A new generation of Battery Care Systems has arrived. A professional switch mode charger designed to automatically maintain, optimise and prolong the life of any 12 volt battery. Suitable for all 12V battery types upto 20Ah including Gel, MF and conventional lead and refilable batteries. The Oximiser 900 can be left perminantly connected to provide long-term battery care. Sophisticated Battery management. It provides real time information about the battery condition. Heavily discharged batteries as low as 4.1V can be charged if the battery is not damaged.