Develop Bugs

Do you have a 3500mah battery? What is the best way you have found to charge it?

I bought a 3500mah extended battery about a week ago. When I got it, I turned off the evo, inserted the extended battery, and charged the device while powered off for approximately 8 hours. I did this for the first few days. Each subsequent charge, I plug the phone in, power it on, and leave it plugged in for approximately 8-9 hours with the Savaged Zen 2.2.1 SBC CFS kernel.
During this period, I was able to get about 12-14 hours of battery under heavy, almost constant usage. With light usage (texts/twitter/trillian) I was able to pull about 40 hours.
In the last few days however, my battery life has halved. It is still better than the stock battery, but not by much. I am able to pull in around 6 hours of heavy/constant usage before the battery dies. Has anyone experienced this? I've looked at all the tips and tricks and don't see anything that specifically addresses how to charge the bigger battery. I was under the impression that 8 hours with an SBC kernel would fill the battery completely.
Should I be charging the battery with the phone off?
PS: I have tried wiping the battery stats and that has not seemed to help.

I personally use http://electronics.pickegg.com/Elec...-for-T7373-Touch-Pro2-6341706512982200005.JPG
It's SOOO MUCH BETTER on the battery! Plus there's never a chance you'll pull it off the charger before it is finished. Just swap between your normal battery and the 3500 back and fourth for the best results. But everyone knows that our phones won't charge the batteries correctly.
A simple search for t7373 battery charger will take you to places to buy this at. DO NOT OVERPAY FOR IT! I got mine in a 20 buck package. got 2 batteries, this thing, 2 screen covers, case, and so on. 3 clear cases. lol bunch of stuff. on ebay.

GreenTea420 said:
I bought a 3500mah extended battery about a week ago. When I got it, I turned off the evo, inserted the extended battery, and charged the device while powered off for approximately 8 hours. I did this for the first few days. Each subsequent charge, I plug the phone in, power it on, and leave it plugged in for approximately 8-9 hours with the Savaged Zen 2.2.1 SBC CFS kernel.
During this period, I was able to get about 12-14 hours of battery under heavy, almost constant usage. With light usage (texts/twitter/trillian) I was able to pull about 40 hours.
In the last few days however, my battery life has halved. It is still better than the stock battery, but not by much. I am able to pull in around 6 hours of heavy/constant usage before the battery dies. Has anyone experienced this? I've looked at all the tips and tricks and don't see anything that specifically addresses how to charge the bigger battery. I was under the impression that 8 hours with an SBC kernel would fill the battery completely.
Should I be charging the battery with the phone off?
PS: I have tried wiping the battery stats and that has not seemed to help.
Click to expand...
Click to collapse
try reconditioning the battery, charge until full(green light) the unplug and after light goes out plug it in again, repete until you get the orange charging light then let it charge fully(green charged lite). see if that helps

dased14 said:
try reconditioning the battery, charge until full(green light) the unplug and after light goes out plug it in again, repete until you get the orange charging light then let it charge fully(green charged lite). see if that helps
Click to expand...
Click to collapse
but all that's doing is overcharging it. The average person doesn't have that much time to waste. lol plus the only way it works is if you do it on a daily basis. However, the funny thing is HTC/Sprint actually posted that as an official fix. HAHAHA! It's really just a trick to get the not so smart people to do it and shut up. lol! It's not conditioning it. wait until battery is almost empty then swap battery and let it charge outside of phone. then put back in. ;-)
edit. just remembered. wasn't people having issues fully charging these 3500s? I'm almost sure they were. yeah. the only way to charge them fully is actually outside the unit! I COMPLETELY forgot about that! Did HTC ever fix that issue? I could be wrong. so need an expert in here to give a second opinion. thanks lol

