The VB X-Charger B6 Power is a smart balancer charger with a high performance microprocessor and specialized operating software which allows you to charge multiple types of batteries safely and swiftly. Compatible with: LiPo - 3.7v to 22.2v, LiFe - 1 to 6 Series, NiMh/NiCD - 1 to 15 cells, SLA.