10.80V,4400mAh,Li-ion,Hi-quality Replacement Laptop Battery for LENOVO ThinkPad R400, R61, R61i, T400, T61, T61p, T61u Series, Compatible Part Numbers: 41U3198, 42T4547, 42T4652, ASM 42T5265, FRU 42T4548, FRU 42T5262, FRU 42T5264 Voltage: 10.80V ///Capacity: 4400mAh Battery Type: Li-ion///Color: Black Dimension: 224.20 x 65.00 x 20.35 mm///Weight: 481.95 g