products;Li-ion battery model NO : R40 battery Spec : OEM Model Number: Laptop Battery for R40 Model:R40Compatible P/N:FRU, 02K6928,FRU 02K7053,ASM 02K7057,02K7052,02K7053, 02K7054,02K7055,02K7056,02K7058,02K7059,02K7060,02K7061Replacement Models:Thinkpad R40/R41 Series TYPE:Li-ionVoltage (v):10.8Capacity (mAh):4400CELLS:6 rechargeable laptop battery R40 for IBM