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HTC s640 Battery Issues?

Hi Folks,
My s640 seems to have developed an issue with the battery. It will get to about 50% and stay there for most of the day then suddenly I get the low and critical warnings, then off. The warnings then off sequence happens within about 10 seconds of getting the first warning. On one occasion I got the low and critical warnings, but then the phone reported 268% battery remaining.
Is/has anyone else experienced this issue or anything similar? I'm wondering if it is the phone or the battery.
Thanks.

I am having the same trouble.
I'll fully Charge my battery and then disconnect it and us it for about 10 minutes and suddenly it will drop my call, turn off my bluetooth and disable the radio (network), and if I don't plug it in, within 30 seconds it shuts off. If I remove the battery, hold the power button for 5 seconds and the put the battery back in and turn it on then I have my battery shows 90+% free.
I'm not sure if it's the battery or the phone.

have you tried running the battery till it won't turn on the phone. Then charging it up again?
maybe a hard reset may help?

daroota said:
I am having the same trouble.
I'll fully Charge my battery and then disconnect it and us it for about 10 minutes and suddenly it will drop my call, turn off my bluetooth and disable the radio (network), and if I don't plug it in, within 30 seconds it shuts off. If I remove the battery, hold the power button for 5 seconds and the put the battery back in and turn it on then I have my battery shows 90+% free.
I'm not sure if it's the battery or the phone.
Click to expand...
Click to collapse
Yes I too am having this issue since rom upgrade so is a friend, he just purchased new battery from Telus but they shipped wrong one. Will update if new battery resolves his issues. I went throught three phones with brand new battery they all did same thing Battery is not HTC 20 dolllar aftermarket one (just before warranty expired). Have gotten 400 credit for new phone but nothing like this one out there except Touch Pro Diamond and I hear even with new battery that phone battery life is too short to last through day. Get feeling Telus broke something in software with Rom update used to be when phone battery was expiring a red light would blink (opposite of blue tooth light) now it is only notifications from WM that phone battery is critically low and shuts of radio etc. yet you plug phone in and it's charged 10 minutes later makes no sense. Rechargable batteries voltage change with charge the interesting thing when I pull my battery the voltage is the same charged or just after error messages (I have a very expensive True RMS Voltmeter from work that has been calibrated in last year) but without load this isn't an accurate test. Does make me think something is not right and beleive it software related for more see my post in Howrds Forums under phone model.

I am having the same issue after the ROM update, not sure if it's the cause. Already replaced a battery on warranty for not holding charge. But now I have had the phone over a year so telus wants me to buy a battery for $80. I know based on this information i'll be wasting my money.
i want stuff to work for more than a year what the hell is money good for?

any fixes or updates wether the new battery helped??

I replaced the battery on my phone and these odd issue I was having are gone guess we have to face the fact that you need to purchase a replacement once a year hopefully it will last a year my problems start just short of a year.

I just got my new battery from here http://www.longlast-battery.com/productCart/pc/viewPrd.asp?idcategory=0&idproduct=17483
I will post after I get it full charged and try it for a day or two
where did you get yours from?

well the battery didn't even last an hour on the way to work.
#1 it was similar but 2-3mm shorter than the OEM and barely touched the contacts on the phone.
#2 charged overnight ok and said 100% charged then withing 20min it said low battery then died shortly after
#3 would not charge a second time (on 2 of my wall chargers, two usb and 1 car charger) Just the red light would light up. Tried jiggling the battery but nothing not even a flashing red light.
so much for a battery bought from the US. Waiting for RMA

typhoonk said:
well the battery didn't even last an hour on the way to work.
#1 it was similar but 2-3mm shorter than the OEM and barely touched the contacts on the phone.
#2 charged overnight ok and said 100% charged then withing 20min it said low battery then died shortly after
#3 would not charge a second time (on 2 of my wall chargers, two usb and 1 car charger) Just the red light would light up. Tried jiggling the battery but nothing not even a flashing red light.
so much for a battery bought from the US. Waiting for RMA
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Click to collapse
I purchased a battery from E-bay and it would not charge at all. Existing charge in battery was enough for me to know that my issues were battery related after all as phone lasted for quite awhile. Tried charging ebay battery for close to 12 hours no go, so returned it for full refund. Called Telus because my calls in were while I was under warranty still but it had since expired they credited my account for the price of battery over a couple of years (1.5 batteries really) to make up for battery not lasting more than a year...hope that makes sense. Doubt I will buy another HTC with todays battery technology there is no reason one of these batties can't last 2-3 years if taken care of. Just a money grab telus/htc on their part in my opinion.

