The Pila is an awesome charger. It will charge a AW 18650 IMR (1600mah) from 3.75v to 4.2 volts in about 50 minutes. My AW 18650 2600 mah lions take about an hour and 40 minutes. The only gripe I would have with it is 1) for anything other than a 650-670 mm battery(18650/17670/14650) you need spacers and 2) the charge indicator lights constantly flash when there isnt a battery inserted.