Related
Hi all, i have developed this weird problem in my jasjar and i'm sure it's some settings that need to be changed somewhere and not the battery itself. When i first got the jasjar, it gave me a good 48 hours battery backup on standard use but i lost my charger and started using usb to charge it. it's since then that my jasjar drains the battery in less than 12 hours. i have tried replacing 3 batteries but to no better effect. I remember reading something about the Li ion polymer batteries having the memory effect or something and how to reset that in the bootloader mode. if you guys could help me figure it out and fix the problem, i'd appreciate it! here's the details of my rom.
R:1.13.00
G:42.47.p8
D 2.01.06 wwe
the rom is the wm6 from jwright.
(nb: i had the same problem with my shipped wm5 rom and i thought upgrading it would help but it didnt apparently).
How long do i need to use the battery to check the drain thingy. the reseller tells me to use it for 2 weeks before judging it. i'm screwed with having no battery life to this otherwise beauty of a device! if i could get any help, it would be much appreciated. thanks in advance. (josh).
Had the same problem, been happening all week, the phone would just switch of even though it registered over 80% charge. no i am happy again because i read on the forum that you need to totally discharge the battery occationally for it to get to a full charge, it appears that there is some sort of memory effect where the battery thinks it is nearly discharged, try it, i am sure you will find that it workes.
Had the same problem, been happening all week, the phone would just switch of even though it registered over 80% charge. now i am happy again because i read on the forum that you need to totally discharge the battery occationally for it to get to a full charge, it appears that there is some sort of memory effect where the battery thinks it is nearly discharged, try it, i am sure you will find that it works.
awright...i'd try it. thanks for ur help.
mayer said:
Had the same problem, been happening all week, the phone would just switch of even though it registered over 80% charge. now i am happy again because i read on the forum that you need to totally discharge the battery occationally for it to get to a full charge, it appears that there is some sort of memory effect where the battery thinks it is nearly discharged, try it, i am sure you will find that it works.
Click to expand...
Click to collapse
thanks..
I too has a similar problem but this method did not solved my prob as my jasjar switches off by itself at 40%.
I had a similar problem a couple of weeks ago as a charge would last less than 24 hours when I used to be able to last 2-3 days.
Soon sorted it when I found that the Jasjar had decided to disable the automatic switch off, now a charge is back to lasting 2-3 days.
Mike
Had my MDA PRO for 1.5 years, and never had this problem. Battery lasted for 2-4 days on average, although now I have a 3200mAH battery it lasts for well over a week on a single charge
Lithium ION and Lithium ION Polymer (the HTC Universal uses the latter) do not suffer from any "memory effect". The only battery type that does to any significant extent is Nickel Cadmium, which is rarely used these days.
It's also impossible (well, almost) to completely discharge Lithium ION Polymer batteries - internal circuitry in the battery shuts down the cells when the charge gets too low, at up to 10% charge. This is because a completely discharged L.I.P. battery becomes unstable, broken (unable to be recharged), and runs the risk of explosion or leaking in this state. So don't attempt to drain those batteries completely dry folks - it's dangerous! Letting them run down naturally in your Universal should be safe though because of the cut-out mentioned above.
Maybe the Uni just has a large batch of bad batteries? You should also check what apps you have running on it all the time, and how often you use bluetooth and wi-fi - these two REALLY drain the battery if you keep them on all the time... Also try MemMaid, this is great at cleaning up your notifications queue, which is where lots of apps leave old and obsolete entries clogging it up.
I have the same problem. I do not know where the charger is, so I am always using the USB while syncing. I also tried 2 batteries, but they both last about 12 - 14 hours. Maybe it is caused by WM6.
I did not quite get this solution:
"Soon sorted it when I found that the Jasjar had decided to disable the automatic switch off, now a charge is back to lasting 2-3 days.
Mike"
What is the solution?
2 421....:
sorry for lang. the above understands(i hope)
nastavenia(settings)/napajeni(power)/rozsireni(advanced) tam zaskrtnes co xces a nastavis casy. ak pouzivas phonealarm musis aj tam. pozri si aj podsvirtenie(backlight).
btw aj had the same prob. appeared after 6mnth. i bought new battery. btw here is several threads with same prob. try 2 look for solutions there(imho its only one-new batt.)
