Database Users

Strange battery issues

I'm running a Sprint Mogul using no2chem's nueROM 2.2 Preview 7 (8's touchscreen issues made me downgrade), and having some very peculiar battery problems I'm hoping someone has advice about.
A few weeks ago I woke up, pulled my phone from the charger, and watched the battery instantly drop from 100% to around 83%. Over the next 15 minutes it dropped to the mid-70s before leveling out and discharging at a more normal rate. This occurred the next day and so on. Now this was with Seidio's 3200mAh extended battery. I then switched to my (sigh) OEM battery and didn't have the same problem, so assumed it was Seidio's battery, filled out an RMA, and sent it off to be repaired.
Now a couple of days ago the OEM battery started doing the same thing. I'd pull it off the charge and it would have somewhere in the range of 60% battery remaining. I'd have to plug it into my car charger or USB cable on my notebook to charge it up the rest of the way (albeit very slowly).
This morning I decided to watch the process from before I even unplugged it. First I noticed the orange light was on after a full night's charge. If memory serves me, the light's supposed to go out when it's at 100% (I may be mistaken). Meanwhile the battery meter was at 60%. I unplugged it and it remained there. I plugged it back in and watched no2chem's charge meter show the power connection, and I went ahead and left it plugged in for a little while before checking it again. It was now at 63%.
So what I'm finding is that at some point during the night my phone stops accepting a charge, despite the charge light remaining on.
I'm going to experiment with two things to further troubleshoot: tonight I'm swapping chargers with my wife's. I'm pretty sure the phone controls whether or not it's continuing to charge the battery, but I'm going to rule this out the only way I can. Then if that doesn't improve it I'm going to flash back to a Sprint official ROM (sigh) and see if maybe no2chem's power applet or power management settings are somehow causing this oddity.
Does anyone have any extra experiences with problems like this that might give me an idea of what else to try? Otherwise my thinking is if those two steps yield no improvements, then it's the phone's physical battery management hardware that's faulty and I'm going to have to use my insurance to replace the phone. I'd like to exhaust all the other resources before I spend the $50 on the deductible, though.
Thanks!

sometimes mine overheats while charging, at that point the LED flashes orange until it cools down enough to resume charging, this might be happening to your in the middle of the night

I thought I heard purple meant overheating. Either way, it's not clearly describing it. Also this has never happened before, so if it's happening every single night now, I've definitely got a problem.
Anyway, just plugged it in with my wife's charger. Let's see how it turns out in the morning.

You said :
"I'd have to plug it into my car charger or USB cable on my notebook to charge it up the rest of the way (albeit very slowly)."
Sure sounds like a bad charger.

worwig said:
Sure sounds like a bad charger.
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Click to collapse
Now confirmed. Just pulled it off my wife's charger after a full night, at 100%. Five minutes later, 99%. Much better. I wonder what would cause the charger to stop charging halfway through the night, but keep the charge light on. Well, at least the mystery's been solved.

I am sort of having the same issue. A couple of weeks ago I decided to upgrade from the standard Verizon ROM for my xv6800 to DCD's 3.2.2 ROM. The upgrade went perfectly. I always plug in my phone every night before I go to bed. The light turns orange while it is charging and then it is green when I wake up. The phone always showed 100%. Now with the updated ROM, I do the same, plug in before I go to bed, the light turns orange, and it is green when I wake up. But, when I look at the battery level when I unplug it, it is usually at about 94%. The battery level also seems to go down quicker than before, but I figured that had to do with the GPS radio and WM6.1. Why do you think the battery would no longer show 100% when I unplug it? Seems very weird that right after I upgrade the ROM my battery would start failing.

jeffgman said:
I am sort of having the same issue. A couple of weeks ago I decided to upgrade from the standard Verizon ROM for my xv6800 to DCD's 3.2.2 ROM. The upgrade went perfectly. I always plug in my phone every night before I go to bed. The light turns orange while it is charging and then it is green when I wake up. The phone always showed 100%. Now with the updated ROM, I do the same, plug in before I go to bed, the light turns orange, and it is green when I wake up. But, when I look at the battery level when I unplug it, it is usually at about 94%. The battery level also seems to go down quicker than before, but I figured that had to do with the GPS radio and WM6.1. Why do you think the battery would no longer show 100% when I unplug it? Seems very weird that right after I upgrade the ROM my battery would start failing.
Click to expand...
Click to collapse
DCD roms included new code to show 1% changes. The original code showed 10% changes only. Originally, you likely saw 100%, 90%, 80% etc. Now you see 95%, 94%, 93%, etc. It seldom goes to a perfect 100% and it LOOKS like it is discharging faster. In reality it is simply showing more detail.

