PowerSmart&reg; 10.8 V 4400 mAh 	Li-ion Battery for IBM 02K6503, 02K6507, 02K6509, 02K6516, 02K6517, 73H9952 Remarks: This battery cannot fit for all IBM ThinkPad 380 series in Type model 2635-8xx/LEU/9xx/Axx /Bxx, but fit for TYPE 2635-Dxx/Exx/Fxx only. Battery Type: Lithium-ion (Li-ion) Voltage: 10.80V (Compatible with 11.10V) Capacity: 4400mAh Color: Black Please ensure the product(s) that you are going to buy fits the brand, model, part number and dimension (mentioned above) of your device. Please ensure the product(s) that you are going to buy fits the brand, model, part number and dimension (mentioned above) of your device. If the part number of your original battery or machine model is not listed in our description, please contact us to confirm the compatibility before biding. The brand "PowerSmart" is our exclusive registered trademark, products trademarked " PowerSmart" are marketed and sold exclusively by power198.