So my 48v 15amp controller is in a little bag behind the saddle. I have already drilled some holes in the bag for ventilation purposes because I guessed it might get very hot.
Anyway, today in my jaunts round the tiny back roads in the North York Moors, after lots of 10% , 15%, 20% and even 25% inclines, I was cycling up a steep long hill and lost power just before the crest. I touched the controller and it was extremely hot, like it had come out of a very hot oven (I also touched the hub, which was luke warm). I moved it out of the bag and took some photos of the lovely views and it cooled down and I put it back in the bag and all worked fine for the rest of the ride. This was lots of riding at full power up long steep hills at relatively slow speeds. Should I attempt to keep the controller cooler somehow or just stop, admire the view and carry on after a few minutes ?
Anyway, today in my jaunts round the tiny back roads in the North York Moors, after lots of 10% , 15%, 20% and even 25% inclines, I was cycling up a steep long hill and lost power just before the crest. I touched the controller and it was extremely hot, like it had come out of a very hot oven (I also touched the hub, which was luke warm). I moved it out of the bag and took some photos of the lovely views and it cooled down and I put it back in the bag and all worked fine for the rest of the ride. This was lots of riding at full power up long steep hills at relatively slow speeds. Should I attempt to keep the controller cooler somehow or just stop, admire the view and carry on after a few minutes ?