runcool said:
but all that's doing is overcharging it. The average person doesn't have that much time to waste. lol plus the only way it works is if you do it on a daily basis. However, the funny thing is HTC/Sprint actually posted that as an official fix. HAHAHA! It's really just a trick to get the not so smart people to do it and shut up. lol! It's not conditioning it. wait until battery is almost empty then swap battery and let it charge outside of phone. then put back in. ;-)
edit. just remembered. wasn't people having issues fully charging these 3500s? I'm almost sure they were. yeah. the only way to charge them fully is actually outside the unit! I COMPLETELY forgot about that! Did HTC ever fix that issue? I could be wrong. so need an expert in here to give a second opinion. thanks lol
Click to expand...
Click to collapse
so you think its better to carry and swap out batteries and reboot everytime plus buy an extra charger. no thanks, i'll do the not for smart people every once in awhile.
edit: dont know havent heard about any issues not fully charging 3500, or if it is better to use stand alone battery charger

charge it however you like.. I see no difference in results no matter how you do it.. the results in life completely depends on use and how much stuff you have on.. Getting in the habit of turning data off and sync, bluetooth, gps etc is the best way to extend battery life. Charging it full is full.. It doesn't make any sense whatsoever to "recondition" it.. when you fill something up.. how does it get "more full" than full.. logic tells you it's complete bs.. unless you want to believe it then I'm not here to convince you of what is and isn't.. Use the system settings toggles to turn your stuff off.. data and sync are the biggest killers.. You'll still get calls and messages.. just turn it on when you actually want to use your browser.. sittin in your pocket is just wasting precious battery..

Thanks for the input. I'm going to hold off on buying a charger and attempt to charge it as suggested in a couple of these posts. If that doesn't work, I'll invest in the external charger and report back.

GreenTea, any updates on this? I just bought the 3500 and an external charger (why not for $5 a piece). I'm wondering if there's any issues charging inside the phone and whether or not I need to wipe batt stats.

I know this is an old issue, but maybe I can add some input:
I have a Seidio 3500mAh battery I use for my Evo 4G (used it in the my HTC Hero first, then in my Evo 4G). I can get roughly four to five days with little use out of the battery (I'm using CM7.1 right now)...until I turn on 4G.
Once I turn on 4G, I may get eight to ten hours out of it with light use.
What you may want to do is keep the 4G radio off until you need it...this hopefully will improve battery performance.
GreenTea420 said:
I bought a 3500mah extended battery about a week ago. When I got it, I turned off the evo, inserted the extended battery, and charged the device while powered off for approximately 8 hours. I did this for the first few days. Each subsequent charge, I plug the phone in, power it on, and leave it plugged in for approximately 8-9 hours with the Savaged Zen 2.2.1 SBC CFS kernel.
During this period, I was able to get about 12-14 hours of battery under heavy, almost constant usage. With light usage (texts/twitter/trillian) I was able to pull about 40 hours.
In the last few days however, my battery life has halved. It is still better than the stock battery, but not by much. I am able to pull in around 6 hours of heavy/constant usage before the battery dies. Has anyone experienced this? I've looked at all the tips and tricks and don't see anything that specifically addresses how to charge the bigger battery. I was under the impression that 8 hours with an SBC kernel would fill the battery completely.
Should I be charging the battery with the phone off?
PS: I have tried wiping the battery stats and that has not seemed to help.
Click to expand...
Click to collapse

You need to download BATTERY MONITOR WIDGET. Put the widget on your home screen. Monitor voltage while charging. Full is 4200mV. Anything less is not full. Recently, i can not get it past 4180mV. Sometimes, I charge overnight with phone off, then plug into my car charger going to work with phone on to try and top it off.
Calibration nor conditioning will fix the issue. It is the kernels and they just are not right yet for gingerbread.
Sent from my PC36100 using XDA App

With moderate to heavy use I'll be able to pull in 12-15 hours on a full charge with my 3500 mah non-seido battery. Light usage will net me about 40-48 hours. SBC seems to give a couple more hours if the phone is plugged in and turned on during charging. I live in an area without 4G, so I cannot respond to 4G battery use. I've heard it is a battery killer though.

