SmartElex MCP73833 USB Li-ion-Li-Poly Battery Charger Module
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SmartElex MCP73833 USB Li-ion-Li-Poly Battery Charger Module The SmartElex MCP73833 USB Li-ion–Li-Poly Battery Charger Module is a compact and efficient USB lithium battery charger designed for safe and reliable charging of single-cell lithium-ion and lithium-polymer batteries. This USB battery charger module uses a mini-B USB interface, making it compatible with computers and USB wall adapters. It follows a proven three-stage charging process—preconditioning, constant-current fast charging, and constant-voltage trickle charging—to protect battery health and improve lifespan. The module delivers a default fast-charge current of 500mA, which can be precisely adjusted between 100mA and 1000mA by soldering a through-hole resistor, allowing users to match the charging rate to specific battery capacities. This makes it an excellent choice for embedded systems, portable electronics, and battery management applications. Features: Assembled and tested; ready for immediate usage. JST Cable Included: Provides an easy battery connection. 5V Input via Mini-B USB: Standard USB power source. Li-Ion/LiPo Compatibility: Charges a single 3.7/4.2V lithium battery. Adjustable charge current: 500mA by default, 100-1000mA via resistor. Separate Battery/Load Connectors: Allows for simultaneous charging and operation. Thermistor Support: Temperature monitoring with a 10K NTC thermistor. 0.1″ Breakouts provide easy access to battery, DC, and LED status.
- Reliable USB battery charger module based on the MCP73833 IC
- Designed for Li-ion and Li-Polymer batteries with safe 3-stage charging
- Supports USB lithium battery charger input via mini-B USB port
- Default 500mA fast charging current, adjustable from 100mA to 1000mA
- Ideal for DIY electronics, IoT devices, and portable battery-powered projects
- Model USB Li-ion–Li-Poly Charger
- Compatibility 3.7V / 4.2V Li-Ion and LiPo Batteries
- Power Input 5V DC
- Input Connector Mini-B USB