I feel like I'm walking on eggs...I bought my Jasjar used on eBay just over a year ago, still the original battery. I almost never use the 110v charger, always a USB conection with my Mac, often recharging at 55-75%. I just intentionally ran down my battery to 18% (got warnings to recharge), and recharge via USB/Mac again. It took me almost 4 days to get to 18%, and Bluetooth is constantly on for ready use with my earpiece.
Curious: are the problems with original or replacement batteries? Cheers,
Update to Radio 115 or 114
It's worth taking into consideration that when flashing, you really need to have a full battery. There are reports of batteries starting this kind of behaviour after user has flashed with drained battery, then causes battery charge issues until next reflash.
IMHO even if u charge with a full charged battery still u get a prob so i think its a common issue with the jasjar and its power managment software itself by default as lot of people with diffrent ROMs are complaining about it.
no changes...
well, folks, i tried all these gimmicks but not to any definite changes ... i guess i need to consult the service center guys at last...i didn't want to do that but i guess i need to. i'm sure it's not my battery as i've replaced 3 of them...i dont kno what else to do!!! thanks for ur posts tho as i get to try diff things to check if ma battery is doing ok...keep postin...thanks...
josh.
how 2 discharge a battery >>>>>
problem with battery?
I have the same problem, it firs appear on original battery when charge was 40-50% so I have bought the same battery model (1620mAh). But it doesn't help. Now I,m using the 3200mAh battery and it doesn't help as well. The thing is that XDA switch off it self always on deferent charge level (sometimes is on 20%, 45% ar 80%...so is very difficult predict when it happen again). And one more thing...when it switch-off and I try to switch-on back, I can't (keep switching off), only slolution is put on charger!!!
I have downloaded the service manual (I think called "confidential") and it mentioned that it could be a problem with main board (so its HW problem). So can anybody tell me is a problem with bat or MB? (replacing the MB is fcjfdj$#ing expansive). Thanx.
well if your XDA does not switch on until you start charging it that's a clear indication that your battery is empty. I have the same with my faulty battery. Replaced it by a working one and it's fixed. Something is definately messed up with the charging circuit or the batteries though. They are not supposed to die so easily.
SpyderTracks said:
It's worth taking into consideration that when flashing, you really need to have a full battery. There are reports of batteries starting this kind of behaviour after user has flashed with drained battery, then causes battery charge issues until next reflash.
Click to expand...
Click to collapse
The first time I flashed the PDA I ruined my battery. This time I thought I'd be smart and I put in the old battery while flashing. After flashing I put back the new battery and now that one is broken too! It wasn't even in the PDA when I flashed it. How bizarre is that?
I have to admit I did not fully charge that new battery before flashing, but I figured it would be safe since it wasn;t in while flashing. The battery worked fine the day before I flashed my phone (got the "charge now or save your work" message), but after the flashing and putting it in, it just crashes at around 30% or 40%. The usual battery misery.
Maybe I should try fully charging it and then flashing again. Trouble would be how to get it fully charged though. I always felt charging cuts off early on the "broken" batteries (pull the charge plug and stick it back and it charges for a while again).
I managed to restore my battery to good health by completely discharging it in bootloader mode.
First I completely charged it. When the led went green I pulled the shcarge cable and connected it back again. After doing this a few times it doesn't stay orange so long and then I stopped and left the cable disconnected.
I reset the phone (on full battery) and then I set the unit to boatloader and waited for it to completely discharge. I reset the phone again (on empty battery) and low and behold my trusty "charge now or lose data" warning came back.
BTW I reset the PDA hoping maybe it would store the power levels. I remember that trick from my Palm days where sometimes you had to reset a PDA on full battery to calibrate it.
I charged it back to full capacity and started using the phone as normal. When the battery was empty I got no crash but a friendly warning telling me my battery was going low. Phew.
Will try the same with my other troubled battery over the weekend.
I have the same Issue.But , I think it's about Rom.
and I'm try a lot of ROM version ,only one Version canbe use more than 3 day.
I can't find any reason ,.
discharge in bootloader ,I do it ,But battiery is same time for used.
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..
Click to expand...
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 .
Click to expand...
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.
Click to expand...
