The VOLT is a smart USB Li-Polymer battery charger. It features power management circuitry with an MCP73832, which can charge the battery over USB connector. Using provided screw terminals (VSYS and GND) VOLT can also be used to power your target device from battery (Vbat) or USB (5V). When USB is connected battery is charging and VSYS outputs 5V. Power LED is active when either USB or battery is connected, while Charge LED lights up only when battery is charging. Additional screw terminals with STAT and SENSE lines enable battery charge monitoring.