If your battery level display is abnormal, the battery level jumps erratically or decreases very rapidly in a short period of time, follow the instructions below:
1. If your battery level display is abnormal while charging, it is recommended that you plug your charger into a different wall socket and ensure that you are using the charger that came with your phone.
2. If you are in a cold environment, the chemical activity of the battery will decrease and as a result, the battery level will display abnormally. When the temperature rises, the battery will begin to work normally again.
3. If your battery level display is abnormal at normal temperatures, try restarting your phone.
If the problem persists, back up your data and take your phone and the proof of purchase to an authorized Customer Service Center for assistance.
Tips:
The optimal working temperature for your phone is from 0°C to 35°C. Overly low or high temperatures may negatively affect the performance of the battery.
Related
i hv bnattery problem for 3-4 month
still cannot solve the battery problem
i think i have done some wrong steps in the battery calibration
when my battery is fully charged in a battery changer(charger for battery only)
when i put the battery into the phone, it's shows that there is about 30% of battery
when i further use the battery, the battery level rise (without charging!) to 100 then drop to 0 and turn off
the time that the phone can use from 100% to 0% is quite short
when every time after charging, the battery level is 100%
it won't charge to the "real" full battery level, ie ~30% (SORRY FOR MY POOR ENGLISH)
how should i calibrate?
i used the battery calibration app, but no use.
Charge to 100 then use battery calibrator from market very simple
Sent from my SCH-I500 using XDA
If your recovery is ClockWorkMod, then there is an option to "Clear Battery Stats". Just try to see whether it helps.
~Cheers
It's a few days late, but battery calibration is unnecessary on modern batteries (Lithium). All the apps do is delete a small file that records power usage, they do not affect battery life in any way. This file is cleared automatically (by the system) when the phone is fully charged.
Further, full charge/discharge cycles will actually have a net harmful effect on your battery life. A lithium ion battery has a limited number of charge/discharge cycles it can sustain before becoming more effective at being a paperweight than powering anything. The full cycles you are doing simply eat into the battery's overall life expectancy.
For instance, it is better to charge from 50% to 100% multiple times than it is to go from 0 to 100 once.
Personally, I would just replace the battery.
I would suggest u to calibrate the battery in the clockworkmod recovery too
if this wont has any effect take into consideration that your battery might be damaged
i faced this problem one year ago with a galaxy spica the battery was shown as full and after a restart it was almost empty and calibrating the battery did not had any effect
so have a try and report afterwards
If, after rooting or more likely that case after flashing a new rom, you often have battery reporting errors (as mentioned above), and re-calibrating the battery along with some steps I will outline for you below will ensure that your battery is getting a full charge, and the battery reporting accuracy is right on. I run my device in performance mode all the time, and with a CPU overclock of 1.25GHz and various tweaks, I have about a day an a half to a day and a quarter of full runtime from my battery. This is with moderate to heavy usage (calls, emailing, text, gaming, web browsing, etc.) so you should have no problems getting acceptable battery performance after following these steps:
1. Take the case off your device (one of the latter steps involves taking the battery out from the phone while it's plugged in. Make sure your case won't stand in the way.)
2. Install Battery Calibration app from the market
3. Plug in your device to charge while it's on, wait till it gets to a 100%
4. When the charge is 100%, open the BatteryCalibration app and lookup what the charge is in MV while at 100%. Write it down.
My Atrix 2 was showing ~3400MV while at 100%, which is definitely not the maximum capacity.
5. Discharge your device completely until it shuts off.
A good way of doing this quickly is by turning on wifi, and a video player.
6. Without turning on the phone plug it into a wall charger and let it get to 100%
7. When it's at 100%, without unplugging it from the wall charger, take off the battery cover, and take the battery out.
Your phone will "reboot" and show a Missing Battery icon.
8. Without unplugging the phone from the wall charger or turning it on, put the battery back in and wait until the phone recognizes the battery.
9. Your battery should now be recognized by the phone, and showing a charge % significantly lower than 100%.
Mine showed only 5%.
10. Let it sit there charging for 2-3 hours (or more).
My phone wouldn't charge past 10%, but yours might. The numbers don't matter much as the phone is definitely getting additional charge that could have been lost while flashing ROMs, etc.
