Hello!
so, I don't know why i didn't post my problem before but, here I am.
I have two xiaomi mi a2 lite international version bought in argentina, one with android stock fully upgraded and the other with havoc.
the problem is:
sometimes the battery charges at like 1400ma (or something along those lines) and the majority of the time charges at 500ma and sometimes 0ma or even -100ma (this info is taken mostly from accubattery)
I've already changed the charging board on both(for other reasons) but this didn't solve the problem
I have 3 chargers (each with its own cable) and all of them behave the same.(i could have tree ****ty cables? could be, the cables are not the expensive ones)
here some screenshots: accubattery and at the bottom of the lock screen on the havoc ROM
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for what i see accubattery always is a lot lower on the mA compared with the lock screen
if anyone have a solution or troubleshooting process to check whats happening i will appreciate it.(this is going for like for 3 months)
(I'm comfortable with disassembly and probing with multimeter if necessary / rooting / formating)
----edit----
sometimes when it shows negative numbers and on those cases does not charge or does very slowly
sometimes the phones charge like 5% on 2 hours or so, and this happens most of the time on the stock firmware phone, the havoc one always has been more reliable even before installing havoc
thank you in advance
PS:sorry for bad english c:
You understand that you won't get full charge rates with the screen on? The power controller ramps down the battery charge current as soon as the display is on to protect the battery.
Accubattery will momentarily display the off rate for about a second after you turn on the display; it's sampling rate is once a second. Battery history gives roughtly accurate screen off charge amount and time.
Many fast chargers will not engage if the battery start temperature is too low. Best start temperature for Li's is 82-90F, 72F minimum.
If battery temperature gets too high fast charging will disengage.
The brick and cable must support fast charging by meeting that device's protocols.
If it's a graphene battery it's low temperature parameters are likely similar.
blackhawk said:
You understand that you won't get full charge rates with the screen on? The power controller ramps down the battery charge current as soon as the display is on to protect the battery.
Accubattery will momentarily display the off rate for about a second after you turn on the display; it's sampling rate is once a second. Battery history gives roughtly accurate screen off charge amount and time.
Many fast chargers will not engage if the battery start temperature is too low. Best start temperature for Li's is 82-90F, 72F minimum.
If battery temperature gets too high fast charging will disengage.
The brick and cable must support fast charging by meeting that device's protocols.
If it's a graphene battery it's low temperature parameters are likely similar.
Click to expand...
Click to collapse
yes, i know that, but as i mention on the post, sometimes it shous even negative numbers and on those cases does not charge. and i forget to mention, sometimes the phones charge like 5% on 2 hours or so, and this happens most of the time on the stock firmware phone, the havoc one always has been more reliable even before installing havoc
Use know good brick/cable.
Consider a battery failure if capacity has diminished significantly especially quickly.
Any swelling is a battery failure.
Otherwise a charge port pcb or mobo failure.
If happening on more than one device, is the brick getting clean AC? Hot/neutral vs hot/ground wires are correct on wall socket? Voltage correct? Generally they are fairly insensitive to voltage fluctuations but if it falls too low they will charge slowly.
A power surge may have damaged one or more chargers but normally they are just dead when that happens.
blackhawk said:
Use know good brick/cable.
Consider a battery failure if capacity has diminished significantly especially quickly.
Any swelling is a battery failure.
Otherwise a charge port pcb or mobo failure.
If happening on more than one device, is the brick getting clean AC? Hot/neutral vs hot/ground wires are correct on wall socket? Voltage correct? Generally they are fairly insensitive to voltage fluctuations but if it falls too low they will charge slowly.
A power surge may have damaged one or more chargers but normally they are just dead when that happens.
Click to expand...
Click to collapse
capacity its ok
not swelling
port pcb changed recently
mobo maybe
for what i know on my house, hot-neutral are inverted(yeah idk what was thinking the dude that wire this place) this could be a problem?
will try charging with an stabilizer and check if voltage fluctuation is a problem.
PS: thank you a lot
thiagosch said:
capacity its ok
not swelling
port pcb changed recently
mobo maybe
for what i know on my house, hot-neutral are inverted(yeah idk what was thinking the dude that wire this place) this could be a problem?
will try charging with an stabilizer and check if voltage fluctuation is a problem.
