Important Compatibility Notice: This 17.5Ah Battery is not compatible with every Bakcou Scout eBike. It is only compatible with Scouts that have the King Kong (KK) frame. It will not work with Path Finder (PF) frame Scouts. To confirm compatibility, check the connection port on your current battery: a The King Kong battery has 6 evenly spaced vertical slots arranged in two rows, with each slot directly aligned over the one below it (as shown in the picture). a The Path Finder battery also has 6 slots but they are off set by one slot. Please be sure to reference your current battery on your Scout and if your battery doesn&&';;t match this image exactly, do not purchase this battery. Still unsure? Reach out to us before ordering - we&&';;re happy to help.