rosalieegEfficient 2/4 Slot USB-Powered Battery Charger: Universal Fast Charging Solution for 18650 Li-ion Batteries – Ideal for On-the-Go Use, Ensuring a Reliable Power Supply for Portable Devices.

•Clear Status Indicators: Each slot is equipped with an LED indicator light that provides clear visual cues about the charging status of your batteries. When a battery is fully charged, the corresponding LED turns green, giving you full control over the charging process without any guesswork.

•Flexible Design: The charger features adjustable electrodes that allow you to load different sizes of batteries with ease. It supports a wide variety of battery types, including 10440, 14500, 16340, 16650, 14650, 18350, 18500, 18650, and 26650. No matter what type of batteries you have, this charger can power them up safely and efficiently.

•Built-in Safety Mechanism: This charger is engineered with overcharge protection to prevent damage to your batteries. It automatically stops charging once the batteries reach full capacity, extending their lifespan and giving you peace of mind.

•Compact and Easy to Use: Powered by a USB port, this charger is incredibly convenient and portable. Its compact size (90 x 30 x 122 mm) makes it easy to carry in your bag or pocket, perfect for on-the-go use. Whether you're traveling, camping, or simply out and about, you can quickly charge your batteries anytime, anywhere.

•Material: Plastic

•Color: Black

•Size: 90 x 30 x 122 mm

•Input: DC 5V 1-2A

•Output: DC 4.2V 1000mA

•Compatible Batteries: 10440, 14500, 16340, 16650, 14650, 18350, 18500, 18650, 26650

•Battery Compatibility: This charger does not support AA, AAA, or 1.5V batteries. It is designed for 3.7V-4.2V rechargeable batteries.

•Measurement Tolerance: Slight errors may occur due to manual measurement.

•Usage Conditions: Avoid using the charger in outdoor or humid conditions.

•Charging Issues: If the charger is not charging, it may be due to the battery being fully charged, aging, short-circuited, reversed, loaded with a non-rechargeable battery, or having dirty electrodes.

•1 x USB 4-Slot 18650 Battery Charger