Ansmann Powerline 4.2 Pro Battery Charger and Tester Includes:Powerline 4 Pro 44V zinc-air button batteries: 10

44V zinc-air button batteries: 10 / 13 / 675 / 312

360 degrees rotatable

CHARGE FUNCTION: Upon insertion

Charge up to 12 AA cells

Single slot monitoring

Ansmann Powerline 4.2 Pro Battery Charger and Tester Includes:Powerline 4 Pro 44V zinc-air button batteries: 10Multifunction Charger for 1 4 AA or AAA NiMH cells. This completely programmable charger will charge, refresh and test cells individually. It provides a true digital read out of capacity of individual cells in milli amp hours so you always know how much battery life is available. Variable refresh function for optimum battery life. Also includes 1 Amp USB charger for smartphones and USB devices, Apple, Samsung, Blackberry, etc. This charger is a "must"