Gave the battery I got from longlast-battery another try.
the battery is CS-DS640SL 1250mAh 3.7V
I got it to charge by turning off the phone and plugging it into a usb port on my PC. Took about 6 hours to charge to 100%.
Won't charge when phone is on which is weird. Even at 90+% charge.
Lasted a full day without charging. That's a good thing I guess. Even when I restarted, it didn't lose the typical 10% drop in charge the other battery does.
I'm going to discharge it and charge it three times to see if it starts working properly and letting me charge it normally. Was a tip someone gave me. Won't hurt anything, and if it doesn't work I can still send it back.
Curious what you guys think. do you think it's a bad battery and I should just get an exchange, or I should just get my money back, and shell out the $100+ for a Telus battery?

Well the longlast battery test failed badly. Lasted about half a day with minimum calls and data use. No wifi no bluetooth. After it died I took it out and let it sit for a bit as the battery was fairly warm. After I put it back in, it said I had about %40 left. Very odd. And it lasted for another two hours before dying.
Now it's back at the won't charge stage. So I finally got an RMA number, so this one is going back.
Hitting Telus on the way home to pony up for a new battery. Getting the extended one as it's only $20 more. Hopefully this one will last more than a year - then I can get another phone (got to love 3yr retention contracts that end early )

I've created a Facebook group to act as a petition for everyone with the notorious battery life problem.
Join the group here, it's open to everyone:
http://www.facebook.com/group.php?gid=100925126406
Share your experiences dealing with Telus positive or negative ones.. or tell us if you've been able to fix the problem by hacking the device. Anything at all that will help the people still stuck with this phone.

I have done some efforts regarding battery capacity measurement Just lookup this thread: http://forum.xda-developers.com/showthread.php?p=5558383#post5558383

[Q] Did I break my battery??

I flashed weapon onto my g2x and like it...used it for like 5 days,then I was calibrating my battery by charging it fully, using a battery calibration app to reset the stats when it was at 100%, and I drained the battery to 0%.
I was playing a movie when it hit 0%, it showed t-mobile's goodbye screen, but never shut off. I let it sit there and walked away. 30 minutes later t-mobiles goodbye screen was still on the screen, and I removed the battery...put it back in, plugged in the charger, then couldn't get it to turn on. I let it charge for 3 hours (the plug was surely live, it would charge my evo 3d when I tested the charger), but still can't get the phone to do anything!
I'm guessing something went wrong with the battery, so I ordered a replacement...but I can't understand what or why. What do you guys think? I'm a little worried that it was something more than the battery but I won't know till the battery is here in a few days.

gdawson6 said:
I flashed weapon onto my g2x and like it...used it for like 5 days,then I was calibrating my battery by charging it fully, using a battery calibration app to reset the stats when it was at 100%, and I drained the battery to 0%.
I was playing a movie when it hit 0%, it showed t-mobile's goodbye screen, but never shut off. I let it sit there and walked away. 30 minutes later t-mobiles goodbye screen was still on the screen, and I removed the battery...put it back in, plugged in the charger, then couldn't get it to turn on. I let it charge for 3 hours (the plug was surely live, it would charge my evo 3d when I tested the charger), but still can't get the phone to do anything!
I'm guessing something went wrong with the battery, so I ordered a replacement...but I can't understand what or why. What do you guys think? I'm a little worried that it was something more than the battery but I won't know till the battery is here in a few days.
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Click to collapse
It is possible the Battery is fried. Today's batteries should never be drained to 0. There are charge circuit's inside that can be damaged.

solved
taking the battery out and putting it back in didn't work...but it did finally come on once I removed the sim card.
wierd...oh well, glad its back up and running. I saw someone in a comment somewhere say they couldn't get theres to power back on until they removed the sim card...and it worked for whatever reason.

It has been said by a Google developer for android that battery calibration doesn't do anything for the battery.
Battery stats only tell you what's been running and using battery, not anything about the capacity of your battery.
Not sure but I think your battery is just very dead. I suggest to keep trying to charge, but make sure the phone isn't getting too hot.

