Every lithium-ion battery slowly loses capacity as it ages. You cannot stop that, but you can slow it down, and you can get more from each charge along the way.
Habits that protect the battery
- Keep it out of the heat: a sunny dashboard or a hot car does more harm than almost anything else
- Try not to run it down to zero on a regular basis
- Turn on your phone's optimised or adaptive charging, if it has one, so it avoids sitting at 100% all night
- Take off a thick case if the phone gets hot while charging
Quick ways to get through the day
- Lower the screen brightness or use automatic brightness
- Check which apps use the most power in your battery settings
- Turn on low power mode when you know it will be a long day
How to tell it is time for a new battery
On iPhone, look at the maximum capacity in Settings, under Battery. Many Android phones show similar information, though the location varies by brand. Whatever the number says, watch for the practical signs: the phone shuts down with charge remaining, the percentage jumps around, or it no longer lasts the day.
If the back of the phone is bulging, stop charging it and bring it to us. A battery replacement usually costs far less than a new phone.
