Is you original battery running down? Only getting half an hour of power per charge? Then maybe it is time for you to get a new Amstron brand replacement Lenovo 40Y8315 battery. The Amstron LLE-12 is designed for use with the Lenovo 3000 C200 Series, 3000 C200 8922, 3000 N100 Series, 3000 N100 0689, 3000 N100 0768 laptop models and replaces OEM part numbers: 40Y8315, 40Y8322, ASM 42T5213, ASM 92P1185, FRU 42T5212, FRU 42T5256, FRU 92P1184, FRU 92P1186. Amstron brand batteries are manufactured with the strictest quality and safety controls and are 100% OEM compatible. • Chemistry: Li-Ion • Rating: 10.8V 4800mAh • Color: Silver • Dimensions (LxWxH): 8.12" x 1.64" x 1.08" • Warranty: 1 Year