Warranty 1 Year Voltage 10.8V Battery Type External Cells 6 Cell Cell Type Li-ion 18650 cell Battery Capacity 4000mAh Watt-Hour 44Wh Compatible with Aspire 4745G, Aspire 4820GT, 4820T ,4820TG ,5820T ,5820TG,7745 Series, 5820T ,5820TG Series,AS4820T ,AS4820TG ,AS5820T, AS5820TG Series,4820T ,4820TG,Aspire 3820 ?Aspire 3820T ?Aspire 3820T-3051 ?Aspire 3820T-334G32n ?Aspire 3820T-334G50n ?Aspire 3820T-5246 ?Aspire 3820T-5851 ?Aspire 3820T-N52B ?Aspire 3820TG ?Aspire 3820TG-332G50na ?Aspire 3820TG-334G32Mn ?Aspire 3820TG-334G50n ?Aspire 3820TG-352G50n ?Aspire 3820TG-352G50nc(silver) ?Aspire 3820TG-372G50nss01 ?Aspire 3820TG-382G50nss04 ?Aspire 3820TG-432G50n ?Aspire 3820TG-432G50nd(silver) ?Aspire 3820TG-434G64n ?Aspire 3820TG-482G64nss05 ?Aspire 3820TG-5452G50nsse ?Aspire 3820TG-5462G64nss03 ?Aspire 3820TG-7360? Aspire 3820TZ?Aspire AS3820T-374G32nks ?Aspire AS3820T-374G50nks ?Aspire AS3820T-6480 ?Aspire AS3820TG-374G32n ?Aspire AS3820TG-374G32nks ?Aspire AS3820TG-374G50nks ?Aspire AS3820TG-382G50nss ?Aspire AS3820TG-482G64nss ?Aspire AS3820TG-484G50nks ?Aspire AS3820TG-5462G64nss ?Aspire AS3820TG-5464G75nks ?Aspire AS3820TZ-P613G32nks