Charging problem! slow or no charge..

ok, over the last week or so ive had this issue, gradually getting worse...
my battery will charge to around 40-45% and then charging will slow right down.
two hours later, it will be on around 50% if im lucky, and about 3 more further hours before i hit 60% (this is some of the time, other times, it just remains on its current charge%)
if i leave it overnight for about 10hours or so, highest it goes to now is about 73%, but this is rare, usually 45-50%ish.
ive tested with htc ac wall charger, htc usb, blackberry charger, car charger and a random microusb wallcharger. all have same issue.
when tested with two friends desire hd's on different days, my battery charged perfectly, and at the normal gradient speed over the % range. and my phone reads it correctly at the 100%-98% when back in my phone after change back.
i thought it was down to my phone, just dont know if its rom or hardware. shud i factory restore, or claim on insurance?
i have another issue here...http://forum.xda-developers.com/showthread.php?p=18480603&posted=1#post18480603
which also applies to the question of restore or insurance...
thanks

What Rom are you using, i am using runny 2.2 only 62% charge in 6 hours
9 hours later on battery only upto 68% i have amazing battery life now

i'm using runny 2.2.....left it on charge for 2 hours with phone on, but wifi and everything off and it had only gone up 2% ! !
Turned phone off and plugged in charger, 30 mins later, only went up 1% ! !
72% charge at this point.
So took it off charge, put it in my pocket, went upstairs to bed, turned it on to set alarm and it said 100% on battery....weird!!
matt

Lol this is an issue with calibration. The battery is charging but the software doesnt report it.
You have to charge the phone for as long as possible so you know it is on 100% whether the software says it or not, go into CWM, wipe the battery stats and then let the battery drain fully until it shuts down by itself. Then plug it in and leave it until you know for certain it is at 100%. If the green light comes on leave it for an additional half an hour. Then it will be fixed.

ive only recently got this handset, as last one was replaced on insurance a month or so ago, and its runuing on stock rom with latest updates....?

[Q] Gnex GSM: Do I have a phone or battery fault?

I bought my Gnex from Handtec at the end of November. I have been very happy with it Until 2 weeks ago. Battery life has not been great but has lasted 16+ hours each day and I always charge overnight so this has not been a problem to me.
I take phone off charge at 7am. A couple of weeks ago I started to notice that instead of 50% at 7pm it was showing only 20 to 30% charge.
I bought BetterBatteryStats which showed no WaveLocks.
I started to freeze apps using Titanium Backup.
The battery life did not improve. I noticed the phone was getting noticeably hot to the side of the camera and charges were taking much longer. Instead of 3 hours it was taking longer than 7 hours.
Last weekend I noticed a drop of 70% in 3 hours on 2 occasions.
So I decided to wipe the phone and install AOKP build 15 with Franco kernel 10. I did not re-install aps. I charged he phone after install which took all night and then reset the battery stats.
The phone has continued to be hot and discharge very quickly. Charging is very slow. If the phone is off - charging appears to be even slower or not take place at all.
My Gnex is now fully discharging in less than 5 hours when idle in flight mode and is always very warm without any use.
I have been using a Samsung galaxy s2 wall charger.
Is this likely to be a faulty battery or phone hardware fault.
Any suggestions for next steps or is it a Samsung repair job.
Thanks
Mke

well, whichever it is, it sounds like a hardware problem that should be warrantied. i would flash it to stock and get it repaired by samsung, or see if the place you bought it will take it back

I get a similar problem but i return it back to vodafone 2 days ago and now waiting for the results, i returned it a week ago and they only give me a new battery to see if that will solved the problem but nope it persist, now they too it for either repair or replace ....

