The 18650 Battery Holder (2 Cell with Wire) is designed for securely holding two 18650 lithium-ion batteries in series or parallel, depending on your wiring needs. Built with durable plastic casing and pre-attached wire leads, it makes battery integration simple and reliable for DIY projects, robotics, Arduino setups, and portable electronic devices. Commonly used in power banks, LED projects, small machines, and student electronics projects in Bangladesh, this holder ensures a stable connection and easy battery replacement. A must-have accessory for anyone working with rechargeable 18650 batteries.