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
Greetings all, I was wondering if anyone else has noticed that their battery doesn't charge to full when using the wall charger or USB? I have LiPo chargers from RC cars and I have used one to discharge and fully charge the battery to 1400mah and found that the phone seems to have much better battery life than when charged with wall charger / USB.
When charged with the external ("direct") battery charger, I can get to 4211mv whereas normally with the wall/usb it only goes to 4173mv max. From what I know of LiPo/LiIon batteries, they need to get to their max charge voltage (~4200mv) or so and stay there for some time to get full charge.
I have noticed that my phone has terrible battery life when compared to my Touch HD which used to get 20hrs+ of full use on 3G/HSDPA, same usage pattern with push e-mail and I can't even get 12hrs with the Nexus One before the battery runs right down. And I thought the Touch HD had bad battery life!
Any help / feedback would be most appreciated. Thanks!
It's interesting I see this as today has been a very odd battery day. I woke up and unplugged it at exactly 5am. For 7 minutes I checked e-mails and twitter and it had dropped 3%!!! By 8am I was down to 82% (ride in to work, listening to music for 25 mins, thats about all) I was thinking this was getting silly. It's now 5pm here and I'm still at 61%?!?! So, over the first 3 hours it went 6%ph, since then it's done 2.3%... that's the best I've ever got from it.
Could this be related? It's not really fully charged, even though it shows 100%, drops very quickly and then when it returns to where it perhaps should be (around 80%) it acts as normal?
What is a LiPo charger and how can I use one to charge my Nexus battery?
http://blog.quantifly.com/?p=2
iMAX B6 is what I have been using. I have another heavier duty one but this one is good enough for the battery. I have a generic battery charger thing which I got from China which holds the battery while the other unit charges it. Right now as I write this, my phone has been on for 1hr 25minutes after being charged with the charger, I have used the browser for 10minutes, on 3G, downloading things etc. and it is still on 4211mv and 100% charge.
Curious if this is an issue with the onboard battery microchip, or the radio/firmware. Does anyone know where to source an original replacement battery (non-generic replacement)?
The batteries in these smart phones makes no sense. The other day, I charged the phone overnight using USB, and the next day, I was at 97% after 3.5 hrs. Then, another day, with basically the same usage, I'm down to 85% after 3.5 hrs. No rhyme or reason. I wish someone could explain it.
I also wish someone could make a battery that lasts for 48 hours on normal use
"Drops very quicky"
same here but ive had this 'problems' since stock firmware. its not CM related.
I also noticed that its dropping from 100 to 80ish very fast when starting many apps in the morning for example. Like stopping airplane mode, starting some apps and opening browser. stays at 80ish for some hours then
xPatriicK said:
"Drops very quicky"
same here but ive had this 'problems' since stock firmware. its not CM related.
I also noticed that its dropping from 100 to 80ish very fast when starting many apps in the morning for example. Like stopping airplane mode, starting some apps and opening browser. stays at 80ish for some hours then
Click to expand...
Click to collapse
Yep. That was the same thing with my Pre. It would never stay at 100% for more than a few minutes, and then it would plummet into the 80's, and then it would be okay.
Battery Antics
I purposely left the phone not to charge last night from about 1AM - and I woke up (around 9:30AM) with it at 99% charge still. Used it for a bit and it dropped to 89% and now it's 1:06PM and it dropped to 75% with calls, web browsing and some other stuff. Previous days to this it would be at 75% after just 2-3 hours!
I also noticed that the phone didn't download any e-mails overnight (since there's no "scheduling" for peak/offpeak like in WM I assumed this shouldn't happen?) which may account for the minimal discharge.
All in all very strange, seems like I am not the only one with these problems - maybe I'll try get another battery and see what happens!
The thing about the battery in a smart phone is that it has a micro chip in it, and the phone reads info from it to give us the battery meter(this is true of any phone, actually)... your LiPo charger reads charge in a similar manner, only it doesn't talk with the batteries chip, instead it does it's own thing(I will spare the details)
With this in mind, what you want to do to get the most out of your battery is get the chip in the battery, and in turn the "circuit" it completes with the phone properly calibrated. To do this, you want to run the phone's battery down until it turns itself off. Do a battery pull and let it sit for a little bit (at least 30 seconds, I usually wait several minutes)... then, put the battery back in, and turn the phone on. One of two things will happen, it will either power off before fully booting, or if it does not you will want to use the phone until it powers off again.
