Battery charging pack - inaccurate reading - LG V10 Q&A, Help & Troubleshooting

I recently purchased the original LG battery charging pack with an included battery.
So i charge the batteries exclusively using the external charger. When the battery level of the phone goes to around 20-30% I swap in the charged battery. Now the problem is, even though the new battery is charged, the percentage is the same as before i switched out the batteries.
So let's say i swap at 33%, the new battery also reads 33% after the boot.
Is there a way to recalibrate the battery meter?

Found the solution:
The battery swap was done too fast, so the phone didn't realize there could be a new battery inside.
I tried again taking out the battery, waiting maybe 20 sec, then rebooted. Now the battery percentage is accurate again!

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[Q] charging/draining issues

So I'm running my aria on CM7-07282011-Nightly. I'm having battery issues, not battery-life issues, but general battery function issues. My stock battery died, then I bought two identical 1500mah batteries, which I have been charging with a standard Li-ion smart charger which I normally use for battery packs I build for various other projects. I just charge one battery while I use the other battery. Anyways the problem is that my phone's battery meter will never go over 80%. I boot up on a fully charged battery, and after two or three minutes have passed(when it first boots up it just shows the % it was at when I took the other battery out), the phone reads something like 74%.
I've thought maybe there was just a problem using two different batteries, so I tried charging one of these batteries in the phone and of course they stop a little above 70%, and sometimes the battery even drains while plugged into, well, any, of my 4 AC wall-plug type chargers or my computer.
I've tried wiping the battery stats, but it didn't do anything, and all the calibration methods I see say to charge until it's at 100%, which I can't get to...
I just wish there was a way to plug in an externally charged battery and reset the battery meter and force it to recognize whatever value is actually 100%....I've searched these forums and googled for two days and found no solution.
Does anyone know how I can fix this??
Try fixing permissions
Sent from my Liberty using XDA App
I'm not sure if there is anything you can do about it. There's almost always going to be some quirks with third party batteries.
A tip is never get 3rd party batteries and the batteries we use love charging so charge whenever possible because if you let your battery die before charging waste builds up and leaves less space for charging.
Signatures are fancy.
well, the phone works as long as if the battery has been charged to 100%, so I just wondered if the was something I could do...
So even if the batteries work a long time when fully charged from my external charger, there is no way to fix the battery meter? If I continue using it normally would battery stats eventually callibrate? they are good batteries...just seems like a software problem to me
Where did you buy the batteries from, E-bay??? E-bay and other on-line markets are loaded with Chinese knock-off batteries & SD cards that are fakes and/or not to manufacturer spec products.
If that's what you have, you can't expect the phone to "fix" it.
Battery stats do take a few days to calibrate, but I believe it should still show 100% when charged, if you have a real battery and not something out of spec.
I don't know what the manufacturer specs are, but a fully charged battery reads 4.2v, well within standard Li-ion open-circuit values. There is nothing wrong with these batteries....
chaldeman1984 said:
I don't know what the manufacturer specs are, but a fully charged battery reads 4.2v, well within standard Li-ion open-circuit values. There is nothing wrong with these batteries....
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Problem is that the percent battery available is not determined my measuring the cell voltage, rather reading a value out of the fuel gauge built into the battery pack. Li-Ion batteries have a rather flat discharge profile then crater at the end, making the cell voltage an unreliable predictor/measure of battery capacity.
T

Original battery problem

So I usually use two extended batteries and swap them using an external charger.haven't charged my phone itself in a while.
The last two times I came to user the original battery after full charges, it only shows up as 83% even though the charger shows a green light.
I know the enlightened battery uses 2% to power up this sucker, does the original use up 13% or is three something wrong with the battery? Not using ICS either just Nils GB.
couchmonkey said:
So I usually use two extended batteries and swap them using an external charger.haven't charged my phone itself in a while.
The last two times I came to user the original battery after full charges, it only shows up as 83% even though the charger shows a green light.
I know the enlightened battery uses 2% to power up this sucker, does the original use up 13% or is three something wrong with the battery? Not using ICS either just Nils GB.
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Click to collapse
I haven't tried charging my original battery in an external charger yet. Though I'll look into testing my 2 extended batteries vs. the original to see what the phone tells me.
My extended batteries are both 3.7 volt and my stock phone battery is a 3.8 volt.
Doesn't sound normal, however. I expect the power up to suck 1 or 2 percent of power from a battery not 13 percent.
yeah, so everytime I take it off the external charger and turn on the phone it goes to 83% but if I remove the battery in the middle of the day and restart the phone it just goes down 1%. I can fully charge the battery in the phone though.
I am stumped.
couchmonkey said:
yeah, so everytime I take it off the external charger and turn on the phone it goes to 83% but if I remove the battery in the middle of the day and restart the phone it just goes down 1%. I can fully charge the battery in the phone though.
I am stumped.
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Is your phone rooted? If it is you can use battery monitor apps to analyze your batteries from 0 - 100 percent charge and correctly monitor and adjust charging through your phone.
It has something to do with the fact that the original batteries for the Rezound are 3.8 volt. This slightly increases the capacity for these but also confuses the hell out of the charging circuits that are either in the battery or in the phone itself so it never fully charges correctly. The phone is misreading the battery capacity so once it hits a certain voltage it stops charging and displays a green led.
Don't quote me, but this is what it sounds like to my limited knowledge of such things.
Try charging your battery in your phone while it is off and see if it charges fully.

