Ive been thinking about this recently and haven't come to any real conclusions , so im all ears to peoples opinions here . Its got to do with small and larger motors with batteries .
my first kit is the 200w motor I now have , it came with a 36v 9ah li-ion bottle type battery . It gave me around 40kms @30kph (20mph)
I then bought a 350w elifeQ100 motor and built another bike thinking it would go faster (which it did) , though using my 36v battery it only travelled HALF of that distance . The motor , though it went faster , i was disappointed about the battery running out of steam after 10 kms . I then heard on the forum that a more powerful battery can be used to power the 200w providing the controller caps are up for the task . Pulling the controller apart I soon found out it was ,,, so i went and got the (lifepo4) 48v x 12ah battery . Now to my amazement , not only am I getting over TWICE the original distance (80kms +) ,,, but it goes almost 15kms faster (40-45kph or nearly 30mph )
So im wondering,,, why would you buy a bigger Watt motor and use a 36v battery , when a small watt motor with a bigger battery will do it better ? Im not real cluey on technical issues here , so this is what I have found in my short experience playing with motors and batteries .
This is where technical knowledge comes in handy i suppose i need ?