Has the battery gone bad ? - Windows Mobile Development and Hacking General

hi mates, i am using Universal (O2 XDA EXEC) for the last 13 months. I am usin' it with the original ROM, which i got with the device, at the time of purchase. It's about the battery, the normal battery backup is good. However, everytime when my battery goes down to 20%, the device turns off. It doesn't power on without the AC power. It happens everyime at 20%.
So, before goin' in for a new battery, i just wanted to make sure that there is nothin' else, which could be wrong.
Is there anything else, which i should check ?
________________
Wise men talk because they have something to say; fools, because they have to say something.

first of all, i think this is the wrong place to post such a question. bring the phone back and let them repair it (warranty)!!!
regards chief

my o2 xda IIs shuts off at 80% about 2 months ago and that was fine, figuring that it just happens when i keep wlan turned on. lately, at 90% it shuts off. i know its the battery causing this. this phone has been about almost 2years old and i know the battery just needs replacement. i'm thinking of buying one soon.

Yeah, I got O2 XDA IIS. the phone shut down at 40% battery, and there was once it shut down at 60% while WLAN was on (this only happened once - other occassion was ok). I have had my phone for about 2.5 years. I believe this is battery issue...

Thank you, folks..

Related

I-mate PDA2 Short battery life issue.

i have just purchased imate pda2(equivilent to O2 xdaIIi) and with a very minmum use after the full charge all the battery drains in just 8 hours ..Is this the normal battery life or its the fault of battery?
ROM version=1.11.00 WWE
ROM date 01/27/05
Radio Version=1.02.00
Protocol Version=1337.42
ExtROM version =1.11.144 WWE
Battery is PH17C 3.7VDC 1300mAH
I am confused about ROM size my hadware info shows..RAM 128mb Flash size 64mb....
does flash size means ROM?
but there is written 128mb ROM on booklets but it shows 64mb why>?
kindly help :shock:
I just recently bought a PDA2 as well, and experienced the same battery life problem. after running it down to less than 10% battery, then charging it back up to 100% a few times tho, the battery life appears to have strengthened a bit.
although i had a relapse last night, it was on 34% battery, i turned on flight mode, and then put it into standby mode. i woke up 7 hours later to find it on 9% battery! on my old XDA II, it would lose maybe 1% battery overnight with flight mode on. I'm going to keep testing this though.
as for the rom, as far as i know, rom = flash. the pda2's only have 64mb of rom or flash, whereas the xda IIi's have 128mb. as far as i can tell, this is the only hardware difference between the two devices.
hmm.. i just checked out the PDA2 website, and you're right, it says 128mb of rom. i've read elsewhere that it was only 64mb of rom tho, and thats what it says in my device information page as well... and i could have sworn that the above page used to say 64mb of rom..... very strange
omniwolf said:
I just recently bought a PDA2 as well, and experienced the same battery life problem. after running it down to less than 10% battery, then charging it back up to 100% a few times tho, the battery life appears to have strengthened a bit.
although i had a relapse last night, it was on 34% battery, i turned on flight mode, and then put it into standby mode. i woke up 7 hours later to find it on 9% battery! on my old XDA II, it would lose maybe 1% battery overnight with flight mode on. I'm going to keep testing this though.
as for the rom, as far as i know, rom = flash. the pda2's only have 64mb of rom or flash, whereas the xda IIi's have 128mb. as far as i can tell, this is the only hardware difference between the two devices.
hmm.. i just checked out the PDA2 website, and you're right, it says 128mb of rom. i've read elsewhere that it was only 64mb of rom tho, and thats what it says in my device information page as well... and i could have sworn that the above page used to say 64mb of rom..... very strange
Click to expand...
Click to collapse
The perils of assuming the same radio stack works correctly across the globe with all operators!
Case in point - Xda II 1.66 rom worked brilliantly in UK, and sucked the battery dead in 8 hours in Germany. Why? because the german network had different settings for paging the handset
I'd say you've got a valid case to:
- Tell Imate to f*cking fix the problem
- Downgrade the Radio stack to another build and see what happens
:wink:
'scuse me for butting in...
Guys
I've been having really big problems with my battery too on my XDAIIi. You might care to look at the log I kept of the battery over the course of a day here
http://forum.xda-developers.com/viewtopic.php?t=22468&highlight=
Southern_Man said:
omniwolf said:
I just recently bought a PDA2 as well, and experienced the same battery life problem. after running it down to less than 10% battery, then charging it back up to 100% a few times tho, the battery life appears to have strengthened a bit.
although i had a relapse last night, it was on 34% battery, i turned on flight mode, and then put it into standby mode. i woke up 7 hours later to find it on 9% battery! on my old XDA II, it would lose maybe 1% battery overnight with flight mode on. I'm going to keep testing this though.
Click to expand...
Click to collapse
The perils of assuming the same radio stack works correctly across the globe with all operators!
Case in point - Xda II 1.66 rom worked brilliantly in UK, and sucked the battery dead in 8 hours in Germany. Why? because the german network had different settings for paging the handset
