Synergy Digital Mobile Printer Battery, Works with Dymo LabelManager 420P Mobile Printer, (Li-ion, 7.4, 1600mAh) Ultra High Capacity, Compatible with 3M PL-200-BAT Battery - Walmart.com
DYMO Lithium Ion (Li-Ion) Battery for select LabelManager and Rhino Label Makers | 360D, 420P, 4200, and 5200 | Dymo CA