Switched Mode Power Supply Battery Charger is protected against corrosive environments. The Charger is compact and portable type in nature. The Charger has automatic selection of float and boost mode, 100% full load burn in test and has soft start and low output ripple and noise. The Charger has LED indication for float/ boost and battery reverse polarity and has various protections such as short circuit/ over load/ over voltage/ reverse polarity. The Charger has miniature size, high efficiency, long life and good reliability. The Charger has AC input range of 230 vac 1 and frequency from 47 to 63 hz. The Charger ensures output ripple and noise of less than 1%, working temperature from -15 & deg; c to 65 & deg; c and has efficiency of better than 85%. The Switched Mode Power Supply Battery Charger is available in dimension from 200 X 150 X 100 mm to 210 X 200 X 110 mm.