Here it is.
http://www.xda-developers.com/andro...-battery-stats-does-not-improve-battery-life/

And just for future reference the g2x has issues with turning off due to a dead battery. So if it ever dies like that again just pull the battery immediately. Also sometimes it won't even make it to 0%, I've had mine die at as high as 4%.
Sent from my SGH-T959V using xda premium

GTWalling said:
It is possible the Battery is fried. Today's batteries should never be drained to 0. There are charge circuit's inside that can be damaged.
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Click to collapse
The phone's charge circuit can't be damaged by a "dead" battery, the charge circuit is self-monitoring and protects itself, the phone and the battery.
The battery can be damaged by its voltage being too low or being charged improperly. A cheap battery with no or fake charge and temperature monitoring can overheat and cause damage to itself and the phone.
Cheap external battery chargers, or those which aren't meant for the type of battery being charged, can/will damage the battery. Overheated batteries can catch fire and/or explode.
Men killed by exploding cell phone batteries:
http://www.wired.com/gadgetlab/2009/02/man-killed-by-c/
http://www.wired.com/gadgetlab/2007/07/man-killed-by-e/
Watch this video about a hand wrecked by an exploded iPhone:
http://www.youtube.com/watch?v=L0iEP98ER2w&feature=player_embedded
Another iphone blowed up real good:
http://www.youtube.com/watch?v=zAmURtauN-o&feature=player_embedded
More:
http://www.google.ca/search?sourcei...S_enCA407CA408&q=cell+phone+battery+explosion
http://www.youtube.com/results?sear...157l0l18538l10l10l0l8l8l0l513l881l3-1.0.1l2l0
http://www.youtube.com/results?sear...55069l0l56016l10l7l0l1l0l0l493l1367l3.4-3l6l0

REALLY Dead battery

I wanted an external charger so I could charge my spare battery while I was using my main one (have a momax 1700mah thats a few months old). I got a cheap one on ebay, it wasn't overly impressive, really light and cheap as you might expect. Pretty much nothing in the way of instructions came with it, the light is blue when its plugged in empty, and purple when charging. I put my momax in last night to charge from almost dead, and I took it out before bed and tried it, my phone said 83%. I put my stock back in and left it alone, would charge fully after work today. I did that, eventually the light went to blue so I assumed it was charged, but my phone wont boot with it, not even plugged in, theres nothing. Seems like this cheap charger has killed my battery somehow.
I mean...its a friggin battery, there isn't much you can do in terms of repair, not that I know of. The battery is only a couple months old so there should be warranty, but in the mean time, any suggestions?

Try to use a genuine one so that your phone may not be damaged.

Slept on my Atrix 2!

After a long day of class I pass out and woke up to find that I had slept on top of my phone It was on before I went to sleep and was pretty warm when I grabbed it. Tried to turn it on, which it wouldn't. And when connecting it to a charger it doesn't charge. Taking out the battery and putting it back it gave me no luck either. The only response I get is when I connect it to my laptop in which case a White LED shows in the top right of the screen for a brief moment and the distinguishing sound you hear when you connect something to your computer, but nothing happens.
I did read and found out that the white led shows up because its unable to boot because there's not enough juice to put it in the charging process so someone suggested to get an external charger for the battery in which case i can do, but wanted a 2nd opinion.
Another thing to note is that my phone isn't rooted or anything of that kind of matter. Still in the factory settings in which I first bought it in. Any help and suggestions is appreciated.

Yeah! Charge it up and see if it gets some life.

Charge it in the wall, not in the pc. No matter what. Left the phone there and see what happens in 2hs

Left it in connected to the wall charger for a few hours - no response.

VathaRich said:
Left it in connected to the wall charger for a few hours - no response.
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When I bought my phone it had the same issue. I got it used and the person that sold it to me forgot to remove the battery before shipping.
I tinkered with it forever, and even left it plugged in overnight and it kept the white LED.
I had an external charger from my last phone, so with rubber bands I was able to rig it in there and it got me going.
I have a spare external charger, but with cost and shipping you could get a charger and battery for the same price I imagine. $10 on Ebay.

