous post was at 07:08 PM ----------
nubsgohard said:
Problem: Backlight of the touch keys uses some battery
Solution: Go to settings under Display and turn the backlights off
Problem: Screen uses more power lighting up brighter displays
Solution: Use a BLACK Lockscreen and homescreen
Problem: Air Gestures use valuable battery
Solution: Turn off all un-needed gestures and motions under settings of motions and gestures.
Credit: http://phandroid.com/2014/04/25/samsung-galaxy-s5-first-14-things-to-do/
Click to expand...
Click to collapse
Backlight keys use very little power
I also use a lockscreen that changes backgrounds (Travel Wallpaper) and have gestures on at all times and my last charge lasted 48 hours and still had juice left . Although what you mentioned above might impact battery drain but only a little and wouldnt cause you to seek answers for poor battery life .Best solution is see whats keeping your phone awake (wakelock)
DirkStorck said:
You say removing the Google Search fixed you problem with the slow charging of your device ?!? I have noticed that my device charges very slow connected to an USB3.0 port...it only charges with 450mA.
Click to expand...
Click to collapse
That can be right, most USB 3.0 ports on laptops and computers do not provide more than 500mA.
For fast charging always use the wall charger. When using the original charger that came with your phone and the original cable (USB 3.0 compatible) your device can pull the full 1800 mA from the charger, since it can sense that the charger is able to handle this safely. When you use a USB 2.0 compatible cable it will only pull 1200 mA from the charger, even if it's an original Samsung wall charger.
I had serious battery problems with my S5 too, battery drained within 8-16 hours. After I removed Skype problems seemed to be solved.
I've had the same problem battery drain only 15 hours I have turned few wifi settings off
Smart network - off
Keep wifi on during sleep - changed to only when plugged in (would have thought this would be default)
Always allow scanning - off
network notifications - off
Hope this helps someone last 2 hours only lost 1-2%
UTH01 said:
That can be right, most USB 3.0 ports on laptops and computers do not provide more than 500mA.
For fast charging always use the wall charger. When using the original charger that came with your phone and the original cable (USB 3.0 compatible) your device can pull the full 1800 mA from the charger, since it can sense that the charger is able to handle this safely. When you use a USB 2.0 compatible cable it will only pull 1200 mA from the charger, even if it's an original Samsung wall charger.
Click to expand...
Click to collapse
Ok. I am using now this kernel ktoonsez KT-SGS5 and with a normal USB2.0 cable I get 1000mA from my USB3.0 port and get 1800mA from my wall charger.
DirkStorck said:
Ok. I am using now this kernel ktoonsez KT-SGS5 and with a normal USB2.0 cable I get 1000mA from my USB3.0 port and get 1800mA from my wall charger.
Click to expand...
Click to collapse
Cool, that means in this kernel some of the original power management restrictions have been removed. It would be interesting to see if the limit on charging via the contact points on the back of the phone (used for Qi wireless charging and by car mounts like Mountr that use inductive charging) now als can accept more than 750 mA...