Attention: For the new battery, we suggest all of our customers fully charge it by AC power adapter. Maybe it take a long period, the capacity was strain out by inner PCB circuit. In order to protect your battery life, you can fully charge it to 100% and drain to 3% ,it's a cycle and the capacity will recover. it's better to make normal use after 2 cycles and charge the battery regularly at least once a month;King EBOYEE has registered a U.S. Trademark and the serial number is 88163372 .

Battery Type: Li-ion Voltage: 10.8V Capacity: 41.5WH Cells: 3 cell Color: Black; Works compatible with HP Envy M7-U Series, Envy M7-U009DX Series, Envy 17-U011NR Notebook Series, Envy 17t-U000 Notebook Series. SG03XL 849048-421 849049-421 849314-850 849315-850 HSTNN-LB7E HSTNN-LB7F SG03041XL SG03061XL SGO3XL TPN-I126; Envy m7 M7-U000 17-U000 17t-U000 m7-u009dx m7-u109dx m7-u010dx m7-u011dx m7-u105dx 17t-u000 17-u011nr 17-u110nr 17-u163cl 17-u177cl 17-u175nr 17-u108ca 17-u153nr Ultrabook .

The battery compatible with P/N.: Replacement for HP SG03XL 849048-421 849049-421 849314-850 849315-850 849314-856 HSTNN-LB7E HSTNN-LB7F SG03041XL SG03061XL SG03XL SGO3XL W2K88UA TPN-I126 Series .

Safety: Original replacement for HP Laptop Battery Replacement by King EBOYEE, Built-in over-voltage,over-circuit, over-charge,over-discharge and short circuit protection; Automatic power cut off at high electric current, voltage or temperature ensures safety; High energy efficiency and extended battery life .

Warranty: free exchange in 12 months, 30 days money back guarantee, 24 x 7 Email Support. Your good shopping experience is important for us. Any question, please feel free to contact us. we promise that we are willing to offer the great service .