PS: thank you a lot
Click to expand...
Click to collapse
Inverted is the same for the charger.
Makes you wonder about who did the wiring though. Might not be a bad idea the check the main breaker box sometime.
Something putting high frequency spikes on the line might mess with it.
Try another circuit in the house.
blackhawk said:
Inverted is the same for the charger.
Makes you wonder about who did the wiring though. Might not be a bad idea the check the main breaker box sometime.
Something putting high frequency spikes on the line might mess with it.
Try another circuit in the house.
Click to expand...
Click to collapse
sometime ago i checked the box for this particular reason, i was measuring earth(because some home appliances were shocking me, yep also some grounds were disconnected and thrown inside a junction box) and found out that they were inverted, and its from the main breaker input, i could fix it but i don't trust that no one is going to flip the outside main switch on while i have a wire on my hand.
oh... high frecuency spikes could come from a fridge without ground? I've never checked the fridge socket because is behind it, may well be running without ground...
--edit--
just checked, fridge has ground
thiagosch said:
oh... high frecuency spikes could come from a fridge without ground? I've never checked the fridge socket because is behind it, may well be running without ground...
Click to expand...
Click to collapse
Probably not. Try a different circuit though.
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I have been facing constant battery drain for sometime now. Even while charging, battery keeps on draining without much of heavy use.
Plus it may sound weird, but this constant drain is not continuous for days. Some days battery works fine, but some days it just won't charge. For example, last night i kept my phone on charging, but in the morning battery was around 75% charged instead of 100% (charge time was around 7-8 hours)
I am using original charger supplied to me by this phone and the phone itself is unrooted/ stock rom.
Waiting for replies
Sent from my LG-E988 using xda app-developers app
ja.andro said:
View attachment 2626542
I have been facing constant battery drain for sometime now. Even while charging, battery keeps on draining without much of heavy use.
Click to expand...
Click to collapse
Your battery sounds like it sucks.
I am using a method on my phone that shows me (about) how many mA is going in and out of the battery. An App called CoolTool amazingly loaded and complex app, which can do an overlay. I use this app for only One visual overlay, the mA display. (current)
I wont tell you how to set it up, because you will find it. I will tell you it shows how much power is being sucked up, and the reverse shows negative numbers when being charged , at least when being charged faster than it discharges. Set it to update every 30seconds, not a great update rate , but given enough time you can see what is going on. There is another program called "current widget" capable of faster updates, but does not do overlay (cause its a widget), It will work to show power on this here lg too, but i do not find it as usefull, and high update rates could take a bit more battery.
Speaking of charging faster than discharging, turn on the wifi and the screen and mabey some background garbage, then charge it up with either a lightweight wire (to much resistance) or a charger that does not have a good output. And it will use more power than you can put in So when charging on either of these apps that shows current, you eventually want to see actual Negative numbers like -1000 for a fast charge from the OEM charger.
So get a view going , and you can see what is happening. Not all the phones will show this current, and not very many programs do it, And with coolTool we also get to see it (overlay) when gaming, and watching movies. so it is a start to discovery. I have no affiliation with all these programs that i am ending up recommending, other than having been through google store hell for ages trying to find the right ones.
Thank you for the reply. Let me see if it helps
I appreciate your help, but i don't understand a word the app is trying to show me. I am currently using the app, and sometimes the charge goes up to 376mA down to -21mA while doing one time charge.
Is it normal? I don't have a spare charger to try it, but was using OEM charger. Stats i told was from the OEM itself.
Sent from my LG-E988 using xda app-developers app
ja.andro said:
sometimes the charge goes up to 376mA down to -21mA while doing one time charge.
Click to expand...
Click to collapse
So it probably is not your battery, it is probably the rate of charge.
This is a similar quantity that I will see when the "fast charge" is not going , there might even be a notification saying slow charge.
That happened to me 3 different ways.
1) when using a non-oem charger (including pc)
2) when using a different wire, the wires that did not work were either longer or weaker wiring.
3) just because fast charge did not kick in for some reason, disconnecting both sides and reconnecting worked.