[Q] How Many Charge Cycles Can I Expect?

Since the battery on my newly acquired Razr Maxx can't be removed and replaced, how long will this phone last me? Charge cycles?
Is it OK to drain the battery all the way down (charge every other day) or will that shorten battery life?
DontCome2MyHouse said:
Since the battery on my newly acquired Razr Maxx can't be removed and replaced, how long will this phone last me? Charge cycles?
Is it OK to drain the battery all the way down (charge every other day) or will that shorten battery life?
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Click to collapse
No Official number but in general batteries typically are spec'd to last 300 cycles before there charge is 50% capacity of what it was new, So I always make it a thing to go aslong as I can hold out between charges, just don't try powering it on if it shuts itself off from low battery, that is a fast way to kill a battery, also there are tutorials on how to crack open the case and replace the battery if you end up needing to, but by that point you will probably have moved on to some quad core phone that will be all the rage in 2 years.
With li-on batteries, its best for the battery if you charge around the 40-30% mark. There is a chart out there somewhere, but I don't have it handy. You also don't have to worry about a memory any more
Yes... Only Ni-Cd and Ni-MH batteries have memory problem and Li+ doesn't have those issues...
Top-up the battery whenever possible + need arises... This also reduces battery getting hot, comparing charging from say 10% to 100% at a single stretch... This is useful as Razr/MAXX has non-removable battery....
PLEASE DON'T LET YOUR BATTERY TO GET DRY OR 0% LEVEL and PLEASE DON'T CONNECT TO MAINS FOR LONGER TIME after battery becomes 100% charged... Only these two must be avoided...

[Q] Li-Poly battery

Our Xperia S is powered by an li-poly battery and i recently read an article saying it has a life of 250-300 charge cycles..
I was wondering what are this charge cycles ??
Everytime we charge the phone to 90% the default battery app starts a new cycle of recording battery use, is this ONE CYCLE for li-poly battery ?? :silly:
Since i have read this i keep charging my phone between 15 and 95.. I don't let it completely drain nor try to charge it to full, hoping it would help my battery on a longer run
It's probably a very old article.

Battery calibration.

Hi, I was asking myself if it was possible to copy batterystats.bin from a calibrated x10i to have our own x10i calibrated.
I explain : I see that file like a file with values that have the percentage of the battery with the duration and stuff like that, so copying it to have the right values.
Can work or not ? influenced by kernel or rom ? What do you think ?
Li-Ion batteries just need a good charge for approx 8-12hrs when new and first installed and having this process repeated for at least 4-5 charges.
The phone doesn't allow the battery to over change and cuts out and then starts changing again once the charge drops to a chargeable threshold.
This allows the battery to achieve it's maximum charge.
Li-Ion batteries should never be drained or allowed to run flat and should be charged regularly.
If you completely discharge a lithium-ion battery, it is ruined.
Li-Ion battery life is between 2-3 years.
I would let the battery sort itself out as all the battery status is based on the battery itself.
If the battery is old and on it's last legs, it'll have less charge than a newer battery.
P.S. If you plan to keep and use the XPERIA X10i for some time, it's well worth buying a Mugen Power 1800mAh battery.
Dr Goodvibes said:
Li-Ion batteries just need a good charge for approx 8-12hrs when new and first installed and having this process repeated for at least 4-5 charges.
The phone doesn't allow the battery to over change and cuts out and then starts changing again once the charge drops to a chargeable threshold.
This allows the battery to achieve it's maximum charge.
Li-Ion batteries should never be drained or allowed to run flat and should be charged regularly.
If you completely discharge a lithium-ion battery, it is ruined.
Li-Ion battery life is between 2-3 years.
I would let the battery sort itself out as all the battery status is based on the battery itself.
If the battery is old and on it's last legs, it'll have less charge than a newer battery.
P.S. If you plan to keep and use the XPERIA X10i for some time, it's well worth buying a Mugen Power 1800mAh battery.
Click to expand...
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how does that answer to my question ? Do they sell new x10i ? meh

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