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SmartElex MCP73833 USB Li-ion-Li-Poly Battery Charger Module
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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.
| 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 |