Custom 10-Bay Li-Ion Single Cell Charger intended to be used for charging up to ten Lithium-Ion cells sumultaneously for operating portable equipment. Compatible witht he following batteries:P/N 22784-001 3.4V 6.0 AhP/N 22784-001 3.4V 7.5 AhP/N 4-10400-6.0 3.4V 6.0 AhP/N 4-10400-6.0 3.4V 7.5 Ah