High Capacity Battery: 600mAh 9V rechargeable li-ion batteries, please note that the full charge voltage of all 9V lithium-ion (Li-ion) batteries is 8.4 volts
This C840 9V battey charger can charge 1~2pcs 9V lithium rechargeable batteries
1200 Tech, ProCyco (Professional recycle) helps maximize its best power performance while charging.
Recommended for smoke alarms, professional audio, and multimeter.