I believe that the numbers your seeing , just like what i saw, are a 500mA type Charge rate, it is showing about 300mA (from the battery) when the phone (at least temporarily) is using about 800mA and the negative numbers (-21mA) when it is finnaly using less than the 500mA.
Turning the backlight down (a lot) and turning off ALL the other stuff that uses battery, can get the Use down to about 250mA , or turning it to screen off, where it should use very little.
Still without this fast charge, it isnt going to be a very happy experience, but it is possible to use.
Charger which i use
See the difference in charges and look at the time. (Note each time i took screenshot, i pulled the wall charger out of socket and put it back on. Shouldn't it be constant?)
Sent from my LG-E988 using xda app-developers app
ja.andro said:
View attachment 2628591
Charger which i use
See the difference in charges and look at the time. (Note each time i took screenshot, i pulled the wall charger out of socket and put it back on. Shouldn't it be constant?)
Click to expand...
Click to collapse
That is the 1.2A charger, there is also a 1.8A charger.
I do not think that the cool tool has any averaging, it is just a single sample. So it would be all over the place as the use of the phone and charging changes, it will be More the same when the exact same things are done. the exact same screen lighting, the same ammount of cpu use etc for long times. So it can easily vary 500, or under much user control of the phone you can get it to stabalise with +-100 swings.
I have most all of the apps and background data, and Mobile data, and all that stuff under control. You also now have one more app (the cool tool itself) that will be using power. that is why i mentioned controlling it to only 1 thing.
So it is all very normal to see such changes in the sampling, I spent a lot of time getting samples, to get a feel for everything. I dont write them down, but I know what gets it to change now, some things more than others. (some I can do without
You should still be able to shut off most of your apps temporarily and turn off unnessisary I/O and features, lower the light, and wait , and wait to see how the charge is working.
Yep i have already tried and done from past weeks. Some days it just works fine, but other days, it just sucks. I mean looking at your phone with battery going down exponentially in front of your own eyes and you out at office.
But yes, I'll try a 1.8A charger in a few days. will get back to you then
Sent from my LG-E988 using xda app-developers app
Hi guys,
Just wondering if you have noticed that charging a device whilst off seems no faster than when the device is on. Do you experience that too?
I am using the Port Power charging cable with the Boise 7port charger and it still takes approx 2.5hrs for a full charge.
Keen to hear how long your charging takes whilst on and off.
Thanks
GLO said:
Hi guys,
Just wondering if you have noticed that charging a device whilst off seems no faster than when the device is on. Do you experience that too?
I am using the Port Power charging cable with the Boise 7port charger and it still takes approx 2.5hrs for a full charge.
Keen to hear how long your charging takes whilst on and off.
Thanks
Click to expand...
Click to collapse
HTC is known for slower charging rate because battery is sealed behind motherboard, it's not possible to replace as you would need a whole new motherboard if you accidentally break it.
Stop worrying about how long it takes to charge, take a look at the Anandtech website review for HTC One M8, look at the graph chart comparing charging rate with other phone, it's very similar but just slightly slower than others.
Charging your phone faster than intended will harm your battery life, just be happy and get used to it.
inferol said:
HTC is known for slower charging rate because battery is sealed behind motherboard
Click to expand...
Click to collapse
Forgive my ignorance, but how would that affect charge rate?
---------- Post added at 11:48 AM ---------- Previous post was at 11:33 AM ----------
GLO said:
Just wondering if you have noticed that charging a device whilst off seems no faster than when the device is on. Do you experience that too?
Click to expand...
Click to collapse
That is going to vary from one user to another, due to varying degrees of idle battery usage; which in turn depends on your specific reception quality (poor network reception results in battery drain), features turned on (WiFi, Bluetooth, etc.) and background syncing of apps, email, etc.
In reality, the phone will always take longer to change while on versus turned off, since its always going to consume some degree of power even while idle. But if your idle battery usage is rather low, the effects of that may be relatively minor.
For example, my idle battery usage is around 2% per hours. If it takes around 2 hours to "fully" charge (I almost never drain to empty of even, but charge frequently) then the idle battery usage during that time is 4%. Just rounding numbers off to simplify the math, if it takes 2 hours to charge 100%; then that means charge rate is 120min/100% = 1.2 min per percent. Which means the "additional" charge time needed to offset the idle battery usage is 1.2min/percent * 4% = 4.8 min. Therefore, for this example, the "extra" charge time for on (idle) versus off is less than 5 minutes. Again, the math is simplified, but that's pretty close.
