The  NP-F970 High-Capacity Lithium-Ion Battery Pack works with the same cameras that use Sony NP-F970 series batteries. This battery pack features a capacity of 10,000mAh, 7.4V of output power, and 74.37 watt hours. It is well suited for powering L-series compatible light fixtures for extended lengths of time. Small and lightweight, lithium-ion batteries do not suffer from memory effects due to charging a partially discharged battery.