This battery charger MCP73871T-2CCI/ML charge controller from Microchip Technology is an electronic system that manages a set of batteries by protecting the battery from harmful environmental factors, making sure it operates within its safe operating area, and monitoring its state. With an output that has a voltage of 4.2 V, this is power management at its best. Its output produces a current of 50 to 1000 mA. This product will be shipped in tape and reel packaging for quick mounting and safe delivery. This device has a minimum operating supply voltage of 4.5 V and a maximum of 6 V. This device runs on Li-Ion|Li-Pol. This battery gauge has a minimum operating temperature of -40 °C and a maximum of 85 °C.