Now, if your idle battery usage is higher (and I know folks are always commenting about high battery drain during the day) than that means your charge times are going to be impacted much more, resulting in longer charge times on versus off.
redpoint73 said:
Forgive my ignorance, but how would that affect charge rate?
---------- Post added at 11:48 AM ---------- Previous post was at 11:33 AM ----------
Click to expand...
Click to collapse
Never said that it would affect the charge rate. It's just that HTC changed the charging rate to be slightly slower than other devuces because battery is not user friendly replacement and it will help to keep the battery performance to remain consistent throughout the years. You can however use quickcharge to charge faster but I'm talking about the origianl OEM charger is optimised to keep the battery performance for years
All I'm saying is the charging rate is very similar with other devices, just don't bother trying to achieve fastest charging rate, you may do more harm to your battery than having quick burst of energy to 100%.
inferol said:
Never said that it would affect the charge rate.
Click to expand...
Click to collapse
I see its a case of improper punctuation.
inferol said:
HTC is known for slower charging rate because battery is sealed behind motherboard,
Click to expand...
Click to collapse
It should have read:
HTC is known for slower charging rate. Because battery is sealed behind motherboard, . . .
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Thanks guys, for your replies.
My question arose from reading various articles on fast charge 2.0 and poor battery life since upgrading to Lollipop.
Some articles suggest a better gauge cable will maximise charge rate, which led me to leaning that a sync cable has its own limitations to, that can be overcome by earthing the centre pins to disable the sync component and allow for higher charge rate.
I picked up the Bolse 7 port Charger with Smart IC which is supposed to detect the maximum charge rate and stop charging when 100%
Recently I picked up the PortaPowa charging cable which has a larger gauge cable.
That being said, if the device is off, then the Bolse charger may not be able to detect which device it is. If the device is on, then maybe it could detect the device type and as such charge accordingly.
GLO said:
That being said, if the device is off, then the Bolse charger may not be able to detect which device it is. If the device is on, then maybe it could detect the device type and as such charge accordingly.
Click to expand...
Click to collapse
Not sure, but I believe the charge rate is determined by the battery (smart circuitry on the battery itself), not the device; and therefore may not matter if he device is on or off.
If you think about it, there must be some charging management going on while the device is off. Otherwise, charging while off would not work properly at all.
GLO said:
I picked up the Bolse 7 port Charger with Smart IC which is supposed to detect the maximum charge rate and stop charging when 100%
Click to expand...
Click to collapse
All Li ion chargers stop charging at 100%, otherwise the battery would overheat and catch fire or explode.
Hello,
I would like some insight on a problem that I am having with a Lenovo Vibe Shot Z90.
I just bought the phone two months ago during a trip I took to Singapore. It worked fine for about a month before the problem started. The phone never fell down, into water, overheated or anything like that. The problem started suddenly, without an apparent reason. Alas, the local Lenovo branch refused to honor the warranty, claiming that they only take in "EU models".
The problem is that the phone will not charge while it is turned on. It does not even "see" the USB cable getting plugged in. If I turn it off however, it charges just fine, all the way up to 100%. I also noticed that the battery drains faster, for no apparent reason, without any apps running. It most definitely is not a software problem, I did a hard reset at first, it did not work and then, just to be sure, I even flashed the latest official ROM using QFIL.
Do you reckon there is any possibility that the problem is caused by the battery, or is it definitely mainboard-related? If there is any chance that replacing the battery will solve the problem, I could order one online and I am competent enough to replace it myself, but I do not want to get into an ordeal if there is not even a remote chance that it would fix the problem.
Any suggestions welcome.
Thank you in advance.
et.e.f.gr said:
Hello,
Do you reckon there is any possibility that the problem is caused by the battery, or is it definitely mainboard-related? If there is any chance that replacing the battery will solve the problem, I could order one online and I am competent enough to replace it myself, but I do not want to get into an ordeal if there is not even a remote chance that it would fix the problem.
