M2100A is a quad charger/analyzer with A/B mount. Suitable for BP, HD and FLB brick type batteries 4 extra BP-90 charge ports for other batteries. With Anton Bauer type mounting plates directly accepts and can fast charge all Frezzi BP, HD and FLB Lithium-ion brick type batteries, as well as discharge and analyze them providing all valuable information, charger also has 4 extra BP-90 charging ports to allow you to use other type batteries. M2100A offers a unique rescue mode for abused or over-discharged batteries, auto maintenance charge, 70W regulated power supply and auto AC voltage select for worldwide operation.