14.8V 4S (18650) Battery Holder

• A 4S battery holder is a device designed to hold and connect four individual lithium-ion in a series configuration. The "4S" designation indicates that the holder is intended for creating a power supply by connecting four cells in series, resulting in a higher voltage output. Each cell typically has a nominal voltage of 3.7 volts, so when you connect four of them in series, the total voltage output is around 14.8 volts (3.7 volts multiplied by 4). 4S battery holders are commonly used in applications that require this specific voltage output, radio-controlled vehicles, remote-controlled aircraft, and various electronic devices that need a higher voltage power source.