FeaturesOptimize the operation of your TLS 2200® thermal labeling system or HandiMark® portable label maker with this spare or replacement nickel cadmium (Ni-Cd) batteryPrinter can be run while battery is chargingUse AC adapter/charger unit (not included to charge batteryEnables cordless printer operation so you can print labels where you need them, when you need themKeep a spare battery recharged and at the ready with this extra battery pack