Use the App Victron-connect to connect this battery charger to your smartphone, tablet or computer via Bluethoot in order to perform the first configuration and see all the charge data.Power supply: 180/265 VAC 45/65 Hz 250/350VDC.6-stage charge: TEST - BULK - ABSORPTION - RECONDITION - FLOAT - STORAGE, with LED for charge level control.Microprocessor control system to adapt the charge type to the battery requirements.Protection against: short circuit, reverse polarity, overtemperature.Storage mode to automatically reduce float voltage to 13.2V to minimize gassing and corrosion of the positive plates.IP22. Suitable for any battery type, Li-ion included.