Easy to install: The battery is fixed by a stainless steel spring. It is very convenient to install and replace the battery, and it is not easy to damage other parts.

It can hold standard 18650 size batteries,either for alkascent or rechargable batteries, the pin design is great for easily soldering and connecting.

It is suitable for DIY and maintenance of all kinds of dc equipment, with screw hole at the bottom and wire preinstalled, it is easy to use.

Battery Type: 2 AA batteries, 2 x 3.7V AA batteries. ON/OFF switch.
PACK OF 1 (Batteries are not included)