This multi - port desktop charger doesn't come with a power supply. But here's the great news: it includes four batteries, giving you extra power storage right out of the box.

To use this charger, first, connect your devices to the charging ports. Since it doesn't have a power supply, you'll need to use your own. Make sure the power supply you choose is compatible with the charger. When inserting the batteries, do it gently to avoid any damage. As for maintenance, keep the charger in a dry and cool place. Don't expose it to direct sunlight or moisture. If you notice any issues with charging, check the connections first. If the problem persists, it might be time to look at your power supply or contact customer support.