SpecificationVoltage: 11.1V; Capacity: 45Wh 4050mAh 3-Cell. Battery Type: Li-ion. Condition:100% New from Manufacturer. Replace Part Number01AV445 01AV446 01AV447 01AV448 L17L3P51 L17M3P51 L17M3P52 L17C3P51 SB10K97606 SB10K97607 SB10K97608 SB10K97609 5B10W13887 5B10W13888 5B10W13889 5B10W13890. Compatible Laptop ModelsFit for Lenovo ThinkPad E480 series - Type 20KQ/20KN, ThinkPad E485 series - Type 20KU, ThinkPad E490 series - Type 20N8/20N9, ThinkPad E495 series - Type 20NE, ThinkPad E580 series - Type 20KS, ThinkPad E585 series - Type 20KV, ThinkPad E590 series - Type 20NB, ThinkPad E595 series - Type 20NF, ThinkPad E14 series - Type 20RA, ThinkPad E15 series - Type 20RD. ANTIEE PromiseEvery one of our replacement batteries has undergone rigorous testing to ensure the true charge capacity, circuit protection, stable current, low self-discharge. And our batteries are UL / CE / FCC / RoHS Certified for safety, it can provide up to 500 charging cycles over the life. AN