At this point, pull the battery again and let it sit out of the phone for a bit again. Then put it back in, and without trying to power the phone on, put it on the charger and leave it on the charger until it is fully charged "green light comes on" plus a couple hours.(best to leave it on the charger overnight) At this point, take it off the charger, and then turn the phone.
This will properly set the low point and the high point for the battery stats. Do not do this a lot, it is bad for a LiIon battery to be "deep cycled", which this comes really close to doing. Ultimately, the phone is not going to charge the battery as high as a LiPo charger will, nor will it discharge it as low, because unlike an RC car's batteries that are used for rapid discharge, these batteries are designed and used in a slow long term discharge.
Thanks, I'll try that myself
Do you run any risk of damaging the battery when charging with a LiPo?
How to Make Your Cell Phone Battery Last Longer when you need it the most
Tips: How to Make Your Cell Phone Battery Last Longer when you need it the most:
1. Always try to drain your battery or wait till its 15% or below then charge your phone. Its very important to turn the phone off before you plug it to charge. This help maximizing your battery charge.
2. Stop searching for a signal. When you are in an area with poor or no signal, your phone will constantly look for a better connection, and will use up all your power doing so.
3. Switch off the vibrate function on your phone, and use just the ring tone instead.
4. Turn off your phone's back light.
5. Avoid using unnecessary features. If you know it will be a while before your phone’s next charge, don’t use the camera or connect to the Internet. Flash photography can drain your battery especially quickly.
6. Keep calls short. This is obvious, but how many times have you heard someone on their mobile phone say, "I think my battery’s dying," and then continue their conversation for several minutes? Sometimes, the dying battery is just an excuse to get off the phone (and a good one, at that), but if you really need to conserve the battery, limit your talk time.
7. Turn off Bluetooth. It will drain your battery very quickly.
8. Same goes for WIFI, GPS, and infrared capabilities, if your phone has these features built in. Keep them off; save more power.
9. Use GSM - Using your phone in 3G / Dual Mode will drain the battery quicker than if you just use GSM mode - have a look at your phones spec and you'll see it will quote two different battery life times - normally 50% more for pure GSM use.
Very Important:
Anyone purchase a new phone. Its best DO NOT USE the phone with the little remaining power the battery has. It is best that you put the battery in the phone and turn off the phone and change for minimum of 5-6 hours.
The 1st charge for the battery is very important for lithium ion battery. Leaving the phone off will give the full maximize charge the battery can take. Normal when phone shows charge complete by integrator light or on the screen means its 95% complete. To complete the 100% charge you need additional 1-2 hours after the full charge integrator show. Having the phone off also help keep the charge. A phone that is on and charging will never get that 100% charge because there is alway a little battery being drained just because the phone is one even if its plugged in to a charger.
If you see your battery is not giving the same performance what it use to. You can try this method at least 3-4 times for 1 week and follow up every other month. Meaning turn the phone off and charge it every night. It is best if you can drain the battery to 15% or less before charging the phone.
nuc70st said:
Tips: How to Make Your Cell Phone Battery Last Longer when you need it the most:
1. Always try to drain your battery or wait till its 15% or below then charge your phone. Its very important to turn the phone off before you plug it to charge. This help maximizing your battery charge.
2. Stop searching for a signal. When you are in an area with poor or no signal, your phone will constantly look for a better connection, and will use up all your power doing so.
3. Switch off the vibrate function on your phone, and use just the ring tone instead.
4. Turn off your phone's back light.
5. Avoid using unnecessary features. If you know it will be a while before your phone’s next charge, don’t use the camera or connect to the Internet. Flash photography can drain your battery especially quickly.
6. Keep calls short. This is obvious, but how many times have you heard someone on their mobile phone say, "I think my battery’s dying," and then continue their conversation for several minutes? Sometimes, the dying battery is just an excuse to get off the phone (and a good one, at that), but if you really need to conserve the battery, limit your talk time.
7. Turn off Bluetooth. It will drain your battery very quickly.
8. Same goes for WIFI, GPS, and infrared capabilities, if your phone has these features built in. Keep them off; save more power.