Any suggestions welcome.
Thank you in advance.
Click to expand...
Click to collapse
Have you tried using a more powerful charger?
Hovatek said:
Have you tried using a more powerful charger?
Click to expand...
Click to collapse
Yes. A bad charger was the first thing that I considered, so I tried another 2 A charger and then even tried it with a 50 A desktop PSU. It made no difference. There is no current flowing from the charger (PSU) to the phone at all once it is on. When I turn it off, it draws about 1.25 A, which is pretty normal.
et.e.f.gr said:
Yes. A bad charger was the first thing that I considered, so I tried another 2 A charger and then even tried it with a 50 A desktop PSU. It made no difference. There is no current flowing from the charger (PSU) to the phone at all once it is on. When I turn it off, it draws about 1.25 A, which is pretty normal.
Click to expand...
Click to collapse
You have to read about "USB PowerDelivery".
Alone PSU current efficiency has no effect on USB devices charging current.
Amount of current that the end device is able to absorb, is defined on the resistors (voltage dividers) which feeds the D+ and D- lines.
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Also read the Battery Charging Specification - Revision 1.2
sunblade said:
You have to read about "USB PowerDelivery".
Alone PSU current efficiency has no effect on USB devices charging current.
Amount of current that the end device is able to absorb, is defined on the resistors (voltage dividers) which feeds the D+ and D- lines.
Also read the Battery Charging Specification - Revision 1.2
Click to expand...
Click to collapse
I am aware that the device would not ever (normally) draw more current than it is supposed to, regardless of the PSU used.
I did check some of the resistors at the time before my original post and they did seem to fall within spec. Besides, the phone would charge normally once powered down, so I doubt that it was such a simple problem as a resistor. Alas, this is an old thread and long ago I decided that the phone was not worth my time anymore, so I threw it away and thus I cannot recheck the circuit again. This will hopefully be helpful to people with similar problems in the future.
I think this is a software issue. Please tell me what version of ROM and baseband you have?
I was playing a lot with different roms, and in some cases I had the same issue. Eg when phone was chargeed from PC it was very slow.
Hi,
i've just received my lenovo vibe shot.
After a full charge, it worked perfectly.
After a second charge, still working. And the it stopped. No led when i plug it. No charge, no power.
I tried a different usb cable. Then another charger. Still nothing.
Any idea ?
Thank you.
deschampst said:
Hi,
i've just received my lenovo vibe shot.
After a full charge, it worked perfectly.
After a second charge, still working. And the it stopped. No led when i plug it. No charge, no power.
I tried a different usb cable. Then another charger. Still nothing.
Any idea ?
Thank you.
Click to expand...
Click to collapse
As far I know, MAX77819 is charging the battery.
Using multimeter measure selected (PINK) test point and read if voltage vs GND is about 1.8V
sunblade said:
As far I know, MAX77819 is charging the battery.
Using multimeter measure selected (PINK) test point and read if voltage vs GND is about 1.8V
Click to expand...
Click to collapse
Thank you for your answer.
I'm not sure I will open the phone now as it is under warranty.
I'm also not sure that i would be able to open the phone as I don't see how to open it !
It 's kind of weird that nobody else seems to have this kind of charging problem. Bad luck I guess.
Same problem
I have exactly the same problem. Phone was purchased from tinydeal. Replaced ROM with international version because not been able to run Facebook and other applications. Working perfect for 1 month. Then suddenly stoped charging. When plugged indicator shows charging but percentage charged droped.
I was not able to use warranty because I cannot send products with lithium batteries internationally using regular mail.
The phone was at two service shops. They problem is this chip which should be responsible for charging is very difficult to replace. They could not repair it. Now I have ordered a motherboard from aliexpress for 70$. When the phone broke there were no options for purchasing motherboard.
Thank you for your post.
I have now sent the phone back (i did send it with regular mail !). Still wainting for replacement.
I hope i won't have the same problem again !
Let us know if you succeded to fix the problem.
Hi.
I had the same problem after my first boot. I bought in Aliexpress. My solution was (more or less) easy.
