I have a Tern 20" folding bicycle. I would like to add a low cost, low power, light weight, and short range electric motor assist for making two to four mile round trips. I pedal for exercise but need a boost up hills. About a 10mph top speed is good because the trips are short and I plan to avoid traffic using strip mall drives and sidewalks.
Insist of adding such batteries do have a look at Boomerbuggy 2 Seater scooter as it satisfies you in every aspect. It has two comfortable seats to ride with a basket at the front with best quality battery with better backup time.