11. After 2-3 hours (or more), turn the phone on while holding the volume down button and get into CWM.
Do not disconnect it from the charger still!
12. Wipe battery stats in CWM, reboot.
Do not disconnect it from the charger still!
13. When the phone turns on, go into Battery Calibration app again and look up your MV numbers -if you were like me, they should be significantly higher than before. After this whole process I had 4351MV at 100%, comparing to 3400MV before calibration.
Do not disconnect it from the charger still!
14. Before going to sleep - Install Watchdog Task Manager Lite from the market. Go into it's preferences, set CPU threshhold to 20%, check "Include phone processes", check "Monitor phone processes", check "Display all phone processes", set system CPU threshhold to 20% as well.
Do not disconnect it from the charger still!
15. Make sure your wifi and data connections are off. Now finally unplug the phone from the charger.
Go to bed, let your phone sleep too.
16. Success! Next morning check where your battery % is at and if you followed the instructions correctly / got lucky like me, your battery life should be 90% or more.
I went to bed with 98% and woke up to 94%. So, I consider this mission a success.
Sent from my Atari Falcon030
hi guys, just wanted to share a very handy device i have come across that i really like. I have an extra battery and cradle, however i dont trust the charging capabilities of the cradle once it reaches full charge. I know the device itself will slow down and trickle charge once it reaches full capacity, but in the cradle im afraid of overcharging the battery. anyhow, i began looking for a timing device to prevent this. I came across this item
http://www.amazon.com/Belkin-Conser...=1421085461&sr=1-1&keywords=belkin+timer+plug
it has a half hour setting, a 3 hour setting, or a 6 hour setting. i began to find myself using this, not only for the cradle, but when i go to bed at night. i connect it to my phone. 3 hour charge, then it shuts off. im surprised these arent more prevalent. in fact, belkin was the only one i could find, (short of those xmas light dial timers lol). let me know what you think
I've been using the cradle and extra battery for a while now. No issues. I swap it out daily(well until I got my PMA sticker)
Even before then, I noticed no issue with poor battery performance or life.
Here's some helpful info from Battery University website:
Simple Guidelines for Charging Lithium-based Batteries
A portable device should be turned off while charging. This allows the battery to reach the threshold voltage unhindered and reflects the correct saturation current responsible to terminate the charge. A parasitic load confuses the charger.
Charge at a moderate temperature. Do not charge below freezing.
Lithium-ion does not need to be fully charged; a partial charge is better.
Chargers use different methods for “ready” indication. The light signal may not always indicate a full charge.
Discontinue using charger and/or battery if the battery gets excessively warm.
Before prolonged storage, apply some charge to bring the pack to about half charge.
Over-discharged batteries can be “boosted” to life again. Discard pack if the voltage does not rise to a normal level within a minute while on boost.
Go here for more detailed info: http://batteryuniversity.com/learn/article/charging_lithium_ion_batteries
I have been reading these days that some of you are starting to replace the battery of the Axon 7 after 1.5-2 years. This is something we all have experienced with phones, laptops, wireless devices, etc. About 2 years ago I researched on batteries and finally discovered how to avoid the degradation in Lithium-Ion batteries. I have applied it to my Dell XPS 13 Laptop and my Axon 7 with excellent results. Due to the recent proliferation of battery replacement I think this guide can be useful to extend the useful life of your battery.
Battery wear is something that can be reduced to almost nothing with proper charging habits. But there are some urban legends out there completely false. Lets review all them:
Do NEVER charge it over 90%: TRUE. The battery wears a lot when charging the last 10%. actually charging up to 90% takes about 10% of a degradation cycle while the last 10% takes 90% of the degradation cycle. Charging to 90%, only this trick, can reduce the wear of your battery to 1/10 or even more if you stop at 80%. I use to stop at 84%.
Do NEVER drain your battery completely: TRUE. The high current required to pull the energy stored in the battery when the level is so low requires more time per energy unit and that initial 10% wears the battery excessively. So taking care of that will save your battery too. I use to set low battery mode at 15% but I always avoid being so low. Please note that leaving the battery drained for too long can make it impossible to charge. IMPORTANT: If you are not going to use a device for some time, leave battery between 40-70%, not more, not less. If you do not do that, you can have an ugly surprise in case you need it again.
