THis is the ideal charger for the marine environment, Tough and compact The fully automatic M45 is perfect for charging jet skis and smaller boats. The M45 4 step 12V battery charger and maintainer has been developed to cope with tough marine environments. It’s the perfect charger and maintainer for jet skis, AGM batteries and smaller boat batteries from 1.2-120Ah, and has three selectable program modes. The M45 is IP65 classed and delivers 0.8/3.6A. Selectable charging power for smaller or larger batteries Optional cold weather/AGM mode Safe spark free operation Reverse polarity protection No harmful galvanic currents Compact tough design Fully automatic 4 step charging for maximum performance and extended life Splash proof and dust proof (IP65) Short circuit proof 5-year warranty