Amazon.com: Synergy Digital Mobile Printer Battery, Works with Zebra RW420 EQ Mobile Printer, (Li-ion, 7.4V, 4200mAh) Ultra High Capacity, Compatible with Zebra AK17463-005, CT17102-2 Battery : Electronics
Replacement Battery for RW420 L405 RW420 EQ AK17463-005 CT17102-2 : Health & Household - Amazon.com
Zebra RW 420 Direct Thermal Printer (R4D-0U0A010N-00) WITHOUT Battery Pack 807027543332 | eBay
ZEBRA RW420 Series Standard Capacity Battery | Barcode Scanners, Wireless & Mobile Computers | Breckline Technologies