In continuing to troubleshoot the problems with my Charge, I'm starting it might be a power quality issue. The biggest problem is the lockup when taking a flash picture, but I have other issues with media players.
Using "Battery Monitor Widget", I'm noticing that I'm getting around 4000mV when the battery is above 80% charge. But when it gets down to around 40% charge, the voltage is dropping to around 3500mV. Is this a problem? Does anyone want to install this app on their Charge and see what they are getting?
Thanks,
Blue
Related
I have battery charge problem.
I charge (on USB) my NS about 7 hours (during I sleep), after wakeup I check charge status it was "Charged", after that I unlock and goto home screen to check battery again.It was 100% so after that I unplug charger.
The battery level was drop to 97% immediately.
Is my NS got hardware problem?
Thank you and sorry for my English.
Normal problem out it will be fixed soon
Sent From Your Mom's Nexus S.
i think ive read that it helps the battery last longer.
Also, ive been experiencing some other problems with charging my phone.
When its plugged into my wall and charging, instead of increasing battery percentage as it should, it will decrease in battery percentage, really strange. I'm not sure if its the battery or my charger? Anyone else experiencing this issue?
Did XDA NS have list of problem on 2.3.2 and 2.3.3
Sorry I found that forum
That 97% is a common problem? Man... I've been trying to recalibrate my battery the whole week...
They don't need to limit the charge to 97% to make the battery last longer. They can just lower the Full Charge limit without doing this awkward 3% drop after unplugging the charger.
thank you for all answer
Kel Ghu said:
That 97% is a common problem? Man... I've been trying to recalibrate my battery the whole week...
They don't need to limit the charge to 97% to make the battery last longer. They can just lower the Full Charge limit without doing this awkward 3% drop after unplugging the charger.
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My understanding is that this isn't a result of a lowered full charge limit but rather the way that LiOn batteries charge: once they reach full capacity they stop charging until they reach a bottom limit (Not sure what it is on the NS but on the Evo it was 90%) at which point they begin charging again. They do this because LiOn batteries do not absorb charge past 100% but they do absorb the heat from the charge. Over time this over heating can cause issues. There is another method of charging wherein the battery charges to full and then the amount of voltage is slowed but is continued. This method is called trickle charging and awhile back on the Evo it was all the rage until reports started to trickle in of batteries smoking or even catching fire due to overheating. Hence the reason why trickle charging is not standard.
After logging the temperature for a few days I've noticed a direct correlation between phone temperature and battery life. The phone drains 1% every 3-4 minutes when its at or above 35. when its around 27° or lower it only drains about 5% per hour... I'm having an issue however. Today my phone was extremely hot. Right under 40° all day... with the screen off 90% of the time. Tonight I'm doing a test I've removed the back cover and its nowhere close to as hot as it was.before. I'm starting to think the battery cover is too close to the battery and internals thus causing overheating issues. I love this phone but I may try to swap it out for another while I still can. Has anyone else noticed similar issues? I'm underclocked at 800mhz screen brightness 10%. Does at&t charge a restocking fee if I return it?
Sent from my SAMSUNG-SGH-I997 using XDA Premium App
jthornton71707 said:
After logging the temperature for a few days I've noticed a direct correlation between phone temperature and battery life. The phone drains 1% every 3-4 minutes when its at or above 35. when its around 27° or lower it only drains about 5% per hour... I'm having an issue however. Today my phone was extremely hot. Right under 40° all day... with the screen off 90% of the time. Tonight I'm doing a test I've removed the back cover and its nowhere close to as hot as it was.before. I'm starting to think the battery cover is too close to the battery and internals thus causing overheating issues. I love this phone but I may try to swap it out for another while I still can. Has anyone else noticed similar issues? I'm underclocked at 800mhz screen brightness 10%. Does at&t charge a restocking fee if I return it?
Sent from my SAMSUNG-SGH-I997 using XDA Premium App
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Click to collapse
well there must be a big current draw for it too get hot. android has a bug that shows up occasionally where the radio consumes large amounts of power. also 2.3.3 has a similar bug where the system wont sleep, this should only effect gingerbread but it may just be more frequent in gingerbread.
check battery usage in settings>about phone. if anything other than the display is over 50% there is a problem. if it is android system then shut it down and pull the battery for a few minutes, start it back up. if it is the cell radio then put it in airplane mode for a minute and take it out of airplane mode.
removing the cover may help it stay cool but there isnt enough heat there to cause battery drain, instead the cause of the battery drain must also be the source of the heat.
was almost thinking bout buying this phone as its very hot in africa this could burn my hands
I am on my second Infuse.
My first one had battery charging issues, and compare to the current one it was also a battery hog. I did not put two and two together until the current one i have, but the first one would get hot around the camera area with just streaming slacker while browsing the web.
I exchanged it like 4 days after i got it due to it taking 6.5 hours to charge from 5% to 100%.
I just had the same issue... it was down to 10% so I put it on the charger... 3 hours later I looked back and its barley on 40%. It took 7 hours to fully charge last night. Something isn't right. Now my screen is completely set to off and I'm underclockong and its gone from 24° to 39° in 5 minutes.
