I know that the choice of small battery chargers is very wide and most of us think that they work the same way to get the same results. False. Some are smarter at charging your batteries the correct way to optimize their charge, their performance and their life.
Adopted by the most prestigious car manufacturers and by Harley-Davidson, CTEK battery chargers use a unique charge algorithm, go through 8 steps to constantly read and communicate with your battery, charging only to its direct needs and therefore avoiding any possibility of incorrectly charging the battery. Furthermore, by ensuring the battery is conditioned as well as charged, your batteries last significantly longer.
Moreover, each CTEK Smart Battery Charger regulates mains voltage to protect any sensitive electrical equipment. In addition they are very small, idiot proof(spark-free, short-circuit-proof design incorporates a feature that prevents reverse polarity), and almost indestructible (yes, you can ride on it!). CTEK Smart Battery Chargers (V-Twin Expo booth 846)