CWK High Performance Battery for Dell TYPE-PC764 for Dell Latitude D620 D630 D630C D631 Precision Workstation - Part #'s M2300 0GD775 0JD606 0JD610 0PD685 0TC030 0UG260 310-9081 312-0653 451-10298 451-10422 GD775 JD605 NT379 PC764 TC030 TG226 UD088 Laptop Notebook Computer PC [11.1V 5200mAh (4400mAh compatible) 6cells] 24 Months Warranty Condition: Brand New - Grade A cells Battery Type: Li-ion Voltage: 11.1 Volt (10.8 Volt compatible) Capacity: 5200mAh (Better than 4400mAh) 90 Day Money Back. Buy with confidence!