Artisan Power Zebra/Comtec QL320 and QL220 Printer: Replacement Battery. 2900 mAh Zebra/Comtec QL320 and QL220 Replacement Battery Replaces OEM battery number AT16004-1 Lithium Ion Rechargeable Battery Pack | 7.4 Volt | 2900 mAh | Cells Made in Japan Long Lasting High Capacity: 2900 mAh capacity rating 38% higher than the OEM battery Manufactured by Artisan Power, a leader in premium quality replacement battery packs.