LENMAR Replacement Battery for Acer Aspire 1640, 3000, 5000 Series Laptop Computers (LBARA1680L) Fits: Acer Aspire 1640, 1640Z, 1650, 3000, 5000 Series, 3000LCi, 3002LCi, 3003LCi, 3003WLCi, 3003WLMi, 3004WLMi, 5002WLMi, 5003WLMi, 5040-3810 Replaces: Acer 4UR18650F-1-QC192, 4UR18650F-2-QC140, 4UR18650F-2-QC141, 916-2990, 916-3020, 916C3020, BT.00403.004, BT.00404.004, BT.00607.001, BT.00803.017, BT.T5003.001, L18650-8APT 14.8V / 4400mAh Lithium Ion 1 Year Warranty