For above average power and longer battery life, the ADX20L-BS is the perfect choice. This AGM (Absorbed Glass Mat) battery is maintenance free, sealed and non spillable. It never needs refilling and meets, or exceeds, the power demands of your ride. The spill proof heat selaed cover means no leaks and the sulfation resistant plates provide longer battery life. Because the ADX20L-BS is a premium sealed battery it holds voltage longer which means this battery is ready when you are. The ADX20L-BS meets, or exceeds, the specifications of your rides original battery. Using the highest quality materials and workmanship available allow the ADX20L-BS to enjoy an extended life and extremely low discharge rate. It is shipped fully charged and ready to install out of the box. With ThrottleX just buy and ride. With Confidence!