Try to replace the charger, if there is no mobile phone charger, the output current is small, the safety of the battery is basically a greater probability of broken....
Bubugao tutoring machine smart s2 after no power can not charge how to do. It died at night, so I left it at home and charged it at noon?
Try to replace the charger, if there is no mobile phone charger, the output current is small, the safety of the battery is basically a greater probability of broken.