9. Use GSM - Using your phone in 3G / Dual Mode will drain the battery quicker than if you just use GSM mode - have a look at your phones spec and you'll see it will quote two different battery life times - normally 50% more for pure GSM use.
Click to expand...
Click to collapse
10. Keep the phone off, it'll not drain the battery at all!
So one person says don't let it drop down low very often, the next person says let it drop to 15% all the time...
Personally I've heard not to let it drop low more often these days. The old 'let it decharge regularly' was talked about a lot 4 or 5 years ago... no?
nuc70st said:
Tips: How to Make Your Cell Phone Battery Last Longer when you need it the most:
1. Always try to drain your battery or wait till its 15% or below then charge your phone. Its very important to turn the phone off before you plug it to charge. This help maximizing your battery charge.
2. Stop searching for a signal. When you are in an area with poor or no signal, your phone will constantly look for a better connection, and will use up all your power doing so.
3. Switch off the vibrate function on your phone, and use just the ring tone instead.
4. Turn off your phone's back light.
5. Avoid using unnecessary features. If you know it will be a while before your phone’s next charge, don’t use the camera or connect to the Internet. Flash photography can drain your battery especially quickly.
6. Keep calls short. This is obvious, but how many times have you heard someone on their mobile phone say, "I think my battery’s dying," and then continue their conversation for several minutes? Sometimes, the dying battery is just an excuse to get off the phone (and a good one, at that), but if you really need to conserve the battery, limit your talk time.
7. Turn off Bluetooth. It will drain your battery very quickly.
8. Same goes for WIFI, GPS, and infrared capabilities, if your phone has these features built in. Keep them off; save more power.
9. Use GSM - Using your phone in 3G / Dual Mode will drain the battery quicker than if you just use GSM mode - have a look at your phones spec and you'll see it will quote two different battery life times - normally 50% more for pure GSM use.
Very Important:
Anyone purchase a new phone. Its best DO NOT USE the phone with the little remaining power the battery has. It is best that you put the battery in the phone and turn off the phone and change for minimum of 5-6 hours.
The 1st charge for the battery is very important for lithium ion battery. Leaving the phone off will give the full maximize charge the battery can take. Normal when phone shows charge complete by integrator light or on the screen means its 95% complete. To complete the 100% charge you need additional 1-2 hours after the full charge integrator show. Having the phone off also help keep the charge. A phone that is on and charging will never get that 100% charge because there is alway a little battery being drained just because the phone is one even if its plugged in to a charger.
If you see your battery is not giving the same performance what it use to. You can try this method at least 3-4 times for 1 week and follow up every other month. Meaning turn the phone off and charge it every night. It is best if you can drain the battery to 15% or less before charging the phone.
Click to expand...
Click to collapse
I think you didn't understand a LI-ION battery!!!
1. completely false
2. I've a mobilephone also I wan't to use it!!!
3. Maybe... Have you tested it with a ampere meter?
4. A black display is always a good idea!
5. Why not buying a Nokia 3210 ?
6. Better: Don't use it for call.
7. Correct! (If you don't use a headset)
8. See Pt. 5
9. See Pt. 5
A few facts:
- a new lithium-ion pack does not need cycling through charging and discharging
- Limit the time at which the battery stays at 4.20/cell. Prolonged high voltage promotes corrosion, especially at elevated temperatures.
- 3.92V/cell is the best upper voltage threshold for cobalt-based lithium-ion
- The 1st charge is no different to the 5th or the 50th charge. Stickers instructing to charge the battery for 8 hours or more for the first time may be a leftover from the nickel battery days.
Whole article on: batteryuniversity.com/partone-12.htm (by Cadex Electronic Inc.)
jahmann82 said:
I think you didn't understand a LI-ION battery!!!
1. completely false
2. I've a mobilephone also I wan't to use it!!!
3. Maybe... Have you tested it with a ampere meter?
4. A black display is always a good idea!
5. Why not buying a Nokia 3210 ?
6. Better: Don't use it for call.
7. Correct! (If you don't use a headset)
8. See Pt. 5
9. See Pt. 5
A few facts:
- a new lithium-ion pack does not need cycling through charging and discharging
- Limit the time at which the battery stays at 4.20/cell. Prolonged high voltage promotes corrosion, especially at elevated temperatures.
