 Manufacturer | Oncore Power Systems, Inc |  Manufacturer Part Number | NB508 |  Manufacturer Website Address | www.oncorepower.com |  Product Name | ThinkPad T30 Series Notebook Battery |  Product Type | Rechargeable Notebook Battery |  Battery Chemistry | Lithium Ion (Li-Ion) |  Capacity | 4400 mAh |  Output Voltage | 11.1 V DC |  Dimensions | 5.51" x 3.3" x 0.83" |  Weight | 0.6 lb |  Compatibility | ThinkPad T30 Series |  Standard Warranty | 1 Year(s) |  Parts Warranty/Labor | 1 Year(s) | |