IBM THINKPAD R40E SERIES Battery, Lithium-ion Replacement Battery for THINKPAD R40E SERIES IBM R40E battery, 92P0989, 08K8218 Li-Ion Laptop Battery for IBM ThinkPad R40e. Replaces IBM Battery P/N 92P0989, 92P0990, 08K8218, FX00364. http://www.laptop-battery-pack.co.uk/ibm-thinkpad-r40e-series.htm http://www.usa-batteries.com/laptop/ibm-thinkpad-r40e-series-battery.htm Volt: 10.8V Capacity: 4400mAh Size: 152.90x83.20x21.60mm Net Weight: 328.00(g) Color: Black Battery Type: Li-ion IBM THINKPAD R40E SERIES Battery Compatible Battery Part No. IBM 08K8218, IBM 92P0987, IBM 92P0988, IBM 92P0989, IBM 92P0990, IBM FX00364, http://66.116.138.118/images/mid/ELIB043KO1.JPG $67