Question My Mi band 4 drain battery 20% per hour, software problem or battery problem?

[pureexe]

I just got mi band 4 2 day ago.

first day 100% battery. I go sleep for 6 hour and battery is reduce 63% (heart rate every 10 min)
so next night, i disabled heart rate and go sleep with 100% battery.

after i awake. battery already runing out...

and now after 100% battery charge, it discharge around 20% per hour.

What happend? anyway to fix this?

already try reboot / factory reset / disable incoming call, app alert, heart rate, lift band still can't prevent it from battery drain

 

[MagicalUnicorn]

I just got mi band 4 2 day ago.

first day 100% battery. I go sleep for 6 hour and battery is reduce 63% (heart rate every 10 min)
so next night, i disabled heart rate and go sleep with 100% battery.

after i awake. battery already runing out...

and now after 100% battery charge, it discharge around 20% per hour.

What happend? anyway to fix this?

already try reboot / factory reset / disable incoming call, app alert, heart rate, lift band still can't prevent it from battery drain

What applications you use ? Only Mi Fit ?

 

[pureexe]

What applications you use ? Only Mi Fit ?

Yes, Only Mi Fit

 

[Irfan902]

Yes, Only Mi Fit

Seems like your battery is defective. You might want to contact the seller for a replacement

 

[tomini]

I just got mi band 4 2 day ago.

first day 100% battery. I go sleep for 6 hour and battery is reduce 63% (heart rate every 10 min)
so next night, i disabled heart rate and go sleep with 100% battery.

after i awake. battery already runing out...

and now after 100% battery charge, it discharge around 20% per hour.

What happend? anyway to fix this?

already try reboot / factory reset / disable incoming call, app alert, heart rate, lift band still can't prevent it from battery drain

If you use modded MiFit (try this even if you have official MiFit), try Factory Reset the Mi Band 4 (in settings on Mi Band 4 display), disconnect band in MiFit after that and then connect again to MiFit and let it update.
It helped me. I had same problem, totally same...it just needed to reinstall FW etc...now I have like 2/3% per day.
If you use Tools & Mi Band app, then you need to copy Bluetooth address from MiFit, it's in the Mi Band 4 settings down above DISCONNECT button and copy it to the Tools & Mi Band app in settings.