Quick Charge is bad for batteries: FALSE. It is actually the opposite. QC is a lot healthier since the battery is not heated for a long time. Heat is a problem too for the battery. So, try to avoid old charging units as possible and use only QC 3.0 chargers for car and home as much as possible.
Short charging sessions damage the battery: FALSE. A number of small charging sessions in the healthy region between 20-80% battery level is healthier than a long session for several reasons, the most important is that the battery temperature never rises that much.
I have been doing this in my devices and my Axon 7 retains the same energy storage as new after 18 months of healthy charging habits. These advises are also applicable to laptops and any other device using a Li-ion battery. As you can see, leaving your phone plugged at night will kill your battery very quickly the same way a laptop battery wears quickly when left plugged. I am lucky my Dell XPS 13 has a battery control software/firmware that allows charging to stop at a desired value automatically so I can have it plugged without actually charging. I was looking for a similar solution for the Axon 7 and I found it some time ago.
It was very annoying being on top of the device taking care of the battery level when charging. There are some apps out there that monitors the battery level while charging and signal an alarm when the desired maximum charge level is reached. But we are lucky!!!! The latest Custom Oreo Kernels for the Axon 7 support the charging_enable switch and we can use now Battery Charge Limit App to modify the max battery value. Two main values can be set, the max allowed charge and the recharge level. The first one is the most interesting since the charging will stop at that level. I have 84% set here but any value between 80%-90% is safe and healthy for your battery. The second value tells the system to avoid starting a charging session if the value is still above the second threshold. It is designed to avoid rapid charge/discharge sessions. Usually a value between 4-8% under the max value is safe and healthy. I have this second value set to 79%.
With this daemon your battery will never reach 100% and with it you will avoid excessive battery degradation. It worked for me so I hope you could benefit of it too. On the other side, just avoid drain your battery too much and do not fear short charging sessions during your car commuting time or while in the shower, etc... These little tricks sum and you will save the money and damages in your unit replacing a battery you probably could have avoided with proper battery care.
Cheers!!!!
Some are not false urban legends at all. On the contrary I see lots of false claims with no source evidence.
Limiting by percentage still allows the battery voltage to reach higher shorter lifespan voltage. See that limit apps thread for discussion on limiting by voltage through Tasker instead. Further do you know what voltage that percentage idles at? It varies by device implementation setup.
Here's some information on voltage level health.
"Additionally, when the cathode voltage rises past 4.2 V, the electrolyte begins to oxidize (and ultimately decompose). This effectively limits present-day lithium-ion batteries to a maximum voltage of 4.35 V with the understanding that the “bad stuff” begins to occur past 4.0 V, and becomes unsafe past 4.35 V."
https://qnovo.com/why-battery-vendors-are-hitting-the-wall
Got a reliable source for quick charge not harming battery life? I've only seen marketing material and such claims repeated but not any research or scientific sources.
Sent from my ZTE Axon 7 using XDA Labs
Infy_AsiX said:
Some are not false urban legends at all. On the contrary I see lots of false claims with no source evidence.
Limiting by percentage still allows the battery voltage to reach higher shorter lifespan voltage. See that limit apps thread for discussion on limiting by voltage through Tasker instead. Further do you know what voltage that percentage idles at? It varies by device implementation setup.
Here's some information on voltage level health.
"Additionally, when the cathode voltage rises past 4.2 V, the electrolyte begins to oxidize (and ultimately decompose). This effectively limits present-day lithium-ion batteries to a maximum voltage of 4.35 V with the understanding that the “bad stuff” begins to occur past 4.0 V, and becomes unsafe past 4.35 V."
https://qnovo.com/why-battery-vendors-are-hitting-the-wall
Got a reliable source for quick charge not harming battery life? I've only seen marketing material and such claims repeated but not any research or scientific sources.
Click to expand...
Click to collapse
Thanks for the info. However it is not easy to control the voltage of the cathode and the OP guide tries to use the available tools.
