NP-F750/F770 digital video battery packs. These are high-capacity lithium-ion (Li-ion) batteries designed for various Sony camcorders and other devices that use the NP-F battery mount, such as LED video lights.
Here is some shopping information regarding these types of batteries:
These batteries are compatible replacements for original Sony NP-F750, NP-F770, and other L-series batteries.
The specifications shown in the image are 7.4V and 4400mAh, providing long-lasting power.
They often come in multi-packs, sometimes bundled with a dual charger for convenience.
Li-ion technology means there is no memory effect, allowing charging at any time without reducing battery life.
These batteries typically feature built-in safety protections against overcharging, overheating, and short circuits.