- 3.92V/cell is the best upper voltage threshold for cobalt-based lithium-ion
- The 1st charge is no different to the 5th or the 50th charge. Stickers instructing to charge the battery for 8 hours or more for the first time may be a leftover from the nickel battery days.
Whole article on: batteryuniversity.com/partone-12.htm (by Cadex Electronic Inc.)
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I second this as well. The tips given by nuc70st is only applicable in the old days with nickel based batteries (Ni-cd and Ni-MH), which for the past 5 years mobile phones have in general stopped using and have shifted to lithium varieties. Nickel Cadium and a smaller extent Nickel Metal Hydride suffer from "memory effect" so it was important to deep cycle the batteries to maintain its capacity.
Lithium batteries in contrast should be treated in the opposite. You should keep it charged up whenever possible, and fast discharging (draining its charge as fast as possible) actually does more harm than good. Most mobile phones don't discharge it fast enough for it to be problem, but plugging a lithium battery in a purpose made discharger is still a no-no.
I dont know if anybody else can try this with their N1 but I have recently noticed that when my battery does its initial.. drop to 95% before you can wonder what happened, I can charge it with the phone on and the green light stays on, implying that the phone is fully charged.
Then I turn the phone off and charge it, and the red light quickly comes on and allows another hour? of charging before the green light will re-appear.
I think i'll be trying leaving my phone on and on charge overnight and then turning it off while I get ready in the morning and don't necessarily need it.
The green light comes on before the battery is fully charged
AndyCr15 said:
So one person says don't let it drop down low very often, the next person says let it drop to 15% all the time...
Personally I've heard not to let it drop low more often these days. The old 'let it decharge regularly' was talked about a lot 4 or 5 years ago... no?
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I'm right and the other guy is dead wrong. Deep cycling was better for nickel metal hydride batteries, because it helped delay the memory effect.
No such issue for Li-ion batteries, plus charging makes Li-ion batteries HOT, which isn't particularly good for the battery. So numerous charges leads to less exposure to prolonged heating.
nuc70st said:
Tips: How to Make Your Cell Phone Battery Last Longer when you need it the most:
1. Always try to drain your battery or wait till its 15% or below then charge your phone. Its very important to turn the phone off before you plug it to charge. This help maximizing your battery charge.
2. Stop searching for a signal. When you are in an area with poor or no signal, your phone will constantly look for a better connection, and will use up all your power doing so.
3. Switch off the vibrate function on your phone, and use just the ring tone instead.
4. Turn off your phone's back light.
5. Avoid using unnecessary features. If you know it will be a while before your phone’s next charge, don’t use the camera or connect to the Internet. Flash photography can drain your battery especially quickly.
6. Keep calls short. This is obvious, but how many times have you heard someone on their mobile phone say, "I think my battery’s dying," and then continue their conversation for several minutes? Sometimes, the dying battery is just an excuse to get off the phone (and a good one, at that), but if you really need to conserve the battery, limit your talk time.
7. Turn off Bluetooth. It will drain your battery very quickly.
8. Same goes for WIFI, GPS, and infrared capabilities, if your phone has these features built in. Keep them off; save more power.
9. Use GSM - Using your phone in 3G / Dual Mode will drain the battery quicker than if you just use GSM mode - have a look at your phones spec and you'll see it will quote two different battery life times - normally 50% more for pure GSM use.
all very good tips, but its just funny that to save battery life we cant use ours phones as they where intended for us to use them. I need dilithium crystals.
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mikesm1234 said:
all very good tips
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Oh dear. Have you read this thread?
No, they are not good tips...
Rusty! said:
The green light comes on before the battery is fully charged
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I noticed that just last night! Are you supposed to keep charging it until its 100% or stop it from charging when the green light turns on?
Cheers,
M
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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which version of WP7 and radio rom are u using ? Presume its a EU HD2
Hello all,
Recently i've been noticing that my GS4 battery is draining too fast, i think that it's time to recalibrate it. Since my phone is not rooted, i have searched for guides on how to recalibrate the battery.. and i found this one:
To calibrate your Android phone battery correctly:
1-First drain your battery down. Let the device switch itself off naturally. You will know if it is completely dead because it won’t switch on again.