I'd say you've got a valid case to:
- Tell Imate to f*cking fix the problem
- Downgrade the Radio stack to another build and see what happens
:wink:
Click to expand...
Click to collapse
well i had flight mode ON, which means the aerial is turned off.. so i don't really see how the operator settings will affect it...?
i checked how i went last night, again turning the phone off (flight mode on), and sleeping for about 8 hours. my battery life had only dropped 3% which is much better, it went from 81% to 78%.
its an interesting thought about the paging settings though, when i finally sort out my login to the i-mate forums, i may have a look around for that.
stevep, yes i remember reading your thread a few days ago.. unfortunately it doesn't seem like you came across any sort of solution..
battery XDAIIi
Hi all
You're right, there was no solution. I had the device replaced three times and the battery twice. I can conclude that it's definitley a feature of the device. I don't what's draining it (nor do o2). I had the problem escalated at o2 and although they were very helpful, they didn't really come up wiuth a solution, which is disappointing! My main issue was mostly about how long it took for o2 to admit it's a problem. The normal 'change this', 'hard reset', deinstal/reinstal everythig' etc etc just seemed to be their way of 'getting off the hook' (sorry o2) and concluding that it must be something that I've installed on the device
I was getting to the point of thinking about reporting it tomTradining Standards here in the UK because 8 hours or less (to me) doesn't make it 'fit for purpose'...but in the end I didn't because it felt that it wasn't a strong enough case to argue. Now I just carry a spare charged up battery
Steve
i work an office job, so i have mine cradled most of the day, but the weekends is where it gets tested. we'll see how it goes this weekend. on the xda II i usually had about 30% battery left on sunday night.. last weekend (the first weekend i had it, i got it the thursday before) it barely lasted one night.
IS THERE ANY SOLLUTION??
So whats the solution? ....This much less battery time does,nt serve the purpose for me ....i always have my nokia handset with me bec pda2 battery goes dead in 6 hours when i am at work...i am seriously thinking to sell PDA2...it would have been better that i should have purchased PDA2k.i post a query to imate technical support they replied that give a hard reset to ur device and see ...but nothing happened..the guy said he is forwarding my query to technical deptt lets see what they say....
In short i am really disappointed after spending so much money what i got?...if the battery time is less pda2 is of no use for me.
The solution
Hi all - After long conversations with O2, I conclude that there is no solution (apart from always carry a spare battery). I'm really disappointed too! More so, because O2 constantly said my PDA was 'not right' and they kept swapping it out for anew one...
Re: The solution
stevep said:
Hi all - After long conversations with O2, I conclude that there is no solution (apart from always carry a spare battery). I'm really disappointed too! More so, because O2 constantly said my PDA was 'not right' and they kept swapping it out for anew one...
Click to expand...
Click to collapse
just a thought, have you turned turbo omode on? because that will definetly suck the battery?
also, turn down the backlight settings....
Battery
Hi SouthernMan
Yep Turbo off and backlight set to minimum (plus all the other tweaks that drain the baterry are 'off' or set to their lowest
right now im hoping they're going to release a new ROM that will magically fix everything.. because i can't see it as being a problem with something we're doing.. it must be the device.
Battery
Hi OmniWolf
I agree 1000% That's what I kept telling O2, but they insisted
1. it was the device (changed it twice, made no difference)
2. it was the battery (changed it three times, made no difference)
3. It was some software I was running (took all progs off one by one, took ages, made no difference
((
S
well hopefully they'll get enough support calls that they start looking at the problem seriously
I REALLY hope so! it's a great device...but I can't get through a business day without having to recharge it. Mainly that's not as problem, but just occasionally, I have to work a day when there's no access to any charging facilities...and if you couple that with going out after work for a few drinks, the PDA is completely dead by the time I get home
I found that mine was draining at a rate of 8-10% per hour
Dear All,
Battery usage time is really one of the big concern for heavy duty user.
But O2 seems don't have any solution for the buyer. Buying a spare battery seems to be the only one solution....
I know you recommended buying a spare, but a more powerful battery that get you through the business day is a better solution in my book!
Hey I saw from Blue Angel thread you guys (Mugen) have battery for IIs.
So.... do you have higher capacity batteries for XDA II and IIi?
From myxda site I think they use the same battery.
think i might invest in sprite backup actually..
A disapointing end with pda2
Atlast after getting no reply from imate customer support(they just said give it a hard reset which had no effect on battery life) i sold my pda2 which had 4 hours of total call time at a loss of 180$...there is no big market for pdas in pakistan.
I was never expecting a well reputed device costing 800$ with such a major flaw... imate and o2 should be questioned in court y they bought a pda in market with a major flaw.

