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I know there are already a lot of discussions on battery drain and believe me, I have read every single one of them. However, I think mine is slightly different:
When fully charged and using WIFI for 10 minutes, 10% of juice will be used. Listening to MP3 for 1 hour will also use another 10%. Overall, battery life is really bad but the key is it only happened suddenly. It have been very good up till now.
I have tested this on another battery and have exactly the same results so it is not battery related. I have also hard reset the phone and tested the battery with nothing installed and it still drains. A full charge only lasts me like 4 hour of very light use.
I installed Battlog and the power consumption is around 90 which I think is pretty low, but at times, even with this low consumption, I can see the battery usage literally falling before my eyes, like 5 % in 5 minutes.
I have also tried the HTC battery test, i.e. fully charged the battery, turned on plane mode and full brightness. After one hour, it only used 8% which I thought is normal. However, if I start using the phone by just simply clicking around, it will start dropping.
I believe the phone is fine on standby but once it starts doing things, even simple operations like moving around folders, it starts consuming a lot of power.
This all happens after an overnight charging episode when I noticed that the light stays amber in the morning and the percentage stays at 80%. I soft reset the phone and it immediately show 100%. This has never happen again but my battery usage is never normal since.
All in all, I think it is somehow hardware related, like the battery gauge is bad or the charging is never complete but it still shows green. It is still under warranty but I think will be very difficult to convince the service centre that there is something genuinely wrong with the phone.
P.S. Should also mentioned that I am using the stock telstra rom and have also cycled through the batteries twice before testing.
I had the same problem...
You should try resetting you battery:
1: let your battery drain to 0%
2: fully charge your battery while keeping your phone off!
this solved the problem for me..
Fenixz said:
I had the same problem...
You should try resetting you battery:
1: let your battery drain to 0%
2: fully charge your battery while keeping your phone off!
this solved the problem for me..
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Click to collapse
I had actually "reset" the battery but only drain it to 5% before recharging as I have read that it is not safe to drain to 0%. I'll try to completely drain it tonight and recharge. Will report back.
btw, I noticed that when the battery is charged to 100%, the led stays amber for about 15-20 minutes before turning green. Is this normal or should it turn green immediately after reaching 100%?
Tried completely draining the battery and charge overnight but have no effect. The problem persists. So this is definitely not a battery problem.
I guess the last thing I can try is charging the battery with a standalone charger or another HD to see if there is problem with the charging mechanism in my phone.
The latest Telstra rom seems a bit better on battery
led amber
The led amber must turn to green
immediately after unplugging.
some thing is wrong with your charge
system .
aidinali said:
The led amber must turn to green
immediately after unplugging.
some thing is wrong with your charge
system .
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Click to collapse
aidinali, can you please explain what you mean? I thought the led will go off if you unplugged the charger. My problem is that after reaching 100% as indicated on the phone, the led stays amber for another 15 minutes before turning green.
Well , I'll correct & explain more....
1-when you reach %100 ,the led will turn to green immediately (if you’r phone is plugged in).
2-if you unplug ,the led will turn off (as you said ).
The problem is that since the battery meter in HD has not been defined by percentage , it doesn't match with
Apps like battery level or battlog .so when you see %100 on them , it' s not "real % 100 ".
I believe there is something wrong with the phone as the percentage usage and charging status do not match. However, since the basic HTC software does not have any battery usage in percentage, it’s hard to convince the service centre that something is wrong.
Any software that shows the battery as a percentage all have the same reading, so I assume they all rely on the mainboard for that information. There is obviously something wrong with either the charging process of the phone or draining more battery than it needs during usage.
I have 100% exactly the same problem as in the original post.
Does anyone else?
I have also tried 2 batteries and had exactly the same results with both, so I also know it is not the battery. The only app I have installed other than Dutty's 6.5 rom is Tomtom which does not need to be run for any of these issues to occur.
Any chance on warranty? I think it's software...
Try a different ROM. I've been having the same problem. I just flashed a new ROM about an hour ago (partly because Dutty's 6.5 kept freezing). I'm hoping both problems will be solved now.
i've found the latest radio rom to make a big different to battery life. 1.14.25.24_radio
the previous radio rom (1.13?) did suck the juice and made battery last 2 days less than 1.14
Try charging with a different charger. Ie. connect a USB cable on your PC and charge it from there.
