Universal 4-Slot Li-ion Battery Charger – Smart & Efficient Power Solution
Compact USB-powered charger for 3.7V Li-ion batteries (10400/14500/16340/16650/14650/18350/18500/18650). Features dual-current output (500mA/1A) with auto-detection for optimal charging speed. Precision-engineered circuitry ensures overcharge protection and temperature control. Durable ABS+PC shell with fire-resistant coating, built-in LED indicators for real-time status. Ideal for vape mods, flashlights, drones, and DIY electronics. Works with any 5V USB port (adapters/laptops/power banks). Batch-friendly pricing – bulk orders available for resellers & industrial users.