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1-20PCS 3.7V 18650 Mini Li‑Ion Battery Charging Pad – Type‑C Input Keyboard Power Plate with Protection Converter for Power Bank
Upgrade your power‑bank assembly or DIY keyboard project with this compact, high‑efficiency charging pad. Designed specifically for 3.7 V 18650 lithium‑ion cells, the mini power plate delivers fast, safe charging through a universal USB‑C input, making it the perfect replacement or upgrade for portable power solutions.
Key Highlights
- Universal Type‑C Input: Supports 5 V/9 V/12 V USB‑C power sources for flexible charging options.
- Built‑in Protection Circuit: Over‑charge, over‑discharge, short‑circuit, and temperature protection keep your cells safe.
- Compact Mini Design: Thin 8 mm profile fits easily into tight spaces—ideal for keyboards, power banks, and custom enclosures.
- Scalable Quantity: Available in packs of 1 to 20 pieces, perfect for hobbyists, OEM manufacturers, and bulk buyers.
- High Conversion Efficiency: Up to 95 % efficiency reduces heat and maximizes runtime.
- Easy Solder‑On Terminals: Pre‑tinned pads simplify installation on PCBs or directly onto battery holders.
Why Choose This Charging Pad?
Whether you’re building a portable keyboard, refurbishing a power bank, or creating a custom battery pack, this charging plate offers reliable performance with minimal footprint. The integrated protection board ensures longevity for your 18650 cells, while the Type‑C interface provides fast, universal charging without the need for additional adapters.
Technical Specifications
- Battery Compatibility: 3.7 V 18650 Li‑Ion (single cell)
- Input Voltage: 5 V – 12 V via USB‑C
- Charging Current: 0.5 A – 1 A (adjustable via external resistor)
- Protection Features: Over‑charge, Over‑discharge, Over‑current, Short‑circuit, Over‑temperature
- Dimensions: 45 mm × 20 mm × 8 mm
- Operating Temperature: –20 °C to +60 °C
- Weight: 6 g per unit
Ideal Applications
- Portable power banks and external battery packs
- Compact mechanical keyboards with built‑in power supply
- DIY electronics, hobby projects, and prototype development
- Emergency backup power modules for small devices
Package Includes
1‑20 pcs of 3.7 V 18650 Mini Li‑Ion Battery Charging Pad (quantity as selected), with detailed wiring diagram and quick‑start guide.
Order Now
Boost your device’s reliability and charging speed with this premium mini charging plate. Click “Add to Cart” to secure the quantity you need and enjoy fast, safe power for all your 18650‑based projects.
Price: Original price was: $ 2.35.$ 1.15Current price is: $ 1.15.