If you never fully charge how would you know if it's capacity is still near maximum?
I've kind of followed this idea for a while now ..
I always charge to a full 100% but never let the battery go completely flat ...
My Moto G is still running the same battery from new ...
My Axon 7 running Oreo is getting 4 days before it needs to be charged at normal usage..(recharge @ 15%) at the end of day 4
I get 6 days in standby
Oki said:
Quick Charge is bad for batteries: FALSE
Click to expand...
Click to collapse
I switched to old weaker chargers (0.5 - 1.0 amp) as there's almost no noticeable heat at all while charging, and I've found this extends the battery life as well. If any/all heat is bad, then aren't short bursts of high heat (3.0 amp QC) worse than long periods of little/no heat (0.5 - 1.0 amp) ?
Sure...
Most all of those "tips" are hogwash.
Modern day charging is handled by the phone. If there's something that hacked that algorithm in my phone, then so be it. :fingers-crossed:
Few years ago I did some research on Lithium-Ion batteries (which behave differently from other kind of batteries, such as lead acid ones for example) and I second all the conclusions by OP. If you are interested on the matter and to understand how batteries work, check this site: https://batteryuniversity.com/learn/ the explanations are crystal clear.
Disclaimer: I have no whatsoever association with the website.
As is known, in android devices, there is no charging process up to the physical capacity of the battery in the battery charging process. The Android system charges 70-80% of our battery, depending on the physical capacity. I'm looking for an application or Magisk module that can change these limits. To remove the limit set by the system by default and use the physical battery capacity of the device. I am aware that this process will shorten the battery life of my device.
Th
Better go by voltage not %.
Better read the white papers for that particular cell before you begin. I also suggest you autopsy an old "bag" Li. You'll be amazed how flimsy they are and with only a goofy plastic bag to seal it.
Overcharging an Li can easily turn into a thermal runaway "event".
The charge curve is written in blood especially Samsung's
Top charging can also cause Li plating which can degrade an Li rapidly and potentially cause a membrane breach ie an event.
The higher the charge, the more memorable the event will be...
Got this device around a week ago and I'm finally daily driving it. I've noticed a big issue though... I can't charge the device past 80% when its turned on. It stops itself from charging it seems like. I have to turn off the phone completely, and plug it in when powered off to get it to 100%.
Is there a setting I have checked or something? maybe a Kernel Tweak I don't know about that could be causing this that I could change/reverse/modify?
Thanks!
KaptinBoxxi said:
Got this device around a week ago and I'm finally daily driving it. I've noticed a big issue though... I can't charge the device past 80% when its turned on. It stops itself from charging it seems like. I have to turn off the phone completely, and plug it in when powered off to get it to 100%.
Is there a setting I have checked or something? maybe a Kernel Tweak I don't know about that could be causing this that I could change/reverse/modify?
Thanks!
Click to expand...
Click to collapse
Turn off optimized charging.
ohhhhhhh. Epic. Thanks
It's not a good idea to charge with screen on especially in high temperatures or in direct sunlight. You can cause hardware damage like this... auto thermal shutdown may not engage fast enough to save the device.
In general charging while using skews the charging curve, increases charging time and battery stress. These phones have a fixed heat sinking capacity which cases and glass screen protectors further compromise.
Constant operation with battery levels near 100% will impact battery longevity noticably.
Keep watch for any signs of case bulging. It indicates battery swelling/failure. Replace it immediately if this happens. Other signs of a battery failure are a sharp drop in capacity, erratic fast charging or failure of fast charging to engage. A swollen battery can destroy the display.
The risk of a thermal runaway event increases exponentially with a failed or degraded Li.
Replace them when their capacity falls below 80% of new to avoid a failure.
blackhawk said:
It's not a good idea to charge with screen on especially in high temperatures or in direct sunlight. You can cause hardware damage like this... auto thermal shutdown may not engage fast enough to save the device.
In general charging while using skews the charging curve, increases charging time and battery stress. These phones have a fixed heat sinking capacity which cases and glass screen protectors further compromise.
Constant operation with battery levels near 100% will impact battery longevity noticably.
