Replaces OEM # 00NY492, 00NY493, 01AV477, 01AV495, 01AV496, 4X50K14091, 5B10W13951, 5B10W13952, 77+, L17L6P51, L17M6P51, SB10H45077, SB10H45078, SB10K97634, SB10T83195 Fits: LENOVO THINKPAD P50, P51, P52, P50 20EN, P50 20EQ, P51 20HH, P51 20HJ, P51 20MM, P51 20MN, P52 20M9, P52 20MA Specs: 11.25V, 90WHR, 8000MAH, 6 CELL Brand New GreenTech replacement battery - 6 Month Replacement Warranty Each product has undergone rigorous testing to ensure the correct voltage, circuit protection, stable current, low self-discharge and CE / FCC / RoHS Certified for safety