This battery holder is designed to hold three AAA batteries in series, providing a compact power source suitable for various electronic projects. Its slim design includes an on-off switch, making it easy to control power. The holder features a sturdy construction with a snap-out coin holder and a flat plastic back, which can be glued for added stability. Compatible with standard AAA batteries, it supports both alkaline and rechargeable NiMH types, with voltage ranges depending on the battery condition. The included 6-inch cable terminates with a genuine JST-PH 2-pin connector, ensuring reliable connection without tears. This part is ideal for 3.3V to 4.5V projects that use a JST connector, but it is not recharge-compatible like Li-Ion batteries.