ZTHY High Capacity 61.6Whr SG03XL Laptop Battery Replacement for HP Envy M7-U M7-U009DX 17-U011NR 17t-U000 17-U011NR 17-U163CL 17-U177CL Series 849315-850 TPN-I126 849049-421 HSTNN-LB7F 11.55V Battery typeLi-ion. Color: Black. Voltage: 11.55V. Capacity: 5150mAh/61.6wh(Much Higher Capacity than 41.5Wh). 100% New from Manufacturer. Up to 500 recharge cycles over the life of the battery. Replace Part NumberSG03XL 849048-421 849049-421 849314-850 849315-850 HSTNN-LB7E HSTNN-LB7F SG03041XL SG03061XL SGO3XL TPN-I126 Compatible Models HP Envy M7-U Series, HP Envy M7-U009DX Series, HP Envy 17-U011NR Notebook Series, HP Envy 17t-U000 Notebook Series, HP Envy 17-U163CL 17-U177CL Series and more. SecurityAll ZTHY products are Certified by CE, FCC for safety. Strict guidelines for compatibility, and standards compliance for environment safety. ZTHY Laptop Battery Return PolicyRest assured with 30 days Refund and 12 months Replacement,also get our friendly customer service.