"Dock and charge up to three smart batteries or PowerPrecision+ Li-Ion printer batteries at a time. The 3-slot battery charger ships with a power supply and line cord. Select the part number with the appropriate line cord for your region. NOTE: Works with both standard and extended battery packs. COMPATIBLE PRINTERS: ZQ610, ZQ620, ZQ630, ZQ610 HC, ZQ620 HC, QLn220, QLn320, QLn420, QLn220 HC, QLn320 HC, ZQ510, ZQ511 , ZQ520, ZQ521, ZQ220