Type-C 5V 1A Lithium Battery Charger Module with Protection
Type-C 5V 1A Lithium Battery Charger Module with Protection
Type-C 5V 1A Lithium Battery Charger Module with Overcharge Protection
Keep your lithium battery projects powered up and protected with this compact Type-C 5V 1A Lithium Battery Charger Module. Designed for makers, hobbyists, and electronics enthusiasts, this charging board delivers reliable single-cell lithium-ion and lithium-polymer battery charging via a standard USB Type-C input — all in a tiny, breadboard-friendly form factor.
How It Works
This charger module uses a constant-current / constant-voltage (CC/CV) charging algorithm to safely charge your 3.7V Li-ion or LiPo cells to 4.2V. Built-in overcharge and short-circuit protection circuitry helps guard your battery against common charging faults, making it a smart choice for DIY power banks, wearable electronics, remote sensors, and more.
- Input: USB Type-C, 5V
- Charging Current: Up to 1A (1000mA)
- Charge Termination: Automatically terminates when the current drops to ~100mA after reaching the final float voltage — no overcharging
- Auto-Restart: Charging cycle automatically restarts when battery voltage drops below 4.05V (approximately 80–90% capacity)
- Built-In Protection: Overcharge, over-discharge, and short-circuit protection
- LED Indicators: Charging and full-charge status LEDs for at-a-glance monitoring
- Compact Form Factor: Small PCB size, ideal for embedded and portable applications
- Wide Compatibility: Works with single-cell 3.7V Li-ion and LiPo batteries
Ideal Applications
This charging board is perfect for a wide range of DIY and prototyping projects:
- DIY power banks and portable chargers
- Wearable electronics and smart accessories
- Arduino, ESP32, and Raspberry Pi battery-powered builds
- Remote sensors and IoT devices
- Rechargeable LED lighting projects
What's in the Box
- 1 × Type-C 5V 1A Lithium Battery Charger Module with Protection Board
For general guidance on safe handling of lithium batteries in electronics projects, refer to the U.S. Consumer Product Safety Commission (CPSC) Lithium Battery Safety resources.
Frequently Asked Questions
Q: What type of batteries is this Type-C lithium battery charger module compatible with?
A: This charger module is designed for single-cell 3.7V lithium-ion (Li-ion) and lithium-polymer (LiPo) batteries. It charges them up to a safe 4.2V final voltage using a constant-current / constant-voltage (CC/CV) algorithm. It is not suitable for multi-cell battery packs or non-lithium chemistries.
Q: How does the automatic charge termination work on this board?
A: The module automatically terminates the charging cycle when the current drops to approximately 100mA after the battery reaches the final float voltage of 4.2V. This prevents overcharging and helps extend the long-term life of your lithium battery. If the battery voltage later drops below 4.05V, the charging cycle will automatically restart.
Q: Can I use this charger module in a DIY power bank or Arduino project?
A: Absolutely. The compact PCB size and standard USB Type-C input make this module an excellent choice for embedded DIY projects including power banks, Arduino or ESP32 builds, IoT sensors, and wearable electronics. Simply connect your 3.7V Li-ion or LiPo cell to the B+ and B− pads and power the module via any 5V USB Type-C source.
Q: What does the built-in protection circuit cover?
A: The integrated protection circuitry helps guard against overcharge, over-discharge, and short-circuit conditions, providing an added layer of safety for your battery and connected electronics in everyday use and prototyping scenarios.