Using this charger is easy. First, connect the charger to a power source via the USB Type-C cable. Then, insert the 18650, 21700, or 26650 Li-ion battery into the charger. The LED indicator will show you the charging status. You can also use it as a power bank to charge your other devices like phones or tablets. Just connect your device to the charger. When it comes to safety, the built-in protection circuits ensure that your battery and charger are safe from short circuits, overcurrent, overvoltage, and reverse polarity. For maintenance, keep the charger clean and dry. Avoid exposing it to extreme temperatures or moisture. If you notice any damage to the charger or the cable, stop using it immediately and contact the manufacturer.
