Exell Wireless Mouse Battery 3.7V 2000mAh Li-Ion Fits Logitech MX1000 MX-1000, M-RAG97 Cordless Mouse Replaces 190247-1000, 190247-B000, NTA2253, L-LB2 Voltage: 3.7, Amperage: 2000mAh, Chemistry: Li-Ion Length: 2.050, Width: 1.300, Height: 0.400 Exell Battery Remote / Car Alarm / Lantern