I don't know why, powerful charger didn't work, but my old 5v-500mA worked 30 mins after connected. Once I had 10% battery I used stock charger and thats all.... very strange... Probably something wrong in battery..... who knows.... I hope this helps next time.
Hi,
Really strange one and hoping someone can help.
I have the 10.1 Exynos, and I lose ~20% battery per day when I leave the tablet alone, even when it is switched off.
What I have tried,
1. Replacing the battery - same symptoms with a brand new battery
2. Replacing the Micro USB charging port - same symptoms with both batteries
I did a further experiment with both batteries, old and new,
1. Charge to 100%
2. Leave disconnect battery cable and leave the device for 48 hours
3. When I plug the cable back in, I have 99% charge on both batteries.
4. When I leave the device idle with the battery cable plugged in, again I lose about 20% per day when the tablet is off.
I'm really confused right now, and would like to resolve this issue so I can hand over the old tablet to a relative, as it is still a very capable device.
hello
switching off does'nt disconnet battery
some programs go on ( time, date, ..) with pseudo capacitive battery
a resistive element is still connected (a component is deffective)
regards
Understand, but 20% is a lot of battery use for an idle tablet.
Do you think there is any hope of fixing this?
Could it be something that can be re-soldered perhaps?
Are you rooted? Try Better Battery Stats. It can show what is running while it's supposed to be idle. Also, try Greenify.
Cheers,
Rich
Zico 10 said:
Understand, but 20% is a lot of battery use for an idle tablet.
Do you think there is any hope of fixing this?
Could it be something that can be re-soldered perhaps?
Click to expand...
Click to collapse
I am rooted, and no app shows up in battery stats BECAUSE THE TABLET IS DRAINING BATTERY WHILST IT IS SWITCHED OFF.
Please read the thread before you comment next time.
@Beut
Do you have any ideas??
Zico 10 said:
@Beut
Do you have any ideas??
Click to expand...
Click to collapse
Try to resolder the battery connector
Beut said:
Try to resolder the battery connector
Click to expand...
Click to collapse
Do you have any tips or guides on how to do this?
Would applying conductive wire glue work?
You can try but it doesn't make strong bond. The epoxy conductive glue may work if you don't know how to solder.
However, the silver conductive wire glue, sold in Amazon around $3/ 0.2 ml syringe works very well to fix the loose battery cables which causing intermittent power, restart, battery quick discharge ( actually not quick discharge: loose battery cables will cause the tablet read battery capacity incorrectly ).
If your battery drops then movement later it goes up or after restart, 99% you have a cracked battery connector on mainboard or loose battery cables.
This is the case, the cables doesn't make contact : two red cables ( positive ) have no contact, you will see the problem of not charging.
If one positive ( red ) or negative ( black ) cable loose its connection, your battery might drop 40 to 50% instantly.
If they're partly make contact, you might experience a boot loop as the tablet doesn't have enough power to start the system.
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This is the original battery cables before apply the glue
After applied glue, smear the glue to inside of cable as much as possible, clean with alcohol the extra conductive glue between cables , otherwise you will have shorted circuit and you might destroy the mainboard. Later on, you can remove the battery cables easily, that's why this conductive wire glue is not a perfect solution to substitute soldering.
I did fixed a Note 2014 today, it shut down at 28%. Applied the conductive glue to all six cables, reconnected it to battery connector and charger.
You can speed up the healing process by heating it with a hair dryer for a few minutes.
Do you know what I get ? The battery icon shows up with 88%, go up 60% when all cables make a solid contact to all pins of battery connector as the conductive glue fills up
all gaps between cable's terminals and pins.
switched off you mean you select the "Power Off" option?, or switched off meaning you press the power button and screen goes off?,
if the first option then I suspect when you charge your tablet its not "really" charging it trys to feed the battery but at some point it takes no more charge and it will fake the "100% charge value", and on a reboot it reads the stats again and says oh 70% charged, in anycase this could be because you are using a bad cable or a bad USB charger, try using the stock cable and charger if possible, if problems still exist try to reseat the battery by opening the tablet and unplug / replug the batter in.
if the second option then something is causing wakelock
!!!before touching the hardware!!!
Zico 10 said:
Hi,
Really strange one and hoping someone can help.
I have the 10.1 Exynos, and I lose ~20% battery per day when I leave the tablet alone, even when it is switched off.
