If your Motorola or Symbol MC55/MC65 is dying too fast, this 4400mAh replacement battery is a total game-changer! We're talking serious power here - it gives you 83% more runtime compared to the standard 2400mAh batteries and 22% more than the extended 3600mAh ones. Perfect for shift workers who need their mobile computers to last all day. It's 100% compatible with MC55, MC55a, MC5574, MC5590, MC65, MC67 models and replaces part numbers BTRY-MC55EAB02, 82-111094-01, 400384-217. The coolest feature? It's made with antimicrobial plastics that actually fight germs, viruses, and bacteria - super important in healthcare or industrial settings. It's got better dust and water resistance (IP54 rated) and handles cleaning chemicals without issues. The power cells are made in Japan and UL certified, so you know they're quality. Artisan Power (the maker) started in a garage and grew into this legit battery company that Fortune 500 companies use. If you're tired of your device dying mid-shift, this battery will keep you going strong!