Universal Battery Charger: Power Your battery Safely & Efficiently Maximize convenience and safety with our versatile Universal Battery Charger, engineered to handle a wide array of rechargeable batteries for all your needs. Key Features & Benefits: Extensive Compatibility: Effortlessly charge Li-ion batteries including 10440, 14500, 14650, 16340 (RCR123), 16650, 18350, 18500, 18650, 26650, and standard AA/AAA Ni-MH/Ni-Cd batteries. Unsure about compatibility? Our support team is ready to assist. Comprehensive Safety Protection: Charge with absolute peace of mind. Advanced built-in safeguards automatically prevent over-charging, over-discharging, short-circuiting, reverse polarity (wrong insertion), and overheating. Your batteries and devices are protected. Charge 4 Batteries Simultaneously: Equipped with 4 independent charging slots, power up different battery types (Li-ion or AA/AAA) at the same time. Perfect for managing multiple devices. Smart Auto-Voltage Detection: The charger intelligently identifies each inserted battery and automatically selects the correct voltage (3.7V for Li-ion / 1.2V for Ni-MH/Ni-Cd), eliminating guesswork and ensuring optimal charging. Clear LCD Charge Status Indicators: Instantly monitor progress. Each slot features a bright LCD light that displays Red while charging and automatically switches to Green when the battery is fully charged and ready. Reliable Support: Have questions about the product or its use? Our dedicated customer service team is committed to providing prompt assistance. Expect a helpful response within 24 hours. Simplify Your Charging Experience: Eliminate the clutter of multiple chargers. Our all-in-one solution offers safe, efficient, and intelligent charging for virtually your entire collection of rechargeable batteries. Invest in convenience and reliability today.