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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
Click to expand...
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

Battery Indicator at 0%!

I purchased an unlocked Treo 750 off ebay the other day, I received it in the mail yesterday. THe battery indicator says 0%full and has the exclamation mark on it. It's been like this since yesterday and I've charged it overnight. I'm sure the battery has charge because if it was at 0 it would have died through the night and I've upgraded it to Windows Mobile 6. I"m trying to put 6.1 on there but the PC way won't let me because it thinks the battery is below 50% and i tried the bypass through the bootloader but it says the file is corrupted after 7%. Anway, anybody know how i can fix this battery indicator problem? I've tried installing other battery utilities but they all read 0%!

I have the same problem
I got a refurb 750 last week at the AT&T service center as a warranty replacement. The first few days I noticed that when the phone was plugged in to charge, sometimes it would go up to 100% and seem to discharge normally. Other times it would appear to discharge really quickly and when I would plug it in the charge % would keep going down. Finally last night it went down to 0% even when it was plugged in and it gave me warnings and finally powered off. I have an extra battery (OEM) and extra charger so I put in a battery that I know was 100% charged and it still showed 0%, but this time it never gave warning notifications and it never turned off. Now the indicator just stays at 0% with either battery whether it is plugged into a charger or not. I did a hard-reset just to see if maybe something I installed is interfering with the indicator but even after that it still shows 0% with either battery. It works fine and I'm guessing it will turn off at some point when the battery actually dies, but this is just

Had the same problem
hi,
The problem is the battery.
I had the same problem with my treo after purchasing it from eBay... (I wonder if it's the same store)
I asked the seller to send another battery and he did, now it's OK.
My advice to you is to contact the seller, if you haven't given him a feedback, don't do it until you get a new battery from him.
Good Luck

yeah, i believe it's the battery also. The battery it came with was a 1600mAh and I found out the phone shipped with a 1200mAh. I ordered my own though...only 8 bux...should be here in a day or two

Solution found!
The solution to my problem was the battery. Like I stated in my previous post....the phone came with a 1600mAh battery when i bought it from ebay. The ATT 750 shipped with a 1200mAh battery and the 1600mAh was made for the 755 and another model i don't recall. Once I placed the 1200mAh battery in the phone, it showed the correct percentage and is charging with the battery light on (which wasn't happening before). So I'm not sure if there is different circuitry in these two batteries that caused the conflict but my problem seems to be solved.

[Q] ipaq hx4700 replacement battery problems.

Does anyone know what to do when battery says its 0% charged even after it has been fully chaged(the charge led is solid)
I have this weird problem with 2000 mA replacement batteries for the hx4700 (The original one is 1800 mA).
The thing is that both replacement batteries now report 0% to the device even after they have been charged and the amber light comes solid, indicating that the battery is charged.
First battery "died" few monts ago about a week after I charged it for the first time, that happened the day after when I took it out so I can charge the old original one, the new battery had 75% left, so I didn't want to charge that one. The next day after I used up the old battery, (which is still working fine, except that it keeps dying on around 20% power left for years now, because the voltage drops under 3.5V) I replaced it with that new battery which was supposed to have 75% of power left, but it reported 0% so the device died, so I charged it over night, the amber light was solid, but the pocket pc went with critical battery level and CF/SD card removal bull**** and turned off shortly after that, since the circuit that is in the battery reports 0%, no matter what I do, I tried cleaning contacts, tightening the cover, took the battery apart and there was no visible damage and nothing. Then I throught it must be because I accidentaly dropped the battery on the floor (it didn't sound very good), so I just out that one aside and used the another battery.
I have used the another for about a month, charged it only when the battery was actually under 20% or dead, didn't even take it out. Today the battery reported 0% just like that another one and it was fully charged. Also I'm sure its the battery not the pocket pc, I have two hx4700 the old one I have been using for 6 years and the new one that I have just assembled with parts I bought from ipaq repair a month ago, the old battery still works fine and its reporting the charge correctly in both devices and the new ones are both charged, but reporting 0%.
I worked around this problem, by disabling this driver in registry HKLM\Drivers\BuiltIn\BatteryIF\Dll
I chaged the value from "battery.dll" to "battery.dllx" so the driver doesn't work and the battery levels are unknown to the device.
The battery runs fine for hours, like it did before, meaning there is nothing wrong with the battery cells, but with the little circuit, that is inside of the battery and that its annoying, because I don't know the level, can't tell when my ipaq will shut off.
Has this ever happened to anyone? Is there any way to get the battery to work again, without disabling the driver? Should I try replacing the cells of original battery with good cells from those bad batteries? I'm really frustrated how the original battery doesn't have the problem after many years of usage and the replacements have issues after few weeks!

