Description
The 18650 5V 1A/2A Lithium Battery Digital Display Charging Module is an advanced power bank controller board designed to turn spare 3.7V lithium-ion 18650 cells into a fully functional, modern portable power bank. Equipped with dual USB output ports (supporting 2.1A and 1A outputs), it allows you to charge two gadgets simultaneously with stable voltage and current.
Featuring a brilliant blue LED digital display, this module provides real-time battery percentage telemetry from 0% to 100%, along with active IN and OUT status indicators. Built-in multi-layer protection circuitry safeguards against overcharging, over-discharging, and overcurrent faults, while automatic full-charge cut-off prevents damage to your connected devices. It also includes connection pads for an optional flashlight LED.
Note: Product images are for reference only; actual appearance or labeling may vary slightly based on manufacturing batches. 18650 batteries are not included.
Key Features
- Dual USB Output Ports: Features two USB output interfaces delivering 5V at 2.1A and 5V at 1.0A for charging multiple devices simultaneously.
- Micro USB Power Input: Equipped with a standard Micro USB port for convenient 5V 1A power input to recharge your battery bank cells.
- Blue LED Digital Display: Built-in intelligent screen displays real-time battery charge percentage (0-100%) alongside IN/OUT operation signals.
- Comprehensive Circuit Protection: Integrated safeguards protect against battery overcharge, deep over-discharge, and electrical overcurrent.
- Automatic Full-Charge Cut-Off: Automatically terminates charging when cells reach full capacity to protect your electronics and extend battery lifespan.
- Flashlight LED Support: Includes dedicated onboard connection pads for installing an auxiliary LED to function as a portable flashlight.
- Compact Power Bank Footprint: Measures 57 × 28 mm with a clear 27 × 17 mm display screen for seamless integration into custom enclosures.
Benefits
- Custom Power Bank Creation: Lets you repurpose spare 18650 lithium-ion cells into a practical, high-utility mobile charging source.
- Simultaneous Dual Device Charging: Power two separate gadgets at once using dedicated high-speed (2.1A) and standard (1A) USB ports.
- Precise Battery Monitoring: Digital screen eliminates guesswork by showing exact remaining battery percentage at a glance.
- Enhanced Operational Safety: Multi-layer hardware protection prevents thermal overloads, short-circuits, and cell damage during use.
- Stable Power Delivery: Regulated output voltage and current ensure safe, clean power for sensitive mobile phones and electronics.
Applications
- Custom Portable Power Banks: Build your own high-capacity mobile power banks using spare 18650 lithium-ion cells.
- Emergency Field Gear: Compact power management module for emergency backup chargers, camping gear, and travel kits.
- USB-Powered Field Electronics: Portable 5V power source for microcontrollers, Arduino projects, and handheld instruments.
- Rechargeable Utility Lights: Power source integration for portable LED work lights and custom multi-cell lighting setups.
- Maker & Prototyping Projects: Ideal control board for custom battery-powered enclosures and portable electronics.
Package Includes
- 1 x 18650 5V 1A/2A Lithium Battery Digital Display Charging Module with Dual USB Output
- 1 x Instruction Manual / Quick Guide
Specifications
| Parameter | Specification |
|---|---|
| Item Type | Power Bank Charging Module with Digital Display |
| Input Port & Rating | Micro USB Port | 5V DC, 1.0A Input |
| Output Ports & Ratings | Dual USB Interfaces | 5V 2.1A Max & 5V 1.0A |
| Battery Compatibility | 3.7V Liquid Lithium-Ion Cells (18650 Only) |
| Display Type | Intelligent Blue LED Digital Display (0-100% Status & IN/OUT Signals) |
| Safety Protections | Overcharge Protection | Over-Discharge Protection | Overcurrent Protection | Auto Cut-Off |
| Physical Dimensions (Module Size) | 57 mm × 28 mm |
| Screen Size | 27 mm × 17 mm |
| Net Weight / Shipping Weight | Standard class / 0.01 kg |
| Shipping Dimensions | 8 cm × 6 cm × 1 cm |