2-Place the phone ion charge while it is turned off. Allow it to charge for at the very least 2 hours, if not 4, until the battery meter reads 100%
3-Switch on the phone while the charge is still connected to it. When your phone is on the home screen, leave the charger connected for a further 2 minutes before removing it.
4-Repeat the above steps twice more, always allowing the phone to completely discharge first.
The reason for leaving your charger connected is to allow the configuration files to update with the new, correct charge values. Some of the best ways to avoid battery usage is to make sure all connections are turned off when they are not in use – Wi-Fi, Bluetooth, GPS etc. Make sure your screen locks down in under a minute when not in use and that your screen is not set too bright
My question is.. is it safe to turn on the phone while it is charging? is it safe to turn on the phone when it is plugged to a charger while it is off?
Thank you in advance.
Gab! said:
Hello all,
Recently i've been noticing that my GS4 battery is draining too fast, i think that it's time to recalibrate it. Since my phone is not rooted, i have searched for guides on how to recalibrate the battery.. and i found this one:
To calibrate your Android phone battery correctly:
1-First drain your battery down. Let the device switch itself off naturally. You will know if it is completely dead because it won’t switch on again.
2-Place the phone ion charge while it is turned off. Allow it to charge for at the very least 2 hours, if not 4, until the battery meter reads 100%
3-Switch on the phone while the charge is still connected to it. When your phone is on the home screen, leave the charger connected for a further 2 minutes before removing it.
4-Repeat the above steps twice more, always allowing the phone to completely discharge first.
The reason for leaving your charger connected is to allow the configuration files to update with the new, correct charge values. Some of the best ways to avoid battery usage is to make sure all connections are turned off when they are not in use – Wi-Fi, Bluetooth, GPS etc. Make sure your screen locks down in under a minute when not in use and that your screen is not set too bright
My question is.. is it safe to turn on the phone while it is charging? is it safe to turn on the phone when it is plugged to a charger while it is off?
Thank you in advance.
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Hi
Yes and yes
BTW I do not believe to much in those battery calibration methods , as far as i know a new file is generated each time you switch off and back on
You can charge your phone in any status, on, off, flight mode, playing games etc.It will only affect your charging speed.
As for calibration - I have heard about such thing and try to discharge my battery till some 1-3% and full charge at least once a month. Don't know if this helps. I think also important is the environment temperature and how you discharge the last percent.My suggestion is that last percent must be discharged as slow as possible - with screen locked let it die natural way, with normal usage, very slowly. I and other usually switch all possible things to drain battery faster at this stage. That seems wrong on my personal opinion.
Gab! said:
Hello all,
Recently i've been noticing that my GS4 battery is draining too fast, i think that it's time to recalibrate it. Since my phone is not rooted, i have searched for guides on how to recalibrate the battery.. and i found this one:
To calibrate your Android phone battery correctly:
1-First drain your battery down. Let the device switch itself off naturally. You will know if it is completely dead because it won’t switch on again.
2-Place the phone ion charge while it is turned off. Allow it to charge for at the very least 2 hours, if not 4, until the battery meter reads 100%
3-Switch on the phone while the charge is still connected to it. When your phone is on the home screen, leave the charger connected for a further 2 minutes before removing it.
4-Repeat the above steps twice more, always allowing the phone to completely discharge first.
The reason for leaving your charger connected is to allow the configuration files to update with the new, correct charge values. Some of the best ways to avoid battery usage is to make sure all connections are turned off when they are not in use – Wi-Fi, Bluetooth, GPS etc. Make sure your screen locks down in under a minute when not in use and that your screen is not set too bright
My question is.. is it safe to turn on the phone while it is charging? is it safe to turn on the phone when it is plugged to a charger while it is off?
Thank you in advance.
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Click to collapse
NO NO NO
Draining your battery is BAD!!! Draining it below 0 is the dumbest thing you can do. That damages your battery. Whoever made that "guide" has absolutely no understanding about his battery.
Calibrating is easy.
Charge to 100%. Pull your battery. Put battery back in. Charge again until full when powered off. Volia calibrated.
Though it will probably not help. My guess is that you just need a new battery (if it's no software problem).