MIKROE-2033 Charger click Mikroe MIKROE-2033 Charger click carries an MCP73831 battery charger controller, DS2438 battery charge monitor, and a battery connector, and is designed to use a 5V power supply. The single-cell Li-ion and Li-polymer MCP73831 charge management controller features a programmable 15mA to 250mA charge current. The DS2438 smart battery monitor integrates a temperature sensor, timer, ADC to measure battery voltage / current, and a current accumulator to monitor total battery current. The DS2438 communicates through a one-wire interface to an MCU, and the battery connector is on top of the board.