REPLACEMENT FOR PURE CLEAN PUCRC90 - The replacement rechargeable battery is for Pure Clean PUCRC90 models robot vacuum cleaner UP TO 60 MINUTES RUN TIME - Provides you up to 60 minutes run time. Connect the unit to the wall charger adapter to charge and disconnect once charging is completed and it is ready to be used again REPLACING THE BATTERY - Before installing or removing the battery, the unit must be disconnected from the power source. Open the battery cover, insert the battery into the cabinet and close the cover making sure it clips well located in its position SPECIFICATIONS - The removable battery is a rechargeable Lithium Ion battery pack with a long lasting 2600mah capacity WORRY-FREE SHOPPING - With the Pure Clean PRTPUCRC90BATT.5 Replacement Rechargeable Battery we are confident of the quality of our product