Odd charging behaviour noticed - Xiaomi Mi Max Questions & Answers

Well I dont have much expectations from a 4y old device, but this kinda sudden change is making me curious. I plugged in my phone to the AC mains tomorrow night @ 12 AM @ 5% battery. When I woke up today (@ 7 AM), I just turned off the switch without looking at the charge. When I looked at the charge right now (@ 10 AM), its 77%. My first guess was that some app has drained the 23% battery (I thought it must have charged 100%, anyone will think so if a phone is left to charge for 7 straight hour), but then I had a look at the power statistics (screenshot attached). It just stopped charging after reaching 77%!? Why? It was still plugged in. Anyways, yesterday only I installed Ampere on my phone. Installed because I had doubt that the adapter I had been using for some long time is a fake one. What do you think should be the reason for this type of 'rejecting incoming charge'?

maybe your battery needs replacement.

Ammitz said:
maybe your battery needs replacement.
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I don't think so, because it was just perfect till yesterday.

Related

Last full charge status = Not applicable???

I got my Tilt 2 yesterday. I charged it to 100% before using it, then had it on all afternoon setting it up and adding programs. I charged it all night, but when I got up this morning the battery said 70%.
I went to the power settings and noticed there's an information tab that has status info since the last full charge. The status under Last full charge on my phone said "not applicable". I plugged it in at work this morning and waited a while to make sure the charging light turned from orange to green. It did and the battery power remaining was 100%. I left it charging another hour.
A little later I checked the information tab again. It still says Last full charge: Not applicable. HUH???
Aside from the Last full charge field, it also has stats for Standby time, Talk time and Device usage since last full charge. Since I apparently still haven't had a "last full charge" all the values are 0 on my phone.
Does anyone else have a date and time in that field on the information tab?
i got the same on my imagio.
When I first got my Tilt 2, I noticed that screen and thought "hey that's useful". It had the values all filled in properly. But when I went back later to check it, I saw "Not Applicable" just like you. It seems to be intermittent though, because I checked it just now and it has good data. I haven't noticed any correlated factors that predict whether the info will be there or not.
catcraig said:
I got my Tilt 2 yesterday. I charged it to 100% before using it, then had it on all afternoon setting it up and adding programs. I charged it all night, but when I got up this morning the battery said 70%.
I went to the power settings and noticed there's an information tab that has status info since the last full charge. The status under Last full charge on my phone said "not applicable". I plugged it in at work this morning and waited a while to make sure the charging light turned from orange to green. It did and the battery power remaining was 100%. I left it charging another hour.
A little later I checked the information tab again. It still says Last full charge: Not applicable. HUH???
Aside from the Last full charge field, it also has stats for Standby time, Talk time and Device usage since last full charge. Since I apparently still haven't had a "last full charge" all the values are 0 on my phone.
Does anyone else have a date and time in that field on the information tab?
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you should never leave your phone plugged into the charger after it has reached full capacity. you're basically draining the overall battery life of the phone, so it won't last as long off of a full charge.
did that to my old tilt before I found out about the overcharging thing, and had to use my warranty to get a new one since the phone would shut off by itself at 90%+ and turn back on again with >5% battery power left
poppinpengawen said:
you should never leave your phone plugged into the charger after it has reached full capacity. you're basically draining the overall battery life of the phone, so it won't last as long off of a full charge.
did that to my old tilt before I found out about the overcharging thing, and had to use my warranty to get a new one since the phone would shut off by itself at 90%+ and turn back on again with >5% battery power left
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I wasn't really sure that it was fully charged because of that stupid message about the last full charge not applicable. Thanks for the information. I didn't know that it was possible to ruin a battery by overcharging it.
@enisoc,
