Universal battery charger for rechargeable C AA AAA, NiMH NiCd Li-ion batteries, USB-C fast charging with discharge function, 4 independent slots.

4 SEPARATE CHARGING BAYS: The universal battery charger can charge 1 to 4 batteries of any size simultaneously. No more waiting for a dual slot: mix AA and AAA batteries or combine C batteries for a customized power solution.

Compatible Batteries: 26650/21700/18650/18500/18490/16340/14500 Two Charging Modes: C Battery Charger Choose fast charging (USB-C power) to restore battery power in a few hours, or choose night mode for gentle charging to maximize battery life.

Intelligent Protection: The rechargeable C battery and the charger with a built-in smart IC chip monitor voltage, temperature, and charging cycle.

The 100% automatic charging stop prevents overcharging, thus reducing energy waste and the risk of fire. LED status indicator: The real-time visual feedback of the AAA 2/3 battery charger (red = charging, green = fully charged) eliminates guesswork when your battery is ready. TRAVEL-READY DESIGN: Compact, lightweight, and USB-C compatible rechargeable battery charger – can be used with a laptop, car adapter, or portable power bank. Perfect for camping, the office, or in an emergency kit.