It lets you know how much power is on the battery and stops charging when battery is full

This is an excellent charger way better than i expected the best battery charger ive ever had by far thank you guys over at eastshine the shipping also was very very fast

I like that it can accept so many sizes of batteries and it automatically senses what battery it is and applies the proper charging voltage simply the best charger in the market very good charger i have burned through two other battery chargers trying to save money

Ive also been using it for some of the aa batteries we have to use in cordless mice around the office that stopped accepting a charge from the duracell charger we have and it brought them back to life yes yes yes a must have if you are a nitecore fan like me i will not put anything in my nitecore devices other than these batteries works perfect for 18650 great charger