Originally Posted by 2old

RFMC --- meant w/h usage would be similar for 48V & 36V; you can look for change in efficiency using ebikesca simulator. Sounds like the small hub would be perfect for you, as you say. em3ev is a well respected source of batteries, but you might look at Luna Cycle too since shipping is a consideration. I purchased a 52V, 10 ah Samsung for $280 plus $30 shipping and $35 for a charger.