Dentsing SB10H45078 00NY493 Laptop Battery 11.25V 90WH 77+ for Lenovo ThinkPad P50 00NY492 SB10H45077 Model: 77+ Color:Black Voltage:11.25V Capacity:8Ah 90Wh Compatible P/N:00NY490 00NY491 00NY492 00NY493 77+ Compatible with:Lenovo Thinkpad P50 P51 P52 Series 6 Months Warranty. If you have any issue, please contact us, we will help you resolve it before you leave a negative feedback or low review.Thanks for your kind support and patience.