is it... the battery?!?!

I'm at a loss.
A week ago, phone started random resets and looping resets - usually when using a significant resource (i.e. camera, web).
I removed everything, reflashed rom, reflashed the Cingular rom etc. to no avail - same problem.
Today, I'm running the bare bones cingular rom without add ons. Seems like I'm doing fine - battery down to about 88% at 5pm which seems okay (I push mail from the exchange server). I take a picture with the camera and go to send it via email and the phone starts looping resets. I soft reset and I get a low battery message - 12%. I went from 88% to 12% in about two minutes.
Any expert opinions? Is it just the battery or is my phone turning into a brick?
Thank in advance.
Sincerely,
Jonathan
First off how old is the phone? It could be time to get a NEW battery.. these batteries have shelf lifes.. lol.. there days are numbered.
Phone is about 1.5 years old.
Update:
Interesting update:
Powered the phone off to pull the battery and check it out as I am looking for a new battery on ebay.
When I power the phone up, it now says battery is at 67%
- this makes me concerned that there is a hardware problem with the power management system in the phone...
thoughts?
"bump"
Any help, all. I would really appreciate your insight.
I'd start by buying a new battery. 1.5 years is a long time for a rechargable battery.
I am having the EXACT same problem.
I even bought an OEM Sanyo on eBay. No change. Then, I complained to Cingular and they replaced the phone (it took a LOT of complaining).
I put the new battery in the new phone, totally vanilla install. It worked great for a couple of hours, then the problems started happening again.
WTF? New phone, new battery and it's still happening.
Yeah - probably no way any level of complaining is going to score me a new phone from Cingular because of the age. I have a new battery on the way, but I am worried that it might be something with the charging circuit or something. Wish somebody with some expertise would speak up on this...
If you are lucky: they sell extended batteries on eBay. I bought me one for my TMO USA VARIO. The stand-by times are really amazing!
In case you consider to buy an extended one make sure that it comes with the battery door as pictured at the link below!
In general the prices on eBay are very low, so, if you are planning to keep your phone a bit longer you might want to buy 2 or 3 batteries at once? (Saves shipping and I really expect that the batteries will soon not be available any longer since the WIZ is discontinued.)
Link to eBay item:
http://cgi.ebay.com/For-Cingular-81...ryZ15034QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
I had this problem. Looping reboots, might work for 5 minutes but then a constant cycle of reboots. Mine is a years and 2 months old.
I though it was the phone and was ready to ditch it. The battery showed a good charge.
I bought a OEM battery off of eBay for 10 bucks and the phone has not had one issue since.
No question it was the battery in my case.
Excellent. Thanks for the response. New battery was purchased last week and should be here soon, so I'll let you know how that turns out.
Might also take a look at the extended battery - seems like a neat feature, although it looks like it would keep the phone from fitting in my car stand (I use tomtom with it).
I'll post a reply when I find out if it is indeed the battery.
Thanks again.
Its a battery issue.
I had this problem before.
I would charge my phone using some 3rd party cradle and some how it screws my battery up.
for exmaple. The phone would say the battery is fully charged. but when i use it. the phone only lasts 5 mins.
after awhile. not matter how i charge the battery the battery never went to it's full charge. and like you, it keeps looping.
this was an OEM battery that i had for less then a year.
i got a random cheap battery off ebay to test it. and now it works fine.
i threw out the old battery.
UPSATE
UPDATE: It was..... the battery. Easy OEM replacement off ebay for less than 5 bucks. Running like a champ again. Thanks for the insight. Hopefully this helps someone else in the future.
Cheers!
- JB

