As previous models, L2 is compatible with 3.6V/3.7V Li-ion batteries and 1.2V Ni-cd / Ni-mh batteries. Batteries size: 32-70 mm in length, 32 mm in diameter
The biggest improvement on L2 is that L2 allows users to choose charging current manually among 0.5A , 1.0A and 2.0A for Li-ion batteries.