Battery for Lenovo B40 B40-30 B40-45 B40-70 B50 B50-30 B50-30 Touch B50-45 Compatible with the following devices B40, B40-30, B40-45, B40-70, B50, B50-30, B50-30 Touch, B50-45, B50-70, Eraser B40, Eraser B40-30, Eraser B40-45, Eraser B40-70, Eraser B50, Eraser B50-30, Eraser B50-30 Touch, Eraser B50-45, Eraser B50-70, Eraser M4400, Eraser M4400A, Eraser M4450, Eraser M4450A, Eraser N40, Eraser N40-30, Eraser N40-45, Eraser N40-70, Eraser N50, Eraser N50-30, Eraser N50-45, Eraser N50-70, IdeaPad B40, IdeaPad B40-30, IdeaPad B40-45, IdeaPad B40-70, IdeaPad B50, IdeaPad B50-30, IdeaPad B50-30 Touch, IdeaPad B50-45, IdeaPad B50-70, IdeaPad M4400, IdeaPad M4400A, IdeaPad M4450, IdeaPad M4450A, IdeaPad N40, IdeaPad N40-30, IdeaPad N40-45, IdeaPad N40-70, IdeaPad N50, IdeaPad N50-30, IdeaPad N50-45, IdeaPad N50-70, IdeaPad V4400, IdeaPad V4400A, M4400, M4400A, M4450, M4450A, N40, N40-30, N40-45, N40-70, N50, N50-30, N50-45, N50-70, V4400, V4400A Compatible with Battery Part Numbers 45N1183, 45N1184, 45N1185, ASM 45N1182, FRU 45N1183, L12L4E55, L12S4E55, L13L4A01, L13M4A01, L13S4A01