I thought it seemed like it would be a useful feature, too. Every single time I check power settings the values are null. It's interesting to know you've seen data there at least twice.
ETA: Now that I think about it, for the last two years I've plugged in my Tilt before going to bed and left it charging all night. Every morning it was 100% charged and I never noticed any adverse effects.
poppinpengawen said:
you should never leave your phone plugged into the charger after it has reached full capacity. you're basically draining the overall battery life of the phone, so it won't last as long off of a full charge.
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Click to collapse
Maybe I've just been very lucky, but I have had a Sprint HTC Touch and before that a Samsung Blade (razr wannabe), each for two years. Every night for those four years, I plugged in my phone before going to bed and left it there. I have always had great battery life on both phones.
Specifically for the TP2, I have read that it stops charging at some point when it's done, and won't trickle even if you leave it plugged in. This has been reported by various people because they find that if they leave it plugged in for very long times, they'll end up with only about 95% battery, because after the first few hours it was no longer charging.
Perhaps less convincing, but also interesting, is the fact that (when it works) the "last full charge time" on my TP2 shows up as a couple hours after I went to bed, rather than the time when I unplugged it in the morning.
YMMV
enisoc said:
Maybe I've just been very lucky, but I have had a Sprint HTC Touch and before that a Samsung Blade (razr wannabe), each for two years. Every night for those four years, I plugged in my phone before going to bed and left it there. I have always had great battery life on both phones.
Specifically for the TP2, I have read that it stops charging at some point when it's done, and won't trickle even if you leave it plugged in. This has been reported by various people because they find that if they leave it plugged in for very long times, they'll end up with only about 95% battery, because after the first few hours it was no longer charging.
Perhaps less convincing, but also interesting, is the fact that (when it works) the "last full charge time" on my TP2 shows up as a couple hours after I went to bed, rather than the time when I unplugged it in the morning.
YMMV
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oh wow really? that's interesting. that would be nice if it's really true. what I've been wanting is an app that allows the phone to make some sort of noise (i.e. an alarm sound) when it is fully charged. just to let it's owner know that it's finished and so it won't get overcharged. I think i'll go request it at development n hacking.
I am 100% sure that you cannot overcharge a TP2, in fact I would say any phone or device with a Lithium Polymer battery.
..........
it's true, once the TP2 hits 100% it stops charging the battery & the usage time will kick in.
Day 3 and still no data in the battery power information tab.
do a hard reset. mebbe itll work.
Since its very new, you got nothing to lose.
flip, do you have a TP2? If so, does that tab give you data all the time?
yes, its a Tmo TP2.
it worked on the Stock rom.
I have a custom rom now, and it works as well
once the green light comes on on the touch pro 2 u it stops charging, u cannot overrcharge it
Not only can you not overcharge the lithium Ion batteries it is actually better for them to be recharged as often as possible.
Menneisyys wrote a great article on it a while ago. This confirms what I have always been told.
http://forum.xda-developers.com/showthread.php?t=342162&highlight=battery+charging
Overcharging li-ion (and li-po) batteries results in catastrophic failure, a.k.a. explosion. Therefore, chargers for these battery chemistries stop charging when they're full.
Something is wrong with ne WM6.5 driver!
Yesterday my battery duration was about 24h (with 6.1 i charge it every 2-3 days!)!!
I fully charged at midnight and now, after 15h it says 90%... It's a little bit strange!
At midnight i could see battery stats.. Now it says "not applicable".
I used Dr SigStat and it says a temperature of 2,47°C!!! (in WM6.1 temperature was normal).
What's wrong??
Over the weekend I finally got some data on the information tab. Either Saturday or Sunday morning when I checked it gave some time around 5AM as the last full charge time. Now it's back to Not Applicable.
@D J Palmis,
I wonder if anyone knows the answer to the 6.5 battery dilemma. When I was using a cooked 6.5 ROM on my Tilt I was getting normal battery duration. My battery life on the Tilt 2 is comparable to my old Tilt.
i see this on my tilt2. battery info shows up, with idle/usage times for a short while after full charge (green) if i check after a few hours, it goes to n/a. looks like a driver bug to me.

