Sealey Power Tool Battery 12V 1.5Ah Lithium ion SV12 Series CP1200BPLithium ion batteries give an all round better performance than standard Ni Cd Ni MH cells. Maintains a higher energy density level (generally twice that of a Ni Cd cell) giving more battery power per gram. Has a flat discharge curve performing better for longer. No memory effect these batteries can recover from a deep discharge with no tendency to reduce overall capacity. Suitable for use with the SV12 Series. Maintains a higher energy density level