Huawei P20 Lite bluetooth device battery level - Huawei P20 Lite Questions & Answers

Does Huawei P20 Lite support bluetooth device battery level indication in the status bar?
Because I can't see my BT headset battery level and can't find any settings to enable it.
Nvm. I am obviously blind. The battery level icon is there, it is just different than in Custom roms that I am used to. But I can't see the battery level in BT settings though... but i can live without that one...

Yes it does. I have JBL T450BT and there is also, after connection, battery level indicator.

pedro3731 said:
Yes it does. I have JBL T450BT and there is also, after connection, battery level indicator.
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Click to collapse
The battery level indicator in the status bar is really small. Is there another location where I can find this information?

Related

suggestions for battery life?

I have Sprint's Touch Pro....what are some settings I can apply that will extend the battery life or what ROM is best designed for battery life?
AznGunner said:
I have Sprint's Touch Pro....what are some settings I can apply that will extend the battery life or what ROM is best designed for battery life?
Click to expand...
Click to collapse
Backlight: Adjust the back light to the lowest setting that you can stand
(Start/Settings/System/Power/Backlight) Uncheck "Auto adjust
backlight. Then adjust the bar down to your comfort level.
(Start/Settings/System/Power/Advanced) On Battery power...
adjust the setting to the minimum 30sec/1minute
Wifi (if being used): Adjust wifi for battery life vice performance
(Start/Settings/Connections/Wireless Manager/Settings/
Wireless LAN/Power Mode). There's an easier way to get
here and i'm sure you figure it out.
Bluetooth: Just turn it off when not in use...same with wifi
Advanced Configuration Tool: Has settings that can be enabled for battery,
sd card, etc for power management
Other than these I have listed...is all I know of...hope this helps
by searching.
Thread closed.

Battery Status Icon Compared to About Phone

Has anyone else noticed the battery status icon seemingly displays less available battery power compared to the 10 block Battery Level in About Phone --> Status ?
Icon shows less than half full (about a third in the icon) when five blocks are filled (half full) ?
Which is correct ?
I agree with you - i am confused with which is correct.
The top battery icon is always less than the "About Phone" settings.
Maybe if we installed a 3rd party battery app....hmm....
Which one though ?? hmmm...
i think that they have an app on the market that displays percentage of battey left dont know the name of it though
joemax said:
Has anyone else noticed the battery status icon seemingly displays less available battery power compared to the 10 block Battery Level in About Phone --> Status ?
Icon shows less than half full (about a third in the icon) when five blocks are filled (half full) ?
Which is correct ?
Click to expand...
Click to collapse
maybe you could cross chek with the battery status from here.... from dialpad dial *#*#4636#*#* and then go to battery status . you can croos chek from here which is most accurate
Useful code, many thanks, will do this next time the battery is low.
Is there a list of these you could share ?
joemax said:
Useful code, many thanks, will do this next time the battery is low.
Is there a list of these you could share ?
Click to expand...
Click to collapse
No problem. Well , i only used the one i gave you to lock my phone on 3 g network once.
U can take a look at some other codes here:
http://forum.xda-developers.com/showthread.php?p=4198158
they are from the magic forum. I never tried them out though.

Q: How to disable indicator light when charging?

upgraded to MM and wanted to find out whether there is a way to disable the indicator LED when the phone is on the charger.
There is a setting under display that allows one to disable the indicator light for notifications. That doesn't affect the charging behavior though and the light is still red/orange when charging and green when charged. Pretty annoying at night.
is there an app or hack for this?
thanks
Maybe GravityBox (Xposed needed)
GravityBox is made for stock Android and may not work on themed or skinned ROMs such as Honor's EMUI. Check or ask the developer first.
thanks folks. I asked the dev and have not heard back yet.
derausgewanderte said:
upgraded to MM and wanted to find out whether there is a way to disable the indicator LED when the phone is on the charger.
There is a setting under display that allows one to disable the indicator light for notifications. That doesn't affect the charging behavior though and the light is still red/orange when charging and green when charged. Pretty annoying at night.
is there an app or hack for this?
thanks
Click to expand...
Click to collapse
Light flow is an app for led and notification maybe see if it will work for you.

is there a possibility to monitor the battery level of BT Headsets on Android 5.x?

Android 5.x on Honor 7:
I have recognized that on my device there is a small battery level Icon near by the BT Icon (right from it) to show how full the battery of the connected headset is.
my question is:
Is there any other possibility to monitor this battery level using a special app?
this app - > https://play.google.com/store/apps/details?id=de.battery.widget&hl=de dosnt’t fit because it is not a real monitor just only a calculating.
this app - > https://play.google.com/store/apps/details?id=com.kit.chisw.headsetbattery&hl=de doesn’t work too.
same here -> https://play.google.com/store/apps/details?id=com.kmate.batterypro&hl=de !
so if somebody have a suggestion, please answer! :fingers-crossed:
BTW: i have searched for this information with google but didn’t find.
the question is: is there a way to read a value for battery level under BT 4.x on Android 5.1 or not?

Question Battery Charge Limit - where is CTRL file?

