This 4-slot battery charging cradle with adapter is suitable for Zebra TC51 TC510K TC52 TC56 TC57 handheld barcode scanner mobile computers. Specifically designed for your charging convenience and strong compatibility with it. P/N: SAC-TC51-4SCHG-01. Please check the device model carefully before purchasing. This battery charging cradle is made of high-temperature flame-retardant molecular materials to ensure stable and safe charging performance. Input 110-240V, AC 50/60Hz, 0.55A. Output 12.0V/3.0A. Built-in protection circuit prevents overcurrent and overdischarge during charging. The size of the battery charging cradle is 4.92*4.13*2.56 inches, and the total length of the power cord is 42.5 inches. Equipped with 4 slots, say goodbye to a single charger and can charge four batteries at the same time, saving a lot of time and space to meet your charging needs. This battery charging cradle is equipped with clear red and green indicator lights next to each slot, allowing you to accurately identify whether the battery is fully charged. Red is charging, green is fully charged. Make it more convenient for you to use. We conduct multiple quality inspections and perfect packaging before shipment.