Universal Battery Charger for 18650mm Batteries, Power Adapter for Headlamp, Flashlight, Doorbells, and Small Fan - 2 Pack

[Automated Smart Charging] Built-in microprocessor automatically detects battery type, diagnoses current health, and applies the precise charging current. It intelligently stops power delivery the exact moment the battery reaches 100% capacity to prevent overcharging.

• [Intelligent Safety & Multi-Protection] Engineered with advanced safety protocols to protect your home and devices. Includes integrated shields against over-charging, over-discharging, short-circuits, reverse polarity, and overheating. It automatically stops charging when the batteries are fully energized.
• [Universal USB Input for On-the-Go Charging] Powered via a convenient USB input port (compatible with Type-C or Micro-USB). Easily connect it to wall adapters, power banks, laptops, or car chargers. Ideal for daily home use, travel, camping, and outdoor adventures.
• [Clear LED Indicators & Versatile Use] Equipped with intuitive LED lights for each slot to display real-time charging status (Red: Charging; Green: Fully Charged/Idle). Rapidly restores power for your high-lumen flashlights, tactical headlamps, Bluetooth speakers, wireless mice, remote controls.