Chosen Solution

After fully charging, the battery become out of power when using the phone for a while. Restart the phone and the battery become fully charge again! What’t the problem? And how can I deal with it? Thank you in advance!

Hi Jessie , Check whether battery is swollen - You have to buy a new battery Clean the battery terminals and check whether same fault you getting, if it is just try with new battery

I also have the same experience. Try to replace the battery.