COMPATIBILITY: Replacement battery for Lenovo ThinkPad L410 / L412 / L420 / L421 / L430 / L510 / L512 / L520 / L530 / T410 / T410I / T420 / T420I / T430 / T430I / T510 / T510I / T520 / T520I / T530 / T530I / W510 / W520 / W530 / W530I / SL410 / SL410k / SL510 / SL510K / SL530 / Edge 14" / Edge 15" / E40 / E50 / E420 / E425 / E520 / E525 / Edge 0578-47B Series laptop. SPECIFICATION: Battery Type: Li-ion; Voltage: 11.1V; Capacity:8.4Ah 94Wh/8468mAh; Cells: 9 cells; Weight: About 18OZ / 1.13lb; Condition: New. SECURITY: ECHEER 70++ 9-cell batteries have passed strict intelligent detection, such as short circuit protection, over voltage protection, discharge protection, over current protection, which is very important for batterys use cycle and safety. All batteries are equiped with high quality material to ensure good performance. CE, FCC, RoHS certificated. FACTORY DIRECT SALE: ECHEER has its own factory so we can control strictly on the production. Therere professi