Rechargeable battery holder(3 cell)

A 3-cell rechargeable battery holder is a plastic holder designed to securely hold three rechargeable batteries, commonly 3.7V Li-ion cells. When the three cells are connected in series, they provide approximately 11.1V nominal voltage and up to 12.6V when fully charged. The holder normally has positive (+) and negative (−) wires or terminals for connecting the battery pack to an electronic circuit. It is commonly used in robotics projects, motor-driver circuits, Arduino projects, and portable electronic devices.