The NITECORE i4 Intelligent Battery Charger is crafted from long - lasting ABS fire - retardant material. It features metal sliders, which significantly reduce the wear and tear when you insert batteries. This charger is a powerhouse, capable of charging 4 batteries at the same time. Each of the four battery slots functions independently, monitoring and charging its own battery. A 3 - Color LED display shows the charging progress of each battery, and once the charging is complete, it automatically stops. It's a reliable and efficient solution for all your battery - charging needs.

Using the NITECORE i4 Intelligent Battery Charger is a breeze. First, make sure the charger is plugged into a power source. Then, insert your batteries gently into the slots. The metal sliders will make this process smooth and protect the charger from damage. As the batteries charge, you can easily check the progress through the 3 - Color LED display. When the charging is done, the charger will stop automatically, so you don't have to worry about over - charging. For maintenance, keep the charger in a dry and cool place. Avoid exposing it to extreme temperatures or moisture. Regularly clean the battery slots with a dry cloth to ensure good contact. If you notice any issues with the charger, stop using it immediately and contact customer support.