The USB-C 3-Speed Speed Control & Charging Module is a compact controller designed for 3.7V lithium-ion powered projects. It combines USB-C battery charging, 3-speed output control, and built-in battery protection on a single PCB, making it ideal for handheld fans, portable LED lights, and small DC motor applications.
A single push button allows you to cycle through Low, Medium, and High speed settings, while the onboard USB-C charging circuit safely charges a single-cell (3.7V) lithium battery. Integrated protection helps guard against overcharging, over-discharging, overcurrent, and short circuits for reliable operation.
Perfect for DIY electronics, repairs, and portable battery-powered products.
Features
- USB-C charging input (5V)
- 3 selectable output speeds (Low / Medium / High)
- Suitable for 3.7V Li-ion/LiPo batteries (1 cell)
- Built-in charging and battery protection
- Supports fans, LEDs and small DC motors
- Compact PCB for easy installation
- Push-button speed selection
- Charging and full-charge status LEDs
Specifications
- Input Voltage: 5V DC (USB-C)
- Charging Current: Up to 1A
- Battery Type: 1 × 3.7V Li-ion/LiPo (4.2V fully charged)
- Output Voltage: 3.0V–4.2V (battery dependent)
- Maximum Output Current: 2A
- Speed Levels: 3 (Low / Medium / High)
- Charging Indicator: Red (Charging), Blue (Fully Charged)
- Protection: Overcharge, Over-discharge, Overcurrent, Short Circuit
- Board Size: Approx. 18 × 16 mm
Applications
- Portable handheld fans
- Rechargeable LED lights
- Small DC motors
- DIY electronics projects
- Battery-powered gadgets
- Electronic repairs and upgrades
Note: Designed for a single 3.7V lithium-ion battery only. Do not short the motor output terminals (M+ and M-). Maximum recommended load current is 2A