Application Type: The battery case can hold 3 pieces of 1.5V AA batteries, serving as a USB battery pack for LED lights
Function: AA battery holder with USB port and battery holder switch function with ON/OFF switch
Easy to install: The battery is secured in place by stainless steel springs. Installing and replacing the battery is very easy and does not easily damage other components
Material: aa battery holder with USB port is made of toughness material, high strength, good toughness, not easy to crack.
The output voltage is 4.5V, and the battery holder does not have a voltage stabilization function. The output voltage is the series voltage of three 1.5V batteries