This is AceBeam's high-capacity 14500 Li-ion rechargeable battery with a built-in USB-C charging port. It also includes a protection circuit in the anode to help prevent short circuits, over charge/discharge and over heating. This battery can quickly be charged without the need for a separate charger. This not only save you money from purchasing a charger, but also convenience of not having to carry around another device. This will work in all of the models that utilise the standard AA battery. This battery is a great rechargeable alternative to alkaline AA battery.

Features:

• USB-C charging 3.7V 14500 Li-ion Battery, same size with AA batteries
• With built-in protected board
• Eco-friendly