I've had very similar problems with the stock charger a month after i got my TouchHD, and ended up testing with my old P4350 charger and all problems went away.
I've had similar drains even witch WiFi off, no emails, exchange or 3G access...
Now i'm getting a whole day's usage and i'm left with 30-40% battery, with 2 hours average talk time
I've tried with a number of chargers.....battery still sucks.
I've just switched from Dutty's to Energy ROM, radio is 1.14
If anything...energy drains more quickly than Dutty's
It says it drawing 350mA
Ok, I've used Energy ROM but now using Dutty's Leo. The only thing I've loaded so far is Battery Guard which say it's drawing 98mA when on standby(ie....backlight goes off). That'sa massive difference on the 250mA readings I used to get....now all I have todo is figure out which program I'm loading that is killing my battery.
That still only equates to 12 - 13 hours on a good standard battery with no use at all.
samlives said:
Ok, I've used Energy ROM but now using Dutty's Leo. The only thing I've loaded so far is Battery Guard which say it's drawing 98mA when on standby(ie....backlight goes off). That'sa massive difference on the 250mA readings I used to get....now all I have todo is figure out which program I'm loading that is killing my battery.
That still only equates to 12 - 13 hours on a good standard battery with no use at all.
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Click to collapse
Standard battery should last longer. Sounds like your battery may be slightly faulty. Make sure you let battery drain fully before charging, and always try charging with device off. Should help improve strength.
I had same problem when i flashed miri's rom, hd got warm and didn't last, it cooled down in standby, the answer to my problem was that the wifi was not set to save battery mode, once i set it to save power everything was ok
Used 8% in 24 hours
Fallen Spartan said:
Standard battery should last longer. Sounds like your battery may be slightly faulty. Make sure you let battery drain fully before charging, and always try charging with device off. Should help improve strength.
Click to expand...
Click to collapse
Have been trying that for a month now....something seems to have suddenly worked It only used 8% of the battery in 24 hours! I live in the rainforest with no service so cellular was turned off...wifi on, but I only accessed it about 6 times......still,nothing has changed. The same conditions would leave me with a dead battery in 7 hours previously.
Time will tell if it keeps up this well.
By the way....Thanks
So basically you're saying people should drain down the battery to 1% or so and not to 0% (device dies when battery is out) to get a better battery strength?
Seems to be the general consensus. I'm still not sure if that's what made the difference for me but previously,I would put my device to standbye when I went to sleep at 10:30pm and it would be dead by 6am
Hi!
I have a question about charging a battery. If i charge my phone when the phone is turned on then charging takes four hours and is still at 75%, but if i turned it off while charging then the battery is full (green light) in a few minutes despite being only at 75% while it was on??? If i charge the phone turned off then the charging takes a little less than 2 hours and the green light turns on, that is pretty normal i presume. So is there a bug while charging the battery when the phone is on? thanks for all your answers!
(sorry for my English, please try to understand )
In Thailand, this problem about charging battery is called "Red Light Problem".
Battery meter will show hang at about 75%, Red Light on. (I mean that my phone is turn on and charging about 3 hrs or more)
But after I soft-reset, battery meter will change to show full, Green Light on.
No have this problem, if I charging while phone is turn off.
For this problem, My phone is already claim (change new one) from htc Thailand. (good service)
Some users in Thailand try to test and find out, this problem will occur when we install SPB Backup (or/and/not restore from this program also).
After hard-reset, this problem is not come. (some users still come again )
Some users change from HTC Official ROM to Customized Rom in xda-developers, this problem is not come anymore
And the other problem is battery meter show not be equal after soft-reset time by time.
Example that, battery meter now showing 75%, after soft-reset show 60%,
soft-reset again show 70%.
so this is not a big problem then. it is just some kind of a software fault. maybe it will be gone with official windows 6.5 release. I hope it will be soon.
I was using LED me know...to customize LED notification on HD2 and since its more reliable also. However as I found out today...LED me know makes the standby battery consumption to around 120mAh constantly when the led is flashed. And it wasn't an odd spike...i checked currentwidget log...it has been like that for more than 2 hours when LED was flashed and after resetting the service..it again came back to usual 3-8mAh.
