Multi-functional 3.7V-4.2V Smart Universal Li-ion Battery Charger for 18650 14500 16340 Flashlight Batteries

Compatibility: Designed for 3.7V-4.2V rechargeable Li-ion batteries, including popular 18650, 14500, and 16340 sizes.

Smart Charging: Features intelligent charging technology to prevent overcharging and extend battery life.

Versatile Use: Ideal for charging batteries used in flashlights, headlamps, and other portable electronic devices.

Safety Protection: Built-in safeguards against short-circuiting, over-current, and reverse polarity for secure operation.

Compact Design: Lightweight and portable, making it convenient for travel and everyday use.