POWEROWL smart charger passed US safety certification comes with chip control, when the battery is fully charged, it will automatically stop charging, and with LED indicator

Scientific and reasonable battery charging position design, high quality materials effectively protect the battery from normal charging
Charge any number of AA AAA rechargeable batteries to make your charging easier
With a USB input interface, you can use a laptop, car charger, mobile phone charger, etc. to charge the battery
AA AAA batteries charger uses trickle charge to extend battery life and charge up to 99%