worwig said:
DCD roms included new code to show 1% changes. The original code showed 10% changes only. Originally, you likely saw 100%, 90%, 80% etc. Now you see 95%, 94%, 93%, etc. It seldom goes to a perfect 100% and it LOOKS like it is discharging faster. In reality it is simply showing more detail.
Click to expand...
Click to collapse
Yes, I noticed the 1% increments, I figured it was Windows Mobile 6.1 compared to 6.0. I think the old method was reporting in 5% blocks.
So, your battery never shows 100%? Very weird. So, my battery is probably fine and it is probably behaving just like it always has?
Thanks for the information.

initial battery depletion

I haven't really found much else on this. But when I take my battery off the charger it goes down to 93 or so percent in just a few minutes. Anyone else have this problem

yeah this is an ongoing software issue with this phone, it is discussed in here somewhere. the fix for now is to once it is charged turn the phone off, then pug it it and it will charge again for about 15-30 minutes, you can do it a few times if you want but I havent personally seen a difference by doing it one or three times.

I don't think it is a bug.
The phone stops charging when full. So if you plug it in and go to bed it will stop after awhile, but continue to use juice as it normally does - unless it is turned off.
Doesn't reset until you unplug and re-plug in or reboot your phone, I believe.

That's what I thought at first too, but I have taken it off the charger immediately after hitting full and it still does it

It is a bug, must be a miss calculation for battery over charging protection.
Phone charges for an extra 30 minutes after it's "full" if you turn it off and continue to charge it.

th3drow said:
That's what I thought at first too, but I have taken it off the charger immediately after hitting full and it still does it
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Click to collapse
Mine doesn't. When the initial charge completes and I plug it right back in, it stays green. Doesn't matter if it is on the car charger or regular charger.

Try what jitajt describes.
Charge it.
Disconnect it.
POWER IT OFF.
Then plug it back in. The charge indicator will be orange. Not green.
Charge til the light is green.
I tried what you described: charge,unplug,plug back in, and the charge indicator stayed green.
Not until you do as jitajt describes, and what is outlined above, will you get a full charge.

just did it, works alot better, it sucks though because it is really time consuming, not something i would be able to do every day.

Yeah.
Maybe one of the near-future OTA updates will include a firmware fix to take care of this.
Hold your breath...

same on the att tilt2, must be an htc thing

Battery Pro-Tip

Just a little something lots of people have probably noticed with the vibrant battery that I ran into as well.
When you are done charging the phone and unplug it, sometimes it immediately drops down to 97-98%
Yesterday, each time the phone said it was fully charged, I just unplugged and then replugged the battery. And It would charge for another 10-15 minutes.
I was able to do this 4 or 5 times, each time it took a little less time. But once I got it to a 'true' 100%, i reconditioned the battery, and I feel like I am doing a lot better on power than I was before.
Maybe the whole thing is in my head, maybe theres 20 threads about this already, but here it is again. Hope it helps someone.

Nope, that's real. You're doing a type of bump charge, and it does help your battery at the top end. Normally I stop when my batt hits 4250mah.

Thanks for the advice.

Have any of you guys ever experienced something like this?
Last night I got my phone down to 2-3% before recharging. However, it was feeling a little sluggish so I decided to reboot (with the charger still plugged in). After I rebooted it, it reported the battery at 27% charging. Note: This was literally 5 minutes after I started charging my phone...
I think I'm going to reboot my phone first before I plug it in..

anthonys2r said:
Have any of you guys ever experienced something like this?
Last night I got my phone down to 2-3% before recharging. However, it was feeling a little sluggish so I decided to reboot (with the charger still plugged in). After I rebooted it, it reported the battery at 27% charging. Note: This was literally 5 minutes after I started charging my phone...
I think I'm going to reboot my phone first before I plug it in..
Click to expand...
Click to collapse
Try recalibrating your battery.
If you have clockworkmod installed follow these steps
1. Charge phone completely, leave plugged into power
2. Boot into recovery
3. Wipe battery stats
4. Reboot
5. Remove power cable
6. Drain that sucker all the way
7. Recharge fully
8. Rejoice!"
Click to expand...
Click to collapse

Battery level drops to 99%

Anyone out there notice that on a completely full charge using the AC charger, the minute you pull out the charger, the batt indicator on the TAB will drop to 99% ? The 100% only last a couple of seconds!!! No apps running , wifi, BT, GSM is all off.
Is this normal ?

Yup. Same thing happens here. I think it's normal. Same thing happens with my mobile phone.

Thanks.. but this never happens to my mobile phones and that includes Samsung Omnia, Omnia II and Omnia Pro..

As soon as i pull my plug i am showing 98%.

Yep, I was wondering that too. It goes straight to 99%. I guess it's some bug, it doesn't really go to 99%

It's just rounding down, but think about it:
The moment you unplug it, you're consuming battery power.
If you've consumed any battery power, it can't be at 100%, now can it?

I really don't see the problem with it dropping to 99% .. really i don't !!

