Sealife 18650 Li-Ion Battery Charger

The SL9825 SeaLife 18650 Li-ion Battery Charger is a compact USB-powered charger designed for 18650 Li-ion batteries. It works with any 5V USB wall adapter and can fully charge a battery in about three hours. The charger features automatic 1A current selection with built-in safety protections including reverse polarity and short-circuit prevention, along with a 0V activation function to revive over-discharged batteries. Lightweight and travel-friendly, it measures 3.62 × 1.06 × 1.02 inches and weighs only 0.09 lbs. The package includes a USB cable, storage pouch, and user manual, while the battery is not included.