ROMs or hacks that allow trickle charging past 90%?

So it's already been established that after the EVO charges fully to 100% it then stops receiving a charge and runs off the battery before charge cycling again. All the while displaying 100%.
Has any effort been put into changing the way this operates? Seems like it'd be nice to leave the phone on a charger and when you take it off, it would actually be at 100% and not at some arbitrary percentage between 90% and 100%.
It's better for the battery life.It's really good option if you ask me.
Sent from my HTC Magic using XDA App
You mean make it so that the battery's status bar shows a realistic value once it stops taking a charge, even though it's still plugged in, right? Not actually changing the way it takes a charge. I'd be interested in seeing that happen.
Is that why when you unplug it, the first 5% or so disappear within minutes?
thegame3202 said:
Is that why when you unplug it, the first 5% or so disappear within minutes?
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Yup. This is why when you charge overnight the battery plummets right after.
*Currently Mobile*
Don't leave it plugged it after it reaches 100%. Problem solved.
triggert said:
Don't leave it plugged it after it reaches 100%. Problem solved.
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Click to collapse
Valid point. Lol
There are some people who don't want to wake up in the middle of the night to unplug their phone. Like me.
annoying, but just unplug your phone when you do wake and plug it back in after about 10 seconds. let it finish fully charging while you get ready.
it's better for the battery though, case closed. Lenovo has been doing somehting similar w/ their laptops for years. It never charges the battery past like 97%, and when it does reach the top it stops charging until it falls below like 92 then recharges. HTC needs to loook out for the battery they already have enough flak from all of us for the last few years w/ every touch device they have had. We want more life, and they are giving it to us, just wish they could figure something out like lenovo, let it go down to mayeb 94 then charge up again perhaps.
it really isn't true, mine dumps 10% or so off the charger regardless of if it has been on the charger all night or 2 seconds after it turns green.
So I've done the:
1 charge to green
2 unplug
3 turn off
4 charge while turned off.....to green again.
And here are my honest results.
Boom........phone has 20% left after 16.5 hrs of moderate use (calling time total 1 hrs talk total, surf /post 1 hour total, load up 5 apps from the market, listen to audio clips on the speaker phone for almost an hour straight, podcast this morning for 30 min...and other randomness)
And still have 20% left. Going since 6:30 a to 10:30 p...........approximately 16 hrs equals 80% so about 3.2 hrs left to use before dead.
THIS EQUALS APPROX 19.2 HOURS OF MODERATE USE BEFORE RECHARGE NEEDED.
eat it Apple 4G . You can't even reliablly make calls let alone last that long without charging. My 3g never lasted that long. You still need a wall Apple we are truly mobile. If I was on the road I could (don't need to just yet) swap out for another battery.
I'm loving xda for all their brains helping me get the most out of this phone. Thanks to all.
Sent from my HTC EVO 4G using the XDA App.
The point here is that we shouldn't have to do the "charger circle jerk" to have 100% battery. I should be able to unplug it and have a full battery. Not 90%. I might need that 10% later on today, its accomplishing nothing sitting on my nightstand.
If the battery is toast after a year instead of a year and half, i don't care. I want a fully battery, not an almost full battery.
jasonziter said:
So I've done the:
1 charge to green
2 unplug
3 turn off
4 charge while turned off.....to green again.
...
.
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Click to collapse
HTC advised a similar solution to the battery issue. I did this a few times and my battery lasted more than 15 hours with moderate use. Here's the post:
http://forum.xda-developers.com/showthread.php?t=712990
Edit: Duplicate Post
Edit: Duplicate Post
My phone used to do this, even after i followed all the little tips and tricks of playing hide and go seek with the charging cable and my phone.
Know how i solved it?
Bought one of those $10 Ebay 2 1500mAh TP2 Battery And Wall Charger bundles, now i dont use the OEM charger at all, the cable turned into a permanent USB cable on my comp and never sees the actual HTC charging unit it plugs into for AC power. I have 3 batteries and i rotate them in that little wall charger which actually charges them to 100%. Its also proven because if you take one of the batteries, put them in the phone and charge them until the green light comes on, supposedly to "100%" and then take the actual battery out and put it in the ebay wall charger, it will still charge for another 15-25 minutes. Charging it in the phone, as soon as i unplug, it almost instantly always drops to 90%... charging with the ebay wall charger, it will stay at 100% for a while before it falls off.
Below is the link to my thread which contains linkage, pics and info about the ebay bundle, others also claim the same issues and fixes in my thread. I mean for $10 bucks, does it really matter if it works for you or not? Its worth the shot and for me, it was a great investment.
Best of luck.
http://forum.xda-developers.com/showthread.php?t=715739
I did this last night and I'm at 14 hrs and 57% left. If I have to charge like this to get great battery life that's fine. My iPhone 3gs would last half a day. So this is blowing it out of the water. And I can hold it with my left hand to talk.
Sent from my PC36100 using
You can hold the 3gs with your left hand as well...
cpiddy said:
I did this last night and I'm at 14 hrs and 57% left. If I have to charge like this to get great battery life that's fine. My iPhone 3gs would last half a day. So this is blowing it out of the water. And I can hold it with my left hand to talk.
Sent from my PC36100 using
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Good stuff man, I finally just switched batteries after 21 hours.

[Q] Charging Takes Forever???

