I've gotten by BBSHD motor installed on my Framed Minnesota 2.0. But I'm having a hard time finding a battery to fit the down tube. It's a pretty small space. So far I've tried

1. A triangle battery from UPP - too big

2. I normal Shark Type 48v 15 Amp hour battery - too long

I am considering...

A. A rack mount battery

B. Attaching a battery under the downtube

Any other ideas are much appreciated.

Thanks

MNark