>4400mAh Laptop Battery Pack for IBM X40(E) >Works with IBM THINKPAD X40,Thinkpad X41 Series > ... 383.5g Replacement notebook battery,laptop battery for IBM X40(E) (8 cells) Capacity: 4400mAh Voltage: 14.8V Weight: ... 383.5g Color: Blackwww dbkbattery com hk1)Product Certifications: ISO9001:2000 systerm, CE, UL, RoHS2 ... Battery Notebook PC Computer Battery for IBM X40(E) (8 cells)