What I have tried,
1. Replacing the battery - same symptoms with a brand new battery
2. Replacing the Micro USB charging port - same symptoms with both batteries
I did a further experiment with both batteries, old and new,
1. Charge to 100%
2. Leave disconnect battery cable and leave the device for 48 hours
3. When I plug the cable back in, I have 99% charge on both batteries.
4. When I leave the device idle with the battery cable plugged in, again I lose about 20% per day when the tablet is off.
I'm really confused right now, and would like to resolve this issue so I can hand over the old tablet to a relative, as it is still a very capable device.
Click to expand...
Click to collapse
!!!BEFORE TOUCHING THE HARDWARE!!!
TRY first just update or upgrading OS or maybe better downgrading/ flashing back to stock.
if doesn't work?
Then give a try "re-partitioning" your phone. Try searching for sometimes called "Repair Files"
You may need your "Brain" to do that. Google is "always there to help us" how.
coz I am not responsible for that. just giving my Idea
Goodluck!!! :good:
CarCE12 said:
!!!BEFORE TOUCHING THE HARDWARE!!!
TRY first just update or upgrading OS or maybe better downgrading/ flashing back to stock.
if doesn't work?
Click to expand...
Click to collapse
That was the first thing I did, and testing shows that the issue is definitely hardware related instead of software - for example, the battery will drain even when the device is powered off!
I have tried the advice of @Beut as well, however it still drains unfortunately.
I still have the tablet, but unfortunately it is largely useless to me. Though I still can't bring myself to throw it away.
I just got my 9pro for 3 days and as an curiosity I have diagnosed my device with oneplus care app and it shows that the battery is faulty should I ask for a replacement based on this results?
{
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That's disconcerting message.
What's the ambient temperature and how hard is it running? If it's not running a heavy cpu load and the ambient temperature is below 85°F, it shouldn't be as hot as 104°F
While Li's can tolerate up to 150°F operating temperatures in general, in phones a 104° battery temp reading is hot.
It's at the point where I would power off the phone.
Does it still have a good run time?
Once an Li gets below 80% of its original capacity it's not a bad idea to replace it.
Li's can form Li dendrites over time that can short out a cell, which be a very bad event. This is rare though. Any signs of or physical damage are grounds for immediate replacement as they can fail violently.
Replacements are generally cheap. Even my difficult to repair Note 10+ battery replacement cost is only $30.
blackhawk said:
That's disconcerting message.
What's the ambient temperature and how hard is it running? If it's not running a heavy cpu load and the ambient temperature is below 85°F, it shouldn't be as hot as 104°F
While Li's can tolerate up to 150°F operating temperatures in general, in phones a 104° battery temp reading is hot.
It's at the point where I would power off the phone.
Does it still have a good run time?
Once an Li gets below 80% of its original capacity it's not a bad idea to replace it.
Li's can form Li dendrites over time that can short out a cell, which be a very bad event. This is rare though. Any signs of or physical damage are grounds for immediate replacement as they can fail violently.
Replacements are generally cheap. Even my difficult to repair Note 10+ battery replacement cost is only $30.
Click to expand...
Click to collapse
The ambient temperature is 84 degree F, and the CPU isn't under any load as i am not doing any task,.
Salilsarkar said:
The ambient temperature is 84 degree F, and the CPU isn't under any load as i am not doing any task,.
Click to expand...
Click to collapse
I think they all show overheat in that app. Mine shows overheat in the ACCA app as well. Probably doesn't mean anything. I wouldn't worry about it.
Salilsarkar said:
The ambient temperature is 84 degree F, and the CPU isn't under any load as i am not doing any task,.
Click to expand...
Click to collapse
Replace it. It may only be a temperature sensor failure, hopefully in the battery.
Li's aren't worth taking a chance on as a runaway at the very least it will destroy the phone.
If it's discharging more than 2%@day with the phone power off completely replace it asap and do not attempt to charge it.
Never charge an Li that is near freezing... as it can trigger a firery runaway event.
Charging below 80F can cause Li plating which will permanently degrade the cell.
Never use water on a lithium fire as it reacts to water like burning magnesium, violently. Another reason they can be nasty if they explode near your skin. Not WP bad, but bad enough.