Universal suddenly shuts down; battery or other problem?

I recently acquired a HTC Universal for dirt cheap, and have found the first problem to explain the low price: Whenever I'm using a "power-hungry" application (TCPMP, Internet via Wi-Fi) it eventually just blacks out. Full shutdown without warning.
When trying to reactivate the unit, it reboots as if after a soft reset.
In fact, if I try to reactivate it too quickly, even the reboot fails.
None of the above happens when on external power.
This leads me to think that it's nothing worse than a battery that's lost its mojo, but since there is no warning about low battery, and when the reboot finishes successfully even SPB says the battery is somewhere around 70%, I want to run this by you guys.
What do you think? Just go get a new battery, or is there something else going on which will make buying a new battery just a waste of money?
I'd say it's the battery, 99% sure.
I'ts gotten old and its voltage breaks down under load. If you have proper equipment and a glimpse of an idea what you're doing you should drain about 300mA from the battery and measure its output voltage.
You'll most likely see it going below 3.0V quickly.
I'm afraid I don't have that equipment, but all I really needed to hear was that it's probably the battery.
Now I can stop thinking about it and just order a new batery.
Unexpected reboot - Apparently bettery issue
Hey Holybear, my device shows exactly same symptom, If possible let us know if bat replacement solved the issue>
Holy Bear said:
I recently acquired a HTC Universal for dirt cheap, and have found the first problem to explain the low price: Whenever I'm using a "power-hungry" application (TCPMP, Internet via Wi-Fi) it eventually just blacks out. Full shutdown without warning.
When trying to reactivate the unit, it reboots as if after a soft reset.
In fact, if I try to reactivate it too quickly, even the reboot fails.
None of the above happens when on external power.
This leads me to think that it's nothing worse than a battery that's lost its mojo, but since there is no warning about low battery, and when the reboot finishes successfully even SPB says the battery is somewhere around 70%, I want to run this by you guys.
What do you think? Just go get a new battery, or is there something else going on which will make buying a new battery just a waste of money?
Click to expand...
Click to collapse
I knew I wasn't the only one withthat problem. I think i've prooved it to be a battery faultt. as if you taake te battery out after it gets to that stage where you just can not get it too complete a boot up without it shuttinng down again
take out battery ,place finer oveer all battery trmminals and plug inn your mainss charger it should now boot up and runn fin off the charger unless your finger slips off the battery terminals. thisshsowws it's the temprature sensor in the battery.
I posted a more in depth reply to a guy in the wm6 threads as wifi heeaating up battery wass shutting off his device as well
@ cyberjak
Hmm, the idea that a temperature sensor in the battery causes this problems is interesting. I'd just expect the device not being cappable of rebooting instantly, because there should be a hysteresis implemented in the battery's protection circuit.
I had the exact same problems and described them elsewhere, but in my case it surely wasn't an issue of temperature.
I'd suggest to take out the battery and wait about an hour for the device and the battery to cool off. Most likely the battery will then take a complete boot but shut down soon after that - without having gotten near to "warm" yet.
If this happens you can be sure that the battery itself is dead without needing to measure anything.
Okay, to tell you what I tried:
I ran the Universal until it spontaneously went dead.