Sent from my SAMSUNG-SGH-I997 using XDA Premium App
please check the battery usage in about phone. if anything other than the screen is around 50% there is a problem, the solution may be as easy as starting airplane modeand turning it off
I'm on CM10 8/31 and I've been noticing that my battery life has been really poor lately, so I wanted to find out what the problem was. I thought about draining my battery fully and then charging it again. Once I drained the battery, I charged it, and restarted the phone after the charging began. Once the phone booted, it reported a 50% or so charge. I'm wondering if my phone is stuck at reporting battery at half capacity, and that when it charges to 100%, it's actually 50%. Anything I can do?
EDIT: Also, I should note that the battery has sometimes spiked up/down by about 20% after a reboot (including today before the drain).
This phone has a fuel gauge chip, fully discharging and recharging will not calibrate it. False readings after reboot are common, you may even notice it will climb back up as it begins to accurately reflect level.
There are apps to let you know what is causing drain. BetterBatteryStats and CPUSpy are recommended a lot.
ALBGunner04 said:
I'm on CM10 8/31 and I've been noticing that my battery life has been really poor lately, so I wanted to find out what the problem was. I thought about draining my battery fully and then charging it again. Once I drained the battery, I charged it, and restarted the phone after the charging began. Once the phone booted, it reported a 50% or so charge. I'm wondering if my phone is stuck at reporting battery at half capacity, and that when it charges to 100%, it's actually 50%. Anything I can do?
EDIT: Also, I should note that the battery has sometimes spiked up/down by about 20% after a reboot (including today before the drain).
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Entropy doesn't frequent our forum much anymore, but he left some nuggets of wisdom behind.
As you have probably seen, he mentioned several times that generally our fuel gage doesn't need much attention. It may get a little out of whack if you have heavy usage followed by reboot, but generally the error is short-lived and goes away quickly (within an hour or so).
But apparently sometimes the fuel gage gets really confused, and in that case you can reset it (to un-confuse it) by powering down and pulling battery for 20-30 seconds. It certainly can't hurt to try.. that's what you try for any computer that was acting weird. That was discussed by Entropy here:
http://forum.xda-developers.com/showthread.php?t=1209087&highlight=+gingerbread+fuel+gauge+
By the way, here is a link to the fuel gage chip (MAX17040) used in Infuse
http://datasheets.maximintegrated.com/en/ds/MAX17040-MAX17041.pdf
It has a heuristic model of the battery. The only input is the battery voltage. So it looks at time history of voltage and provides an output signal. Exactly what the output is I’m not sure. You’d think it would be an estimate of %. But according to the circuit diagram there is no inputs to the MAX17040 other than battery voltage.
And yet our phone also knows when it’s charging. And our Infuse phone also has a sensor that enables it to measure current while charging (but not to measure current while discharging). This according to the developer of Battery Monitor Widget:
http://forum.xda-developers.com/showthread.php?p=31295223&highlight=infuse#post31295223
Why the heck would we not use sensed charging current and charging status as an input to calculating our % battery (since the signal does not go to the Max17040)? Beats me, doesn't make sense. Maybe the output of he fuel gage chip goes to the integrated power chip MAX8998 which looks at these other inputs (charging status and charging current) and develops the % estimate... I’m not sure.
Hello, this is how my battery life looks like.
So, battery, when it charges, goes up smoothly up to about 50 percentage mark. Then, the rate of charge slows dramatically, followed by a huge surge at the end. As soon as I unplugged my phone, however, the battery drops significantly, and I end up losing battery even as the battery is charged.
Any idea what has happened? I see no significant wake lock (I have no idea what the application says it's active), signal is high and sync is turned off. Is it a hardware issue? Corrupted battery stat?
I am running CM 11 Milstone 12, and the battery is a ZeroLemon extended battery.
uion1715 said:
Hello, this is how my battery life looks like.
So, battery, when it charges, goes up smoothly up to about 50 percentage mark. Then, the rate of charge slows dramatically, followed by a huge surge at the end. As soon as I unplugged my phone, however, the battery drops significantly, and I end up losing battery even as the battery is charged.
Any idea what has happened? I see no significant wake lock (I have no idea what the application says it's active), signal is high and sync is turned off. Is it a hardware issue? Corrupted battery stat?
I am running CM 11 Milstone 12, and the battery is a ZeroLemon extended battery.
Click to expand...
Click to collapse
Sounds like the battery or possibly the charging port is going bad. Those are really the only two I can think of
Sent from my Nexus 5
I think it is the battery, and not the rom, etc. but I have the 7000mah battery and my phone seems to struggle to get to 100% charging sometimes, and I will notice when I finally uncharge it, it can work its way down to 90% within an hour or so, but when it hits like 86%, it won't move for a while despite some heavy load. It's like there are particular % ranges it holds a charge in, and other %'s it struggles. Like charging from 50% to 70% isn't much of an issue, but its moving very slow in the low 80's.
Has anyone else seen this?