Voltron
1 MW
Just a little something to check before you go tearing things apart...
I've been having a slow drop off in power for a while, that I assumed was either my pack aging out, or my motor getting demagnetized, or controller etc. This particular controller had a real pronounced step up in power at about 25 mph, that I've read was where it's switching to sensorless mode, that I was starting to miss, and the top speed had dropped from 40ish to low 30s.
So anyway, finally decided to track down where the missing jump had gone, mentally ready for a full teardown and testing. Then it suddenly occurred to me that it was slowly starting to feel like it had when the three speed switch was in the medium position, like way back when I was testing it to figure out the wire colors and never used again. I used a bent over paperclip to jumper it on high back then, and this damp winter made it corrode just enough to add resistance slowly. A quick wiggle to get to shinier metal, and immediately back to full power!
I will probably hook in a switch, as it has enough jump again to make medium power a good idea for friends test rides, but I also want to test how much an even lower resistance connection boosts things.
I've been having a slow drop off in power for a while, that I assumed was either my pack aging out, or my motor getting demagnetized, or controller etc. This particular controller had a real pronounced step up in power at about 25 mph, that I've read was where it's switching to sensorless mode, that I was starting to miss, and the top speed had dropped from 40ish to low 30s.
So anyway, finally decided to track down where the missing jump had gone, mentally ready for a full teardown and testing. Then it suddenly occurred to me that it was slowly starting to feel like it had when the three speed switch was in the medium position, like way back when I was testing it to figure out the wire colors and never used again. I used a bent over paperclip to jumper it on high back then, and this damp winter made it corrode just enough to add resistance slowly. A quick wiggle to get to shinier metal, and immediately back to full power!
I will probably hook in a switch, as it has enough jump again to make medium power a good idea for friends test rides, but I also want to test how much an even lower resistance connection boosts things.