Started bootlaoder to see how much longer it would work on that. Was a bit longer, what with low energy consumption, but soon even that wouldn't stay on for long.
Then decided to try the "old wives' tale" (meaning I don't know whether there's any sense behind it or not) of putting the battery in the freezer for a little while.
When I took it out and let it get back to normal temp, I plugged it in and after a while booted the Universal. It showed 40% battery, lower than it had ever gotten lately.
Recharged for a full day.
Tried TCPMP: went dead after three minutes.
So in my experience the above didn't help battery performance.
Am going to get a new battery in a few days; I'll keep you posted on progress as I try with a fresh battery.
I had the same problem, whenever i did something cpu intensive, it would just black out.
I just bought a new 3100mAh battery. Best thing i ever did. It might be thicker now with the new battery, but it actually feels more comfortable as a phone. Plus the new battery only cost 13 odd quid, so definately well worth it. Oh and it doubles the battery life (3100/1500 = ~2... duh)
Hope that helps.
oh you know wat i have the same problem with my Jasjar and the bigest problem that there is no batteries on market for Jasjars in my country....its looks like im living in Jurassic Century!!!
If you want i can send you a battery xplayer, they're quite cheap here.
Rc-Blob said:
I had the same problem, whenever i did something cpu intensive, it would just black out.
I just bought a new 3100mAh battery. Best thing i ever did. It might be thicker now with the new battery, but it actually feels more comfortable as a phone. Plus the new battery only cost 13 odd quid, so definately well worth it. Oh and it doubles the battery life (3100/1500 = ~2... duh)
Hope that helps.
Click to expand...
Click to collapse
I ordered a regular battery replacement, but maybe I'll add a 3100mAh as well.
I could use it as a media player during long train trips.
Holy Bear said:
Okay, to tell you what I tried:
I ran the Universal until it spontaneously went dead.
Started bootlaoder to see how much longer it would work on that. Was a bit longer, what with low energy consumption, but soon even that wouldn't stay on for long.
Then decided to try the "old wives' tale" (meaning I don't know whether there's any sense behind it or not) of putting the battery in the freezer for a little while.
When I took it out and let it get back to normal temp, I plugged it in and after a while booted the Universal. It showed 40% battery, lower than it had ever gotten lately.
Recharged for a full day.
Click to expand...
Click to collapse
I revived two batteries by intense cycling to work quite well again. They still black out at 20%, but only under extreme load (active gsm connection, active wifi, bluetooth and having to render a webpage).
But you should be able to discharge them below 25% at least. Else they're most certainly "too dead" already. And you should do at least 3-4 cycles.
My guess would be that the freezer finished your battery off. I don't understand how this method should work anyway, as lower temperatures reduce the time affected capacity loss. Actually the best place to store a LiPo or LIo battery is the fridge, charged about half the way.
But I also ordered two 3100mAh batteries. I'm using the Uni as a laptop replacement and the permanent wifi usage together with some cpu load and the backlight kicks the battery's ass quite hard.
In Germany the China 3100mAhs are overpriced and it's hard to get your hands on an external charger, but on Ebay.co.uk there's a seller that offers battery and charger as a bundle for about 15€. This will give me a solid 6000+mAh per day and should be enough to forget about virtually every setting related to power consumption
@ xplayer
If you haven't donw already, take a look at Ebay.com, co.uk etc and look if one of the sellers there will ship to kurdistan. You may be lucky
Rc-Blob said:
