Offgrid Dreaming, Upgrade to 190w+ It looks like it will draw about 5amps peak, so if you keep adding solder to the shunt till you get to about a 8amp peak draw with load the controller should be ok at that current just see how hot it runs.
Me to found a pair one I put a vacuum battery 36 lithium ion volt to 24 volt scooter was super fast for 2 minutes than stop I think I burn something. Than I connected 36 volt battery straight to the motor with kill switch was super fast n powerful for 12 minutes then battery die was hard to control at first cues to fast .
