Rechargeable battery holder(2 cell)

A 2-cell rechargeable battery holder is a plastic holder designed to securely hold two rechargeable batteries and provide electrical connections to a circuit. When two typical 3.7V rechargeable Li-ion cells are connected in series, the holder provides approximately 7.4V nominal voltage (about 8.4V when fully charged). It usually has positive (+) and negative (−) wires for connecting the batteries to components such as Arduino boards, motor drivers, sensors, and small robotic projects. The holder makes it easier to install, remove, and replace the batteries while keeping them properly positioned.