mike_m said:
I bought my Gnex from Handtec at the end of November. I have been very happy with it Until 2 weeks ago. Battery life has not been great but has lasted 16+ hours each day and I always charge overnight so this has not been a problem to me.
I take phone off charge at 7am. A couple of weeks ago I started to notice that instead of 50% at 7pm it was showing only 20 to 30% charge.
I bought BetterBatteryStats which showed no WaveLocks.
I started to freeze apps using Titanium Backup.
The battery life did not improve. I noticed the phone was getting noticeably hot to the side of the camera and charges were taking much longer. Instead of 3 hours it was taking longer than 7 hours.
Last weekend I noticed a drop of 70% in 3 hours on 2 occasions.
So I decided to wipe the phone and install AOKP build 15 with Franco kernel 10. I did not re-install aps. I charged he phone after install which took all night and then reset the battery stats.
The phone has continued to be hot and discharge very quickly. Charging is very slow. If the phone is off - charging appears to be even slower or not take place at all.
My Gnex is now fully discharging in less than 5 hours when idle in flight mode and is always very warm without any use.
I have been using a Samsung galaxy s2 wall charger.
Is this likely to be a faulty battery or phone hardware fault.
Any suggestions for next steps or is it a Samsung repair job.
Thanks
Mke
Click to expand...
Click to collapse
I am on the same build and recently used francos kernel. At night the phone would drop 20-30% of battery on airplane mode. Installed the apex build 5 kernel and all the battery nonsense stopped straight away. It seems to be a great kernel especially with AOKP B15.
Hope that helps.

Seidio Extended Battery Charging Problem

Hey Guys,
So i just recently bought the Seidio Extended Battery 3500mah for my HTC EVO 4G. I was happy to know that I'd have battery power all day until I noticed something strange happening when it was charging.
The charging light would be on but the battery charge percentage would go up and down. It would be on its way up for a period of time, then I'd come back a little later and the percentage would be down. This is a horrible surprise to know that this wonder battery isn't living up to its name.
The phone is rooted and I've tried putting a new ROM on and it still hasnt fixed the problem.
If anyone has experienced this problem or knows of a good ROM/Kernel combo it would be greatly appreciated to get all of your advice.
Thanks guys.

I have the same battery, and I've noticed the battery does behave differently on different roms. With Sense-based roms, the battery doesn't fully charge in trickle mode (after unplugging, quickly drops from 99% to about 90% in a few minutes). Also, sometimes after switching from the extended battery to the stock battery or vice-versa, the battery appears to drop 50% or more unless I wipe the battery stats in recovery, and then it reports the correct charge level.
I don't have any of the above issues with aosp-based roms such as cyanogenmod.

The EVO will NOT fully charge a 3500 battery without a SBC kernel.
Sent from my PC36100 using XDA App

Seido external battery charger...works like a champ and it does take awhile to charge up the 3500 battery...at least 5-7 hours if you drain it down to 10%. I do notice when I use the USB charger it charges faster but will not last nearly as long.

Get a wall charger!

I have had a wall charger and extra batteries since the first week I owned my Evo. Look on Amazon and Ebay.

I've been running mine for about 16 months on the *stock* rom, didn't go through any of the "special" break-in procedures - just started using it normally from the first charge and I still get amazing usage times after almost a year and a half. Are you using the stock HTC charger?

Phone dies now around 10% ?

Very odd ever since the phone died since it was really cold out ( i left it in car for a few seconds and looked at my phone and it was dead ) its been shuting off or dieing around 10% left but drains normally. but can still turn it back on once its plugged into a wall charger. so im not sure on what to do cause i mean i only had it for a year now.

it happens with mine too, 2-3 weeks ago.
I had 40%+ and after few sec, was dead too.
I turn it on with 1% battery lol

was thinking of letting it die once then letting it cable charge not fast charge saw a video for an older phone to do that with some call code to reset the battery gauge

Xnitro67 said:
was thinking of letting it die once then letting it cable charge not fast charge saw a video for an older phone to do that with some call code to reset the battery gauge
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Click to collapse
I have the same problem since a few weeks.
The percentage drops from 15% to zero.

Mine was a bit different, I was in 13% and then when I plugged in the cable to charge my phone, it showed I was actually in 6%. My friends, our phone is aging

Since it became cold outside I'm having the same problem

Yes
I had this problem with my Galaxy A5 2016 and now with my Galaxy S9...
Never go under 10% if you can't charge within 1 minute or better less. That's why I have a battery case.

So I think I fixed mine a video is for a note 4 ut I think it worked for mine also. Make sure your phone is almost dead and turn off fast charging then go to the phone dial up (built in app) and dial *#0228# and click the quick start (this will restart your battery gauge) let it die then charge to full might take longer but it's worth it.