Generic Replacement Laptop Battery HSTNN-C50C Compatible For HP Pavilion DV7 X18 Color Black 8 cells Chemistry Li-ion Voltage:14.4V Capacity:4400mAh/63Wh N.W.:425g Dimension:271.40*52.50*21.70mm Color:Black Made with grade A Li-ion cells with up to 500 life cycles; Perfect replacement for your original battery 1 year warranty