IBM 02K6601 replacement laptop battery by Amstron is made from the highest quality cells and parts. The LIB-30 is designed to meet or exceed original equipment specifications. This battery has been rigorously tested to ensure that it is 100% compatible with the IBM ThinkPad i1400 and i1500 (Model: 2621-xxx, 2651-xxx) series of notebooks. • Chemistry: Li-Ion • Rating: 10.8V 5400mAh • Dimensions: 5.5” x 3.75” x 0.75” • Notes: Rectangular battery with seven slit-type contacts on end. • Warranty: 1 Year