Husky430
E*POWAH Elite
Can anyone shed any light on whether or not Shimano every made a larger capacity battery for their externally mounted batteries? Seem to remember reading about a while back, sort of the same as their 504Wh batteries but just a bit fatter from memory. Just did a search for them and came up empty handed. My battery is starting to feel it's age after 2500km so was thinking down the lines of if I was to buy a second battery the extra capacity would be a bonus.