Agree, that app might be giving false alarm overheating scenario's...
blackhawk said:
Replace it. It may only be a temperature sensor failure, hopefully in the battery.
Li's aren't worth taking a chance on as a runaway at the very least it will destroy the phone.
If it's discharging more than 2%@day with the phone power off completely replace it asap and do not attempt to charge it.
Never charge an Li that is near freezing... as it can trigger a firery runaway event.
Charging below 80F can cause Li plating which will permanently degrade the cell.
Never use water on a lithium fire as it reacts to water like burning magnesium, violently. Another reason they can be nasty if they explode near your skin. Not WP bad, but bad enough.
Click to expand...
Click to collapse
I believe "overheat" is a simple bug. Mine shows the same at all times and battery temp is just fine.
Salilsarkar said:
The ambient temperature is 84 degree F, and the CPU isn't under any load as i am not doing any task,.
Click to expand...
Click to collapse
WTF? All of this model is like this?
Note, if it is running at 104F you can certainly feel that. No sensor needed.
Below is a nominal reading for my Note 10+ in 72°F or so ambient temperature.
Same thing here with CPU-Z and I didn't have a single overheating problem, I think it's a bug.
Hypnoz69 said:
Same thing here with CPU-Z and I didn't have a single overheating problem, I think it's a bug.
Click to expand...
Click to collapse
CPU-Z is known for doing stuff like that.
If it's the phone's app it's a different story.
I'm sorry the app is not available on the Play Store so I can't test with it.
Mine also shows the same with one plus care app. I think its a bug. Nothing to worry about.
DevChek gives a comprehensive temperature sensor readout of all sensors.
galaxys said:
Agree, that app might be giving false alarm overheating scenario's...
Click to expand...
Click to collapse
Not just OnePlus care app ,devcheck ,cpu-z every app is showing the same overheating notification ,but in actuality the device isn't even slightly warm on touch .
nickporwal said:
Mine also shows the same with one plus care app. I think its a bug. Nothing to worry about.
Click to expand...
Click to collapse
Mine shows this too ,is it happening with all the 9pro device?
Salilsarkar said:
Not just OnePlus care app ,devcheck ,cpu-z every app is showing the same overheating notification ,but in actuality the device isn't even slightly warm on touch .
Click to expand...
Click to collapse
That's not good. If it's across the board for this model it's a bad product flaw.
If those readings are used during the charge cycle it could really screw things up.
Hypnoz69 said:
I'm sorry the app is not available on the Play Store so I can't test with it.
Click to expand...
Click to collapse
Here you go:
blackhawk said:
That's not good. If it's across the board for this model it's a bad product flaw.
If those readings are used during the charge cycle it could really screw things up.
Click to expand...
Click to collapse
Maybe continuously declaring the battery as an overheat condition allows OnePlus more control over its charging in the Android OS? Have no idea. Just a random guess. It's likely a bug, but the "overheat condition" that is set could possibly be on purpose. Regardless, it shouldn't be showing the word overheat obviously.
blackhawk said:
That's not good. If it's across the board for this model it's a bad product flaw.
If those readings are used during the charge cycle it could really screw things up.
Click to expand...
Click to collapse
I have contacted some people who own this device and it seems all the 9 pro devicies are behaving the same ,most of them are giving the overheating battery status across various apps like cpu-z, devcheck, OnePlus care etc.
bulletbling said:
Maybe continuously declaring the battery as an overheat condition allows OnePlus more control over its charging in the Android OS? Have no idea. Just a random guess. It's likely a bug, but the "overheat condition" that is set could possibly be on purpose. Regardless, it shouldn't be showing the word overheat obviously.
Click to expand...
Click to collapse
It could cause charging to disengage or not engage at all. If it has fast charging it could completely skew the charging profile if that temperature input is used and could damage the battery. At lower temperatures (>50-72°F*) fast charging must not engage.
It could also trigger thermal throttling prematurely.
I would keep a close eye on it...
*not sure of the exact temperature that is the normal preset. Minimum of 82°F start charge temperature is best practice even when slow charging. It's an electrochemical reaction that needs heat to properly work.