For two years I have the Huawei p 10 lite and two months ago my phone fell into the water. Since then, it has been losing battery power overnight. If the phone is not plugged in overnight, it only has 7% the next morning. Do I have to change the battery? Can someone help me? Have already power-saving mode and everything.
You can't do much against mobile phone batteries.
You have one or none. If you have one and want to do something about it, throw it away.
If it should be on the battery, you can get a new NEN battery. Otherwise, maybe reset the system. May be the virus or so making trouble and pulling power