Hello,
So I was at about 10% when I went to bed last night (around 11 PM). I plugged my phone into an outlet charger (the one that came with my old Nexus 4, not the one in the G3 box) and when I woke up (645 AM) the phone was only at 65% charged? I can't imagine that it would take over 7 hours to do a complete charge. Has anyone else experienced this? The only thing I can think of is that my old charger produces less output than the one in the box, but I haven't tested it out yet.
Lou
Try it again with the actual g3 charger so you can know for sure if it's a phone issue or a charger issue.
louballs said:
Hello,
So I was at about 10% when I went to bed last night (around 11 PM). I plugged my phone into an outlet charger (the one that came with my old Nexus 4, not the one in the G3 box) and when I woke up (645 AM) the phone was only at 65% charged? I can't imagine that it would take over 7 hours to do a complete charge. Has anyone else experienced this? The only thing I can think of is that my old charger produces less output than the one in the box, but I haven't tested it out yet.
Lou
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Click to collapse
Over the past few weeks I have been testing all kinds of chargers and cables. I noticed that the G2 charger is the closest to G3 but not as good. The issue is the cable itself. Kopi 20awg with oem charger, g2 will work, charges at the same speed as the original one.
louballs said:
Hello,
So I was at about 10% when I went to bed last night (around 11 PM). I plugged my phone into an outlet charger (the one that came with my old Nexus 4, not the one in the G3 box) and when I woke up (645 AM) the phone was only at 65% charged? I can't imagine that it would take over 7 hours to do a complete charge. Has anyone else experienced this? The only thing I can think of is that my old charger produces less output than the one in the box, but I haven't tested it out yet.
Lou
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Click to collapse
Did your phone stop charging in the middle of the night? That happened to mine on the first night when I used an old iPhone (1000mA) charger. It just quit somewhere in the 60% range. Switching to a higher powered charger (iPad - 2100mA) it charges very quickly. On my desktop at work, the USB3 port I have charges at an abysmally slow rate (prob 500mA or less, and in a lousy reception area so it's burning 100-200 of that just keeping the network alive).
The boxed charger, btw, is 1800mA.
Thanks for the responses. I will try the charger that came with the device overnight tonight and report back in case anyone else has similar issues.
Replace
louballs said:
hello,
so i was at about 10% when i went to bed last night (around 11 pm). I plugged my phone into an outlet charger (the one that came with my old nexus 4, not the one in the g3 box) and when i woke up (645 am) the phone was only at 65% charged? I can't imagine that it would take over 7 hours to do a complete charge. Has anyone else experienced this? The only thing i can think of is that my old charger produces less output than the one in the box, but i haven't tested it out yet.
Lou
Click to expand...
Click to collapse
time to get new battery
syon.piyush said:
time to get new battery
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Click to collapse
The phone/battery are literally 2 days old. Can't imagine it's the battery already. I will do some more troubleshooting since is obviously not a common occurrence.
Strange
louballs said:
The phone/battery are literally 2 days old. Can't imagine it's the battery already. I will do some more troubleshooting since is obviously not a common occurrence.
Click to expand...
Click to collapse
Strange
try wiping battery in cwm if helps,and install super charge as some custom build roms are buggy.
My Xperia ZL wouldn't charging from getting too hot in the middle of the night. I would wake up to a very low battery. Between the screen waking up, trying to find a signal, and covering it with my pillow it would get too hot. Haven't had the issue with the G3 yet but I have woken up to the screen on and that stupid battery fully charged message.
Retarded Timing said:
My Xperia ZL wouldn't charging from getting too hot in the middle of the night. I would wake up to a very low battery. Between the screen waking up, trying to find a signal, and covering it with my pillow it would get too hot. Haven't had the issue with the G3 yet but I have woken up to the screen on and that stupid battery fully charged message.
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Click to collapse
my scren doesnt stay on when battery is full. it will light up for a brief period of time and then turns off. the green led stays on.
The nexus 4 charger is probably rated at a much lower amperage 1.2A actually https://play.google.com/store/devices/details/Nexus_4_Power_Adapter?id=nexus_4_charger&hl=en
However your cable will also play a big role in this. The rating on the cable will determine whether or not it will actually allow that much current to pass through it. The stock charger works great, it chargers in less than 2 hours from 0 to 100%. I only use my nexus 7 charger to charge my spare battery on its cradle which is no big deal because it doesn't need to be fast.
Mine takes about 2 hours and 20 min for 0 to 100%
That charger may also be sending dirtier power because it's older too. I'm amazed at how fast mine charges. I haven't timed it, but it has to charge over 35% in an hour if you start at around 20%. Hell, I have started wirelessly charging with a Powerbot (connected to official charger) at about 15% at night and woken up a few hours later and checked the time and the thing was at 100%.
RESOLVED
OK, this is resolved, seems like the issue was in fact the charger I was using. I used the one that came with the unit and it charged up no problem. At least that issue is solved in case anyone else runs into. Thanks everyone.

