Originally Posted by
dieth34
I like to convert my MTB in to an e-bike and have 2 Motors available, 36V 500W Motor and 48V 500W Motor, boot Bafang. Witch one should I use for the Bike and way?
Use the one for which you have a matching battery. (48V or 36V). The battery is half the parts cost of a conversion - more if you are looking for long range.
If you don't have the battery, 48V is fractionally more efficient, and typically pack more Wh in a given case size.