If you want i can send you a battery xplayer, they're quite cheap here.
Click to expand...
Click to collapse
Oh Thanx Rc-Blob....bt there is No way even to send me no addresses no posting in my country...am from kurdistan of Iraq...thanks again its looks like u sent me one...bt I even have brother in USA he can't send me...except if some one come from there so i have to wait...thanks buddy...
EvilJogga said:
I revived two batteries by intense cycling to work quite well again. They still black out at 20%, but only under extreme load (active gsm connection, active wifi, bluetooth and having to render a webpage).
But you should be able to discharge them below 25% at least. Else they're most certainly "too dead" already. And you should do at least 3-4 cycles.
My guess would be that the freezer finished your battery off. I don't understand how this method should work anyway, as lower temperatures reduce the time affected capacity loss. Actually the best place to store a LiPo or LIo battery is the fridge, charged about half the way.
But I also ordered two 3100mAh batteries. I'm using the Uni as a laptop replacement and the permanent wifi usage together with some cpu load and the backlight kicks the battery's ass quite hard.
In Germany the China 3100mAhs are overpriced and it's hard to get your hands on an external charger, but on Ebay.co.uk there's a seller that offers battery and charger as a bundle for about 15€. This will give me a solid 6000+mAh per day and should be enough to forget about virtually every setting related to power consumption
@ xplayer
If you haven't donw already, take a look at Ebay.com, co.uk etc and look if one of the sellers there will ship to kurdistan. You may be lucky
Click to expand...
Click to collapse
hhh ok buddy you too for care....but there is realy no way i have to wait tell some one(my brothers friend) come from USA so he can get me one from there....its ok...i can use it yet as a normal mobile...i have some other devices for multimedia right now i can wait there is no any other ways....thanks...
Rc-Blob said:
If you want i can send you a battery xplayer, they're quite cheap here.
Click to expand...
Click to collapse
Thanx for helping the guy,yo folks on xda are the best
Just to give you all the end of the story:
I ordered a regular replacement and a 3200 mAh one, and both have returned my Universal to a well-used life.
Thanks again to everyone helping me out here.
For you guys does the device switch off only when the battery is low, or any time. Cause I have this problem as well, and I was SURE that it wasn't a battery problem until I read this thread. The phone switches off intermittently, sometimes after only 3' talk time right after it had been charging for a full 8 hours! Also, usually if I let it sit there for a few hours I could then turn it back on and it would last a full day, so I knew it wasn't due to low battery.
The overheating theory would explain my problem, as, now that I think about it, all my seemingly-random shutdowns were during radio activity (making or receiving calls, especially when the phone was searching for signal, or wifi, which would almost instantly kill it). Strange that it overheats like this, most phone batteries simply run out of charge faster and faster until they can't hold a charge at all, but mine lasts almost as long as it always lasted even though it's 2 years old - unless I get the shutdown thing of course.
I asked this in another thread, but since this one is full of people who got replacement batteries I'll repeat my question here as well:
How much thicker than the standard battery are the 3100 and the 4200mAh ones?
I also got this problem recently, so I bought a new battery and although it's only a 1600mAh battery it runs great again
hey roodkapje ive got that same problem with my battery for my spv m5000 the bad news is that i cant get that batery in barbados so im all out to see