Is it same for you guys also?
Okie dokie, ive had a wee look about and whilst there are several posts on battery issues i dont see much on this one ive come across.
Ok, first things first, battery usage seemed a bit high but nothing too major, still got me through a day, then it got worse, bit by bit it was lasting less and less time. so ive done a few wee tests with flashing other WM roms and WP7 and i think i have a good explination.
It seems if you leave it on charge all night it may not quite fill up, if you unplug it when the green light comes on then plug it back in it fills up propperly, if however you unplug it when the green light is on and isnt full, plug it back in again and then unplug it again before its full it reports on wp7 as being full, which it isnt, then it looks like your battery is draining like a comet falling out of the sky which of course it isnt, just just your battery isnt full to start with.
anyhow, it seems to get worse if you dont notice it not filling up, so if i fill it up to say 80%, then use it, and at some point during the day plug it in briefly but not enough to fill it up fully it then takes that level as the battery max, the next recharge doesnt fill it up until a restart.
So yes, thats all rather complicated and probably makes little sence to anyone but me but the point is this, for one reason or another WP will think the battery is full when it isnt, which makes it look like the battery usage is massive, which it isnt, it just appears that way because as far as WP is concerned, under the right circumstances your battery is perhaps half the size it really is
I'd support dazza9075 in his articulation of this undocumented 'feature'. Without having given it the same levels of consideration, I've had similar experiences where I have had a phone on the green light - I unplug it, take a short call, plug it back in and it stays on amber for another hour or more.
Elsewhere in similar threads there was a suggestion to soft reset at bedtime. I haven't done so rigorously, but the once or twice I have done, it does seem that there is more battery left in the morning.
Of course, in the absence of hard data from a battery percentage meter - assuming it is accurate - this is all subjective speculation anyway. But it is reasonably safe to say that WP7's battery reporting is immature at best.
Aye, not having propper access to battery stats is a bit of an oversight. Just to add to my ramblings just charged the phone, green light, unplug, icon suggests 100%, plug in an amber light pops on, unplug an Icon dropped to around 80%, plug in again and leave phone on standby it will charge, but as I type on here battery icon gone straight to full an green light on.
Lesson of the day, charge and don't use phone, keep repeating unplug an charge to get full charge back
Good stuff guys! Indeed; i noticed the same thing! Although when it says Low Battery i can assure you that the phone will still work for a day like mine.. i charged it yesterday morning; at night it said battery low and still now i am using it! Weird stuff but as we know WP7 is not meant to be on HD2! Someone here (member or dev) will fix the problem some day like Android OS... This is just the Beginning!
I can completely agree with the observations written above regarding the battery charging in our HD2s.
Just install the Battery Tool from the HTC test package found here:
http://forum.xda-developers.com/showthread.php?t=896104&highlight=test
Then when you open the program, for fully (I mean really full battery) there must be the following lines there:
Code:
Weight: 1000
RARC: 1000
Voltage: 4196 (+/-, different, this is mine battery)
Current: 0
Full: 1230
ACR: 1230
Last one (ACR) and Weight (1000) are the most important, so that ACR == FULL. After that I can use the phone for 2 and half days with moderate usage.
When the usually charging appear, after the green light, when I open the application it says:
Code:
Weight: 686
RARC: 686
Voltage: 4196 (???)
Current: 30 (it appears still charging with small amount of amperage)
Full: 1230
ACR: 840
For me here the battery is 2/3 full, but is strange that it reports full voltage, although ACR << FULL. If I unplug the charger, then just right after some minutes I'm starting to see how the battery indicator decreases fast.
EDIT: It seems that after green light, If I unplug the charger and plug it again, the above settings change dramatically, as well as indicator, showing 2/3 full battery:
Code:
MS_Percent: 69
PA_Percent: 69
Weight: 686
RARC: 686
Voltage: 4196
Current: 75
Full: 1230
ACR: 845
Then after 2-3 minutes it's becoming green again and MS and PA pointing to 100, BUT Weight and RARC = 686.