Had white led light before when I was rooting my Atrix. Just need to get a external battery charger and charge it and try not to let the battery get drained like that again. Guessing your body heat drained all the battery cause the same thing happens to my second battery when I leave it in my pockets.

S7 started turning off, Replaced battery and same thing, Thinks its dead?

Hey guys, As title says, So the story on this thing lol Bought it new I believe 1.5-2 years ago, battery got bad, so this spring in february I replaced the battery my self, I had ordered 2, Both certainly a genuine battery, I had a S7 so I wanted a spare for mine when IT came time. After battery replacement phone was great again, good as new! then as of 3 days ago random shut offs. battery reads 80% shut off, Then I noticed If I left it off for a few hours or all night and turn it on in the am 0%! Tried charging and It's not taking a charge really, It went to 9% and stayed there for ever and was getting hot so I didn't want to risk it. ok so bad battery, this morning I swapped in my OTHER spare new battery, and Let it run up to 100% before turning on for first time, All seemed good! then all the sudden after 6 hours (before it was like every 10 minutes it'd shut off.) It started doing it again, Same thing battery is dead it figures, But it can't be.
Thinking perhaps the board it's self or something just ain't right? :\ Any thing to check or tips/tricks? I tried googling and came up empty handed.

Octanee said:
Hey guys, As title says, So the story on this thing lol Bought it new I believe 1.5-2 years ago, battery got bad, so this spring in february I replaced the battery my self, I had ordered 2, Both certainly a genuine battery, I had a S7 so I wanted a spare for mine when IT came time. After battery replacement phone was great again, good as new! then as of 3 days ago random shut offs. battery reads 80% shut off, Then I noticed If I left it off for a few hours or all night and turn it on in the am 0%! Tried charging and It's not taking a charge really, It went to 9% and stayed there for ever and was getting hot so I didn't want to risk it. ok so bad battery, this morning I swapped in my OTHER spare new battery, and Let it run up to 100% before turning on for first time, All seemed good! then all the sudden after 6 hours (before it was like every 10 minutes it'd shut off.) It started doing it again, Same thing battery is dead it figures, But it can't be.
Thinking perhaps the board it's self or something just ain't right? :\ Any thing to check or tips/tricks? I tried googling and came up empty handed.
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Click to collapse
It's likely the batteries you have are not genuine. Fake copies don't have a control chip which interfaces with the device. Your phone is shutting down to protect itself from overheating and other problems caused by copies.
There are some great copies out there but trust me they're still copies.

cooltt said:
It's likely the batteries you have are not genuine. Fake copies don't have a control chip which interfaces with the device. Your phone is shutting down to protect itself from overheating and other problems caused by copies.
There are some great copies out there but trust me they're still copies.
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Click to collapse
Yeah that's for sure on the copies, I had looked at how to compare what I had VS the fake ones and they seemed to be genuine? The batteries came from 2 seperate sources as well so hard to say, if the first one I put in was a copy then it did last a while but surprised then that my 2nd one never made it more than a few hours and the same issue. But you just never know. Everybody claims your buying a genuine battery but I'd assume the listing prices are tell tale of a fake/copy lol

Monitoring the battery and either the voltage sensor is bad or the battery, it'll chwrge and say it's full but yet voltage goes to 3.4v, then if I plug it in again it'll go up to 4.2v, once I unplug it, it drops of course, I was using a battery burn program and Itll drop from r. 2 to 3.4 right away, I got it to run for 15 mins one time then it dropped off, otherwise another time from 4.2v it dropped to 3.0 then shut off after starting th test in like 20 seconds, reports battery immediately as 17% after re booting.
This battery sat for a while so will try a 3rd fresh battery and hopefully genuine, though I suspect my past 2 were genuine.

Wanted to update this for anybody who may find this thread off google. I got the same replacement battery again Which was the fix, Asked the seller and they said they'd shoot me a new battery, Again whether genuine or not... Well they claim genuine. I let the phone charge to full and Performed the battery draw test by running the 2 apps to bog the phone down and make everything run to 100%. ran like that 0 issues for about 2 hours, Voltage was very stable the whole way through, before It would maybe hold for a few mins then shoot right down from 4.0 to ~3.2V. Even now after a hour It was still well above 3.7V. My old s7 battery was exactly that, sat unused on my shelf for ~2 years because it was mis-placed and even installed it was no good either.