I am unable to get the Battery Charge Limit app to work on the TMOBILE variant of this device. The app allows you to set start/stop charging %, which helps prolong battery state.
Does anyone know where the control file is located? I tried searching in /sys/class/* but couldn't find anything like chg_enabled or something similiar.
For OP9Pro, the file is located here: /sys/class/oplus_chg/usb/chg_enable
For OPN200, I don't know
Doing a
find . 2>/dev/null | grep charg
Click to expand...
Click to collapse
gave me
/sys/devices/virtual/oplus_chg/battery/mmi_charging_enable
Click to expand...
Click to collapse
Writing 0 to this file disables charging and writing 1 enables charging. Note that the charging icon shows that the battery is charging if the device is plugged in even if the file has a 0, but checking with a battery app will show that charging is disabled.
I also noticed that the battery charge limit app doesn't work if you start the app when the battery is already above the maximum limit, it only works if you start the app with the battery at or above the limit you set in the app.
Also I didn't realize this but you can also use ACC and run
acc -p
Click to expand...
Click to collapse
to find likely control files. useful to know for switching to a new device and trying to find a control file.
aznxwill said:
I am unable to get the Battery Charge Limit app to work on the TMOBILE variant of this device. The app allows you to set start/stop charging %, which helps prolong battery state.
Does anyone know where the control file is located? I tried searching in /sys/class/* but couldn't find anything like chg_enabled or something similiar.
For OP9Pro, the file is located here: /sys/class/oplus_chg/usb/chg_enable
For OPN200, I don't know
Click to expand...
Click to collapse
any luck with this? been unable to get it working on mine as well
l0csta said:
any luck with this? been unable to get it working on mine as well
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Click to collapse
It seems @towardsdawn is spot on.
I configured Battery Charge Limit (you can find in Playstore) to use the charge control file located here:
Code:
/sys/class/oplus_chg/battery/mmi_charging_enable
And it seems to work. If the current battery % is HIGHER than the STOP CHARGE %, then the Battery Charge Limit application will say DISCHARGING but battery icons from homescreen and lockscreen will indicate it's charging. Even though battery icon from homescreen and lockscreen says it's charging, I did not see battery % increase.
If you charge the phone when it's BELOW the STOP CHARGE %, then the Battery Charge Limit application will say it's charging and the battery % will increase after some time until it reaches STOP CHARGE %.
Overall, it seems to work, it's just the battery charging status from Battery Charge Limit app and phone icons are not aligned. One thing I do notice is if current % is ABOVE the STOP CHARGE %, then it will stay at that % while plugged in.
just a heads up, make sure to disable battery saver as well as advanced battery optimizations when charging, these modes will kill the Battery Charge Limit app even if you have it set to "Don't optimize". had some issues getting it to work overnight and doing this worked for me.
a little ironic isn't it
looks like I spoke too soon, I fiddled around with the settings and still can't get it to work consistently. sometimes it works, sometimes it doesn't. I switched to ACCA and that works much better.
aznxwill said:
It seems @towardsdawn is spot on.
I configured Battery Charge Limit (you can find in Playstore) to use the charge control file located here:
Code:
/sys/class/oplus_chg/battery/mmi_charging_enable
And it seems to work. If the current battery % is HIGHER than the STOP CHARGE %, then the Battery Charge Limit application will say DISCHARGING but battery icons from homescreen and lockscreen will indicate it's charging. Even though battery icon from homescreen and lockscreen says it's charging, I did not see battery % increase.
If you charge the phone when it's BELOW the STOP CHARGE %, then the Battery Charge Limit application will say it's charging and the battery % will increase after some time until it reaches STOP CHARGE %.
Overall, it seems to work, it's just the battery charging status from Battery Charge Limit app and phone icons are not aligned. One thing I do notice is if current % is ABOVE the STOP CHARGE %, then it will stay at that % while plugged in.
Click to expand...
Click to collapse
Battery Charge Limit is one of my fav apps.
I thought that you have to have root to use this app, no?
Could you provide a beginner's guide on your method? Noobs need it!
clu1688 said:
Battery Charge Limit is one of my fav apps.
I thought that you have to have root to use this app, no?
Could you provide a beginner's guide on your method? Noobs need it!
Click to expand...
Click to collapse
Here is a quick guide to using ACCA which I find to work much more consistently on the Nord N200 than Battery Charge Limit:
Unlock bootloader (see this thread, I used the debloat script. make sure to remove the line that gets rid of Gboard)
Root your phone with Magisk (see this thread)
Visit this website to download F-droid, then in the F-droid client download ACCA. ACCA will say installation failed for some reason, but it still works
Edit the default profile under the Profiles tab.
Under Capacity Control edit Charging switch.
Click Add Charging Switch.
Type in
Code:
/sys/class/oplus_chg/battery/mmi_charging_enable
for charging switch
Type in 1 for On value and 0 for Off value. Click ok.
Tap on the new charging switch. Click Test charging switch with the charger plugged in. It should popup saying the switch works, if it doesn't then you'll have to troubleshoot that.
Click Save.
Edit the other settings to what you want, then click the save icon in the top right.
Tap on the default profile to switch to it.
You may or may not need to do this, but under android battery settings I disabled battery optimization for ACCA and I also turned off all of the advanced optimization settings.
towardsdawn said:
just a heads up, make sure to disable battery saver as well as advanced battery optimizations when charging, these modes will kill the Battery Charge Limit app even if you have it set to "Don't optimize". had some issues getting it to work overnight and doing this worked for me.
a little ironic isn't it
looks like I spoke too soon, I fiddled around with the settings and still can't get it to work consistently. sometimes it works, sometimes it doesn't. I switched to ACCA and that works much better.
Click to expand...
Click to collapse
Seems I am running into same issue - sometimes it works and sometimes it doesn't with Battery Charge Limit. I'll check out ACCA.
@clu1688 - you should check out the post above mine with ACCA. It seems Battery Charge Limit app doesn't work consistently.

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