Join Date: Apr 2008
Location: Central Alberta Canada
While the lawn tractor batteries seem like a good price, see if they are of the SLA or Sealed lead acid, because
if they are of the normal wet type cell, there would be a good chance of them leaking acid through the vents
as you go over bumps, or if you do not have them level most of the time.
The common ones I have used are the SLA types that are used in alarm systems and UPS's etc.
These types are safer to use I believe. I had 3 12volt 11 ah ones when I first started ebikeing in 2008,
then just renewed them this winter to some 14 ah ones to use on a tricycle conversion for the winter months.
I went a bit higher ah rating because of the losses you get in the cold.
I got mine from this site shipped free, http://saskbattery.com/ecommerce_010.htm
I got good range because I do pedal almost all the time, and use the assist to do just that, assist.