Won't charge to 100%

Anyone having an issue with their phone only charging to 98%? It will only each 100% if I unplug it for a bit once it reaches 98% and then plug it back in.
saragez said:
Anyone having an issue with their phone only charging to 98%? It will only each 100% if I unplug it for a bit once it reaches 98% and then plug it back in.
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Click to collapse
No issue here.
Sent from my Google Pixel 2 XL using XDA Labs
saragez said:
Anyone having an issue with their phone only charging to 98%? It will only each 100% if I unplug it for a bit once it reaches 98% and then plug it back in.
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Click to collapse
not seeing that on mine.
It does this by design. It prevents battery damage and prolongs battery life (in terms of life expectancy and usability over years).
http://www.androidpolice.com/2010/1...bump-charging-and-inconsistent-battery-drain/
I've had the 98% issue since day 1. I've never seen 100%. It appears to be a very rare issue. Otherwise my battery performance is great!
jordanl17 said:
I've had the 98% issue since day 1. I've never seen 100%.
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Click to collapse
Even with overnight charging?
Sent from my Pixel 2 XL using Tapatalk
Yep, wake up, look at phone: 98%.
jordanl17 said:
Yep, wake up, look at phone: 98%.
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Click to collapse
That's really strange!
Sent from my Pixel 2 XL using Tapatalk
that happened top me on my first charge
just give it a couple charges it will start going to 100
I have to say battery life is great for me on pixel 2 xl. every time i charge it will go all the way to 100 %.
Hmm, I've charged it overnight for awhile now and it still won't get to 100%. It'll say that it's fully charged but will just show 98%
Experienced the same thing on my Pixel 2 XL. I did manage to fix it by powering the phone off for 10mins with it plugged in/charging. Once rebooted it showed 100%. Otherwise it will stay at 98 or 99% forever...
Strange thing happened yesterday. It finally charged to 100% and 5 minutes later I unlock the phone and its back down to 99% while still plugged in to the OEM wall charger (showing charging rapidly).
Copy and paste from my post in the Real Life Review section:
I would leave my 2 XL charging overnight (stock charger and cable) and when I wake up around 7-8 hours later, the percentage would either be 97%, 98%, or 99%. I've rarely seen my phone go to 100% since getting it on the 18th.
Whenever the battery hits 50% and I go and charge it mid-day, it would take a painfully long time to charge up after around the 85% mark (the general consensus and expected). I would check and it would be at 99%. After around 10 minutes, I check again and it shows 98%.
Needless to say, I disabled "show battery percentage". If the battery icon is full, then it's 100% to me.
I have this with my 2 xl too. It'll stop at 98-99, and if I unplug/plug back in a few times or reboot a few times it'll eventually get to 100. But it'll drop from 100 only after a few minutes even unused. Not sure if by design or a minor hardware issue.
Mine was charging overnight to 100% now for the last 2 or 3 days it's only been going to 98% overnight. Battery life is still good though.
I was wondering of was something to do with Battery Stats, maybe needs cache cleared or resetting somehow.
Actually I cannot even get mine to charge to 100%
saragez said:
Anyone having an issue with their phone only charging to 98%? It will only each 100% if I unplug it for a bit once it reaches 98% and then plug it back in.
Click to expand...
Click to collapse
Actually I cannot get mine to charge to 100 percent except two charges ago. That being said there must be something wrong as using the white charger and cable to go from 2% - 98% it took more than 5 hours ! I cannot get it to go past 99 % and I have been charging with phone off then with on and then according to Google support tried safemode but still no difference. Highly frustrating for a $1k phone. I finally shut phone off for the last 20 minutes and then checked the charge and it is now at 100% but what a battle and a SLOW SLOW charging phone.
I never charge mine to 100%, I usually take it off the charger around 85%. Not had any battery problems, don't think it's ever necessary to hit 100%.
I've had the opposite. Wake up it's 100. Listen to music on the way to work for about an hour (bluetooth). When I get there it is still 100 percent. Put it in pocket for another hour, check phone, 96%.
I turned off my phone when plugging it in last night hoping to make this go away.
When I turned it back on this morning... still only 98%...
saragez said:
Anyone having an issue with their phone only charging to 98%? It will only each 100% if I unplug it for a bit once it reaches 98% and then plug it back in.
Click to expand...
Click to collapse
yes, mine started around a week ago (black 64GB) today as soon as i unplugged it dropped to 98% used it for a minute n it went to 95% sometimes the phone wont even charge to 100%

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.

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