How To Know Your Phone Battery Is Bad. You dont need to be a rocket scientist to tell a faulty battery from a healthy one. As a general rule its suggested that once the overall battery health drops below 80 it should be replaced.
If the surface of the battery is not smooth which means that if it has. If your battery spins alot it means that its NO GOODJoin the Forum Community. In this type of battery issue charging your cellphone seem to be a waste of time as it doesnt increase the battery percentage.
Lithium-based batteries degrade with each discharge cycle.
Drain the battery fully. You charge it for a decent amount of time and when you try to turn it on nothing. Its normal for some phones to lose a few percentage points of battery charge right away at least according to the battery gauge but a drop of 10 or more is a sign of a problem. Answer 1 of 5.