The question is, is really battery 2/3 full or is just wrong determination of charging percents (battery indicator levels) as noted above?
ah, very good tool
I think that just proves what i suspected, the phone dosnt have a clue what its doing, to get a full charge, simply unplug when green light comes on, keep screen off on standby and replug-in,red light appears until it thinks its "full" repeat process until ACR is full. A reboot will have the same effect it seems
Failer to do so makes phone results in incorrect battery stats and can result in the phone appearing to have a much hight battery usage then it really does
hd2 wp7 battery tips
I struggled a lot initially then I did the following changes which made my battery last for 3 days, yes you heard it right.
1. Remove all live & Facebook (active) tiles from the home screen
2. Turn data/WiFi off when not in use.
yes, use the battery tool from htc to read and charge your battery to 100%...though it says 100%...charge until ACR reading and FULL reading are same or the battery current says zero....similar to current widget in android where the phone can be charged till the current is 0ma..meaning no current is passing between the phone and charger
Where do we get the battery tool from htc?
Edit: Foud the link in the above posts .... Thanx
Not exactly related but I have the same problem with charging, if I plug into my laptop it starts orange and turns green when its 100% but what it looks like to me is that when it thinks its charged it turns off the charger and the light still stays green.
So my battery starts draining but still showing green, if I unplug and plug back it will go to 100% but the same happens again.
Getting annoyed with this I got one of these...
http://cgi.ebay.co.uk/UK-USB-Desktop-Battery-Charger-HTC-HD2-LEO-T8585-UK-/260757456468?pt=UK_MobilePhones_MobilePhoneAccessories_MobilePhoneChargers&hash=item3cb65b0654
Its tedious taking my battery out but now I get over a full day without having to charge.
P.S. the battery tool is in this thread http://forum.xda-developers.com/showthread.php?t=911309
I'm a huge fan of this particular little battery-related nugget. And I'll be a monkey's uncle: it works.
http://forum.xda-developers.com/showthread.php?t=1041912
My personal habits call for a soft-reset at bedtime (while it's plugged in) and a little video camera shoot when I wake. This yields about 18 hours of battery life for me with constant 3G and/or WiFi usage. I average ~12,000 texts per month.
GameDr04 said:
I'm a huge fan of this particular little battery-related nugget. And I'll be a monkey's uncle: it works.
http://forum.xda-developers.com/showthread.php?t=1041912
My personal habits call for a soft-reset at bedtime (while it's plugged in) and a little video camera shoot when I wake. This yields about 18 hours of battery life for me with constant 3G and/or WiFi usage. I average ~12,000 texts per month.
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Click to collapse
which version of WP7 and radio rom are u using ? Presume its a EU HD2
Dear android developers
2 days ago i had a problem with a rom, so i had to take out the battery. When i placed the battery back in the problem was solved. Unfortuanetly something happend afterwards and now my battery is really weak its been 8 hours since i last charged the phone now it is %16 Ive tried changing roms. I even downloaded cm7 which was pretty good on battery drain, now its really weak hope you guys can help me.
Thanks in advance
try draining the battery till the phone shuts down
Turn off the phone, try to fully charge, to green LED lights up, then go to ClockworkMod recovery, advanced, and select wipe battery stats.
Maybe this help u
greets from poland
clean the contacts on the battery, blow out the compartment with canned air. sounds like a bad connection to the battery.
fyi the led turns green at 90% charge.
and i need more data than its weak.
screen shots of usage after 8hrs would rock.
If phone are turned off, orange change to green at 100% of battery.
If android are running, green LED turns on at 95% battery (for me, AndroidRev 2.3.5 sense 3.0)
tugonu said:
Dear android developers
2 days ago i had a problem with a rom, so i had to take out the battery. When i placed the battery back in the problem was solved. Unfortuanetly something happend afterwards and now my battery is really weak its been 8 hours since i last charged the phone now it is %16 Ive tried changing roms. I even downloaded cm7 which was pretty good on battery drain, now its really weak hope you guys can help me.
Thanks in advance
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Click to collapse
You might have messed up your battery with the pull somehow, if not just let it charge for a long time and see where you are at from there.
Drain the battery in normal use until it shuts off, then go to bootloader and drain the battery until you can't access the bootloader, then do a full charge of the battery.