Another thought for people finding their eZip gutless. I just went back to look at my 'other' battery pack, the one that came with the bike. It's never been as good as the second Currie pack I bought from Scootonthis. I've always said maybe it sat in a warehouse too long. I had looked inside before and not found anything noteworthy. I was considering moding the case for another purpose, so I looked again.
One of the wires to the fuse holder had an awful cold solder joint with only about 1/5 of the strands connected at all. I'm thinking it will work lots better now.