- Notebook battery (extended)
- 1 x lithium ion 9-cell 7800 mAh
- for HP Envy 17; Pavilion dm4
Hi-Capacity batteries from Battery-Biz are the highest quality portable power products you can buy! The batteries are made using the highest quality cells available and utilize all of the proper logic boards, thermal protectors, thermistors and circuit breakers to ensure the maximum levels of battery safety, reliability and efficiency.