Zebra BTRY-MPP-34MA1-01 3250mAh printer battery for ZQ610/ZQ620, QLn220/QLn320, ZQ500 Series - Peak Technologies
Amazon.com: Artisan Power Replacement Battery for Zebra Printer Models QLn320 QLn220 (HC), ZQ500, ZQ510, ZQ520, ZQ610, and ZQ620 Mobile Printers - Rechargeable Lithium Ion Battery 3180 mAh for Max Life : Office Products