Extended batt! Please reaD!

So, i bought the official HTC extended battery, i had read before buying it, that after it goes flat, if i took it out, i'd have 50% more power. Today, i tried that, and it was true. So, my question is: Is there a workaround? Or, do i need to take it out everytime it goes flat? It's not a bad thing, but it's kinda annoying. Thanks in advance!
No workaround although I have heard newer ROMS work with it.
xlr8me said:
No workaround although I have heard newer ROMS work with it.
Click to expand...
Click to collapse
dang, that's dissapointing.
oh well, at least it actually does last more than the original one.
thanks!
Is this really the case? I thought - at least n Android - it was fine. How can hTC release this if it's unsupported via ROMs?
Derek0228 said:
So, i bought the official HTC extended battery, i had read before buying it, that after it goes flat, if i took it out, i'd have 50% more power. Today, i tried that, and it was true. So, my question is: Is there a workaround? Or, do i need to take it out everytime it goes flat? It's not a bad thing, but it's kinda annoying. Thanks in advance!
Click to expand...
Click to collapse
I dont get your question. Are you running a stock ROM? If you are then it should work just fine. Even most custom ROMS support it. If you mean you're running and Android ROM then you have to find the kernel that supports the extended battery (usually labeled eb) and you'll have no problem. I have the extended battery and have no issues with it. I'm using Dutty's ROM.
I'm running Energy Rom, and when my phone has no power, or it says it has no more power, i just take the battery out, and bam! 50% more! and when the power finishes again, i take it out and bam! some 28% more! and i do it again, and it gives me some 3% more the next time, and then nothing.
Derek0228 said:
So, i bought the official HTC extended battery, i had read before buying it, that after it goes flat, if i took it out, i'd have 50% more power. Today, i tried that, and it was true. So, my question is: Is there a workaround? Or, do i need to take it out everytime it goes flat? It's not a bad thing, but it's kinda annoying. Thanks in advance!
Click to expand...
Click to collapse
Ah the extended batterys again. (Also posted on Q&A threads.) But here is what I have been told to do when you use an extended battery
It must be an official battery, not a cheap ebay china copy (As the second battery is usualy duff)
As you are aware, when you take battery out of mobile and put it back, its still showing a greater charge. (You see the power has gone up.) OK here is waht we do.
Run down the batt to 15%, take out and put in mobile again. Still greater than 15%. keep doing his until it is 10 to 15%. Now the trick here is to switch off and charge it up via the power point (Not via the computer) and you must charge the battery for at least 12hours.
It has NOT charged when the light is on green, do not be fooled by this. Remember your mobile still thinks its only one battery and not the two that the extender has.
It has only charged up to one battery, hence the green light making you think it is fully charged.
Another thing i was told was to re-flash/Re-set the rom when you first put in the now fully charged double battery.
The rom should now see that there is extra power (Mamps) so now you should find the power numbers go down a lot slower than before.
Thanks to my brother-in-law for this advice. (Steve at R&D Motorola near Basingstoke)
and the techs at Thuraya for the same problem with the extender batt on my sat phone.
russpattaya said:
Ah the extended batterys again. (Also posted on Q&A threads.) But here is what I have been told to do when you use an extended battery
It must be an official battery, not a cheap ebay china copy (As the second battery is usualy duff)
As you are aware, when you take battery out of mobile and put it back, its still showing a greater charge. (You see the power has gone up.) OK here is waht we do.
Run down the batt to 15%, take out and put in mobile again. Still greater than 15%. keep doing his until it is 10 to 15%. Now the trick here is to switch off and charge it up via the power point (Not via the computer) and you must charge the battery for at least 12hours.
It has NOT charged when the light is on green, do not be fooled by this. Remember your mobile still thinks its only one battery and not the two that the extender has.
It has only charged up to one battery, hence the green light making you think it is fully charged.
Another thing i was told was to re-flash/Re-set the rom when you first put in the now fully charged double battery.
The rom should now see that there is extra power (Mamps) so now you should find the power numbers go down a lot slower than before.
Thanks to my brother-in-law for this advice. (Steve at R&D Motorola near Basingstoke)
and the techs at Thuraya for the same problem with the extender batt on my sat phone.
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Click to collapse
Ok, I'll try to do that!

