For my scooter it is now the third battery in 10 years, what is absolutely ok. Because it can go much broken with batteries, without the manufacturer really can ensure deep discharge or frost, I always buy cheap batteries and I'm never disappointed. Not even here. The filling on the Säusepack is ok, if you know how to do it, unfortunately we can through the plastic sleeve does not recognize the level. And then you have an additional hole drilled in the pole: The battery fits all sizes, but the connections are on the scooter just from the side. Cordless Screwdrivers 15 seconds. My Recommendation.