Lithium battery is used up, how can I charge it

- Sep 04, 2019-

Lithium battery is used up, and it can't be charged. You should first check if the charger is broken, or the battery switch is broken. Generally, the battery is used up. It is impossible to charge the battery. If it is not the charger. The problem, it may be that the battery is really not working. I hope to be new.