Croak said:
It's just rounding down, but think about it:
The moment you unplug it, you're consuming battery power.
If you've consumed any battery power, it can't be at 100%, now can it?
Click to expand...
Click to collapse
SMARTA$$

sorry guys stupid question. How can i check battery %?

pda_crazy said:
sorry guys stupid question. How can i check battery %?
Click to expand...
Click to collapse
Any number of ways, but I have been using the "Batterylife" widget from curve fish on the market.

Thanks i installed it. I noticed that my battery drains quiet quickly, my tab was in stand by mode for 30 to 45 min and i battery drains by 9%. I just bought it this afternoon could please guide.
Sent from my GT-P1000 using XDA App

cmloo said:
Anyone out there notice that on a completely full charge using the AC charger, the minute you pull out the charger, the batt indicator on the TAB will drop to 99% ? The 100% only last a couple of seconds!!! No apps running , wifi, BT, GSM is all off.
Is this normal ?
Click to expand...
Click to collapse
With a lot of android devices the battery is not calibrated with the system, there was a post on how to do this with a nexus one. i used it on my vibrant and it worked the same. it was a series of steps like plugging the phone in, powering off, powering on, unplugging again, weird stuff like that. and it actually works. sorry i dont know where the post is or the exact steps to do.

donniestarko said:
it was a series of steps like plugging the phone in, powering off, powering on, unplugging again, weird stuff like that. and it actually works. sorry i dont know where the post is or the exact steps to do.
Click to expand...
Click to collapse
I did this for my captivate and works well:
1. Connect the phone to the charger with the phone powered on, and allow the phone to charge until it shows 100%
2. Disconnect the phone from the charger, and power it off.
3. Reconnect the phone to the charger with the phone powered off, and allow the phone to charge until the battery indicator shows 100% (you can use vol-up/vol-down to make the indicator come back up when the screen goes to sleep).
4. Disconnect the phone from the charger and power it on.
5. Once the phone is powered completely on, power it off again and reconnect it to the charger until the battery indicator shows 100%.
6. Disconnect the phone, power it on, and use it.

Hey, it doesn't happen to me so you must have something else going on.

The only thing that matters is how long the battery lasts between charges.
The percentage of charge shown on a battery gauge widget is meaningless unless the battery is draining abnormally in relationship to the way the tab is being used.
I find that my tab drains from 99% to 60% in about 2.5 hours with wifi on, GPS on, bluetooth off. It then takes another 4.5 hours or so to drop from 60% to about 10% under the same conditions. So... 7 hours of continous wifi on web browsing isn't much to complain about.

Croak said:
It's just rounding down, but think about it:
The moment you unplug it, you're consuming battery power.
If you've consumed any battery power, it can't be at 100%, now can it?
Click to expand...
Click to collapse
LMAO!!!!
He DOES have a point.

Croak said:
It's just rounding down, but think about it:
The moment you unplug it, you're consuming battery power.
If you've consumed any battery power, it can't be at 100%, now can it?
Click to expand...
Click to collapse
exactly..

Most modern electronic devices on Li-ion batteries do this. When the device reaches 100%, it will stop charging to prevent damage to the battery. The battery then drains to 90-95% and the charging circuit allows the battery to charge again. Most systems hide this by displaying the battery level at 100 or 99% for a while after the device is unplugged. Hope this helps!

A possible fix/help for the gingerbread battery charging

For anyone unaware, refer here. So a few days ago I was just charging my phone by my desk, and it had fully charged. At that point, I didn't really bother to unplug it as I had no need to use the phone. However, later on (about an hour or so later) when I took it out, it remained at 100% where as if I took it out immediately it would drop to 97%
It's probably not even a fix, just something that may help people if they want 100% battery. I don't know if it actually works for everyone, or I just get lucky.

blazevxi said:
For anyone unaware, refer here. So a few days ago I was just charging my phone by my desk, and it had fully charged. At that point, I didn't really bother to unplug it as I had no need to use the phone. However, later on (about an hour or so later) when I took it out, it remained at 100% where as if I took it out immediately it would drop to 97%
It's probably not even a fix, just something that may help people if they want 100% battery. I don't know if it actually works for everyone, or I just get lucky.
Click to expand...
Click to collapse
Is this a feature right? where the power auto cut while charging reached 100% ??

Yeah it's a feature, just for me sometimes it goes to 100% when I unplug it

apologies for bumping up the old thread
i had JV1/JVP firmware with speedmod kernel installed about 3 months ago. Problem was, the battery would NOT charge once it reached 100%.
i.e. I left the charger plugged into the phone and used the phone to play games, surf the internet (data usage) etc, believing that the phone would stay charged because it was plugged in.
However, after I unplugged the charger (approx. an hour of phone usage) the battery was like 20~30% this was shocking....
at that time, whenever i reached full batt i had to unplug the charger. else i would be getting false 100% batts all the time.
problem solved when i flashed to JVR.