Replacement Battery for the following Datamax-O'Neil Printers: MicroFlash 4t/4tCR LP3 OC2 OC3 OC4 Battery fully replaces OEM battery number 550039-100, 550034-000, and 550030-000. The 2600 mAh capacity rating is 44%% higher than the OEM's 1800 mAh...