[Q] Question on Battery charging and temps

Hi i bought a used sensation of ebay from a reputable seller and it arrived the other day. The two main problems i've been having is also the battery taking long to charge and the heating issue.
Firstly im not sure if the heating issue occurs on stock rom as i was not on it very long but on any custom JB rom the Bottom part of the phone gets very hot very quickly. I used a battery monitor and it tells me its the battery temp that's going up but when i pop out the back cover it seems to be coming from right at the bottom under where the micro sd card is. However i think i have kind of solved this by flashing the Inspiration 1.01 ICS 4.04 rom with bricked Kernel. Now the phone only reaches a max of abut 40.5 degrees and the heat is spread around the whole back case rather than one spot.
Secondly the battery seems to be the big problem here. The phone didnt come with a charger but it did come with a USB cable to charge with. The problem is when i plug it into charge it takes long time to charge up. I used a battery monitoring app and the results are quite weird. When i plug it into charge it starts of drawing about 300ma of charge but after a while especially when it gets to around 30% battery the amount of power the battery is absorbing is around 70ma some times even as low as 40.
I have tried this with a Motorola charger as-well which is from a Motorola defy mini which had a higher Mah battery and the same thing happens.
Bearing in mind its a used phone the battery is probably quite old shall i try my luck with a new official replacement HTC battery or shall i try a new HTC Charger first?
Quick Update:
i took out the battery and then put it back in again and turned on the device and now the phone is reporting 65% when it was only at 47% before i turned it off. Secondly onthe battery contacts there seems to be a darker colour of gold where the pins actually meet which looks like a burnt contact but im not too sure.

I highly suggest you buy an Anker battery instead of HTC official one. If you've been loading battery with USB cable from another device (PC for example); it will load slowly!
About the battery percentage problem; I think this is a known problem on HTC Devices. It should show pretty accurately after a little while after restart.
I myself have the original battery, and I have the darker marks there too. Don't worry about those.. Because all you need is the Anker 1900mAh.

Thanks for your suggestion i have done a bit of research on the anker battery and it definitely seems like a must have not only for the better battery life but it apparently runs alot cooler than the stock battery aswell. Only £21 for a pack of 2 and a travel charger on amazon aswell!
Also shall i get a HTC charger or should i be fine with the Anker travel charger?

Anushan said:
Thanks for your suggestion i have done a bit of research on the anker battery and it definitely seems like a must have not only for the better battery life but it apparently runs alot cooler than the stock battery aswell. Only £21 for a pack of 2 and a travel charger on amazon aswell!
Also shall i get a HTC charger or should i be fine with the Anker travel charger?
Click to expand...
Click to collapse
I don't know, but I am pretty sure both chargers will be just fine.

Awesome ordered one now should be here in a few days! Thanks for your help

[Q] Does hot swapping batteries kill their life over time?

When I first got my Galaxy S3 (Verizon) the OEM battery lasted at least a good 9 or 10 hours, usually plenty to last the day. But I wanted more than that so I got a pack of 2x QCell 2300mAh batteries for cheap on amazon, with one of the wall chargers that you pop the battery into. That was July of last year and I promptly lost one of the batts at school, so in May of this year I got another pack of 2 batts, this time EZOPower, 2100mAh.
Both brands worked pretty well while I had them and I would generally just start the day taking my GS3 off the charger and putting the extra battery in my pocket, and at ~8pm or so I'd switch them out and have more than enough for the rest of the day, and some for the next day if I didn't make it home for some reason that night.
But recently that time to switch has been creeping down earlier and earlier, and lately I've noticed I wake up to the battery icon showing the circle but no percentage (just switched from AOSP to Pacrom, dunno if that makes a difference) and when I take it off it's about 95%. When I switch batts, which is now at about 2 or 3pm if I wake up at 10, the second one (coming off the cheap battery-only wall charger) is at 75% or thereabouts and each lasts less than 5 hours.
Attached are my stats from the other day. I keep all my radios on all day usually but lately I've been having to selectively put it on airplane mode whenever I can afford to, if I want to have enough juice to last through the evening. This sucks. I know batteries die over time but I've literally had these ones for a few months and they're terrible already. Is it because of my hot swapping habits? Does that drive down the battery life over time, or is it something to do with how android pegs the amount of juice left on each battery? Is there a way to wipe the battery stats, or would that even help? There used to be an option for it in CWM but I looked today and I suppose it's gone. I'm not sure what I'm doing wrong but I've never had battery life this bad on any phone.
tl;dr bought a pair of non-OEM batteries with a wall charger, been hot-swapping them for more power throughout the day, but in just a few months their life is approaching nil. What am I doing wrong?

Bump. Anyone knowledgeable on this? I'm pretty sure it could apply to just about any phone and I know plenty of other people do the same thing I do with these battery pairs on Amazon so this would be useful for progeny.

Do you leave them in the charger until you need them? Usually, the longer a battery charges while it's fully charged, the more the total charge will diminish. So, the longer you keep it charging more than it needs to, the faster the battery dies out. Also, when you get a new rechargeable battery, or even a new phone or tablet with a rechargeable battery in it, the first thing you should do is use it till it's drained. Don't immediately plug it in to the charger. Keep in mind, though, that no matter what you do your batteries will diminish. Cheaply made batteries will diminish faster than higher quality ones, so that may attribute to how fast your batteries are dieing.
I could be wrong, though.

I actually do keep it on the charger long after it's charged. And I have heard that before - but don't most chargers have a built in feature that cuts off the current once the battery is fully charged?
Anyway I'm not sure that's the sole reason for the batteries being so ****ty. Although idk, I also could be wrong, lol.