The battery is equipped with a very convenient charging system that uses the built-in USB-C port. The LED STINGRAY VIDEO MARK II set comes with two rechargeable 21700 Li-ion batteries and a USB-C cable, which can be used to charge the batteries from any power source (charger, power bank, laptop, computer, or a car USB charger).

The batteries can also be charged with chargers dedicated to standard 21700 Li-Ion batteries.

Additionally, there is a built-in bi-colour LED in the positive pole of these batteries. It informs the user about the current charging status (red indicates the charging process / blue means that the battery is fully charged). Due to the lack of memory effect, the batteries can be recharged at any time without negatively affecting their capacity and battery life.