Keep watch for any signs of case bulging. It indicates battery swelling/failure. Replace it immediately if this happens. Other signs of a battery failure are a sharp drop in capacity, erratic fast charging or failure of fast charging to engage. A swollen battery can destroy the display.
The risk of a thermal runaway event increases exponentially with a failed or degraded Li.
Replace them when their capacity falls below 80% of new to avoid a failure.
Click to expand...
Click to collapse
99.9% of the time I'm charging, the screen is off and I'm watching tv before bed. I'll unplug at 100% and go to bed. I also won't plug in until I'm under 15%.
I work in cell phone whole sale and repairs, so one thing I understand well is taking care of a device.
But, disabling that setting recommended above, it still stops charging at 75% entirely and never goes to 100 unless I turn it off entirely
KaptinBoxxi said:
99.9% of the time I'm charging, the screen is off and I'm watching tv before bed. I'll unplug at 100% and go to bed. I also won't plug in until I'm under 15%.
I work in cell phone whole sale and repairs, so one thing I understand well is taking care of a device.
But, disabling that setting recommended above, it still stops charging at 75% entirely and never goes to 100 unless I turn it off entirely
Click to expand...
Click to collapse
If the screen is on it may not charge at all.
This is normal.
Cycling the battery like you do stresses it and will reduce its lifespan.
Li's like frequent mid range power cycling.
Not under 30% or over 80%
If it didn't use to behave like this the battery may have degraded. 1-2 years is a typical lifespan for a heavily used Li. Approximately 200 full charge cycles.
Replace when it degrades to less than 80% of its original capacity to avoid a failure.
This phone has only been out since January 2021, so its not a batter degrade issue. Plus, it was pulled brand new out of the box like this. You also didn't read what I said. I'm not using it while charging at all. Its sitting on a table next to me while I'm watching tv or gaming on my PC/Switch. I'll check it once in awhile to see battery percentage and it will stop at 75%, then discharge as if its not plugged in at all. I have to turn the phone OFF COMPLETELY to charge it to 100% once I get to 75%
I'm assuming software issue. when I had GSI roms on the phone, it worked fine.
KaptinBoxxi said:
This phone has only been out since January 2021, so its not a batter degrade issue. Plus, it was pulled brand new out of the box like this. You also didn't read what I said. I'm not using it while charging at all. Its sitting on a table next to me while I'm watching tv or gaming on my PC/Switch. I'll check it once in awhile to see battery percentage and it will stop at 75%, then discharge as if its not plugged in at all. I have to turn the phone OFF COMPLETELY to charge it to 100% once I get to 75%
I'm assuming software issue. when I had GSI roms on the phone, it worked fine.
Click to expand...
Click to collapse
Li batteries can fail at any time.
Symptoms; diminished battery capacity, erratic fast charging. Any signs of phone swelling, usually the rear cover is a battery failure in progress. Replace immediately.
If the phone is drawing more current than the charger and/or the power controller can supply, it will drain the battery.
It may be a software, firmware or hardware issue...
Check all settings, disable all power management. Enable fast charging (toggle on/off 3 times then leave on).
Clear system cache and do a hard reboot.
Return associated updated apps to their factory loads.
If you did any major firmware (OS) updates do a factory reset.
A defective/improper charger or cable; try known good Samsung charger/cable.
Defective C port PCB.
A failed mobo.
Time to send it in for service or replacement.
blackhawk said:
Li batteries can fail at any time.
Symptoms; diminished battery capacity, erratic fast charging. Any signs of phone swelling, usually the rear cover is a battery failure in progress. Replace immediately.
If the phone is drawing more current than the charger and/or the power controller can supply, it will drain the battery.
It may be a software, firmware or hardware issue...
Check all settings, disable all power management. Enable fast charging (toggle on/off 3 times then leave on).
Clear system cache and do a hard reboot.
Return associated updated apps to their factory loads.
If you did any major firmware (OS) updates do a factory reset.
A defective/improper charger or cable; try known good Samsung charger/cable.
Defective C port PCB.
A failed mobo.
Time to send it in for service or replacement.
Click to expand...
Click to collapse
It's a standard OnePlus feature at work.