Battery drops from 30 to 0 in minutes

Hello,
I have a problem with battery, it drains normally until it reaches 40 or 30 percent, after that it suddenly start dropping rapidly until it shuts off in just a few minutes and acts like dead. I think this started happening after MM update, I've found several answers online but none of them is from an active Note 4 user but from tech specialist, suggesting it might be both a battery problem or a software problem too. Also, some people state that a new battery solved the problem, but also many of them bought the new OEM battery but the problem still exists even with the new battery.
Does any of the users on xda have the same issue after MM? I don't want to waste money for a new battery if it's not a battery problem. And again, I dont know if and when will Samsung release an update for this kind of bug if its a software thing... I would like to know if I'm alone with this and hear some thoughts on buying a new battery or no?
ljubimci said:
Hello,
I have a problem with battery, it drains normally until it reaches 40 or 30 percent, after that it suddenly start dropping rapidly until it shuts off in just a few minutes and acts like dead. I think this started happening after MM update, I've found several answers online but none of them is from an active Note 4 user but from tech specialist, suggesting it might be both a battery problem or a software problem too. Also, some people state that a new battery solved the problem, but also many of them bought the new OEM battery but the problem still exists even with the new battery.
Does any of the users on xda have the same issue after MM? I don't want to waste money for a new battery if it's not a battery problem. And again, I dont know if and when will Samsung release an update for this kind of bug if its a software thing... I would like to know if I'm alone with this and hear some thoughts on buying a new battery or no?
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Click to collapse
It's your battery!
Your battery has deteriorated to a point that it only hold around 70% of its original capacity.
I have 4 original batteries which 2 of them are new & 2 of them are old, deteriorated ones.
One of them only holds around 70% like yours & one of them holds around 90%.
The new ones.....they works perfectly.
They holds around 99%.
Remember that lithium batteries deteriorates through time whether you use it or not.
Thanks for your opinion.
Once it also happened that my battery level was showing 50% and in the middle of browsing, my display went black, touch keys working and display is completely black. Even after a couple of restarts and cache wipe from recovery it remained black after booting, while the screen was working properly on the boot and showing samsung logos and all. I assumed there's a voltage problem, but I still was not sure is it a defective battery or system not reading the level of it properly. Never happened before with any of my previous Samsungs.
I've got almost same problem as @ljubimci.
The only problem is that I bought new battery (from samsung shop, 100% original not fake) and it dies even faster then my old one
The bigest drops are when i use high demanding aps, especially camera (4k recording) then it can drop from 60-70% to 0 in "0 minutes". This started to happen to me on MM, so i downgraded to LP (5.1.1) Nothing changed... And at the end i've changed my ROM to stock, unrooted 4.4.4 (ANK4). Problem still existing End the last biggest problem of them all is that i've lost somwhere my receipt, so i can't give samsung my battery back ;-(
I know that to some people changing ROM's help, to some new battery help, and it looks like to me only xda can help Is there a possibilty that new battery is damaged, or maybe there are any kind of fixes?
MarcinMilosz13 said:
I've got almost same problem as @ljubimci.
The only problem is that I bought new battery (from samsung shop, 100% original not fake) and it dies even faster then my old one
The bigest drops are when i use high demanding aps, especially camera (4k recording) then it can drop from 60-70% to 0 in "0 minutes". This started to happen to me on MM, so i downgraded to LP (5.1.1) Nothing changed... And at the end i've changed my ROM to stock, unrooted 4.4.4 (ANK4). Problem still existing End the last biggest problem of them all is that i've lost somwhere my receipt, so i can't give samsung my battery back ;-(
I know that to some people changing ROM's help, to some new battery help, and it looks like to me only xda can help Is there a possibilty that new battery is damaged, or maybe there are any kind of fixes?
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I think that you bought a faulty battery

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