Jay64
100 kW
A while back I went to buy a hydroplane boat and while picking it up, I made a score of a deal on a Phat bicycle chopper. It has been sitting in my shop for a couple of months now. I bought the 9c front hub motor from Ambroseliao with 36v22a controller. I just got it in the mail and today I had the day off. So I set about installing it in the chopper and wiring in some batts. The rake and trail of the chopper frame (not to mention the ridiculously awesome ape hangers 8) :lol: ) makes it a slightly difficult to ride. So I was figuring that I didn't want too go to fast on this bike. Also, there are no hand brakes, just push back on the pedal to stop. So that adds some sketchiness to the whole build. With that in mind I figured a nice 24v setup would be real easy. And since I had just built a bunch of a123 12v sub packs, I was ready to go. I had some leftover plexiglass, so I cut a piece and heated it up to bend it to the curve of the bike rail. I zip tied the a123 packs in place, mounted the controller and plugged everything in.
Nothing. I called e-bikekit.com to see what was the lvc on their stock controller. Turns out it was 31v. My 27v pack wasn't even getting the thing started.
I just had an issue with the Raleigh bike the other day, killed my controller. So it was just sitting there with a 48v lifePo4 pack on it. I grabbed that pack and swapped it with the a123s. Plugged everything in and presto, got myself another ebike.
I just wanted to make sure that the motor and controller worked, and to take it for a quick ride. I will end up doing a different mount for the 123s and go with a 36v of that. Over all it was cool. At partial throttle, it seemed a little crazy as far as stability and control. But it was definately cool. Rode it up to the Lowe's a few blocks away to show it off. Got bunch of people came over to check it out. A couple of little kids were checking it out and asking their dad what it was. So I started talking to them and explaining the build. Turns out they got a couple of electric pocketbikes that they got dirt cheap and replaced the batteries on. So they are already little EVers.
Unfortunately, I still hadn't charged the batt from my last couple of rides, so it was already pretty low. And there was a fair bit of swelling in the pack before I took it off the other bike.
So I just took it easy on the ride, and didn't push the throttle too hard. I got the pack charging now and will do a harder test later.
Nothing. I called e-bikekit.com to see what was the lvc on their stock controller. Turns out it was 31v. My 27v pack wasn't even getting the thing started.
I just had an issue with the Raleigh bike the other day, killed my controller. So it was just sitting there with a 48v lifePo4 pack on it. I grabbed that pack and swapped it with the a123s. Plugged everything in and presto, got myself another ebike.
I just wanted to make sure that the motor and controller worked, and to take it for a quick ride. I will end up doing a different mount for the 123s and go with a 36v of that. Over all it was cool. At partial throttle, it seemed a little crazy as far as stability and control. But it was definately cool. Rode it up to the Lowe's a few blocks away to show it off. Got bunch of people came over to check it out. A couple of little kids were checking it out and asking their dad what it was. So I started talking to them and explaining the build. Turns out they got a couple of electric pocketbikes that they got dirt cheap and replaced the batteries on. So they are already little EVers.
Unfortunately, I still hadn't charged the batt from my last couple of rides, so it was already pretty low. And there was a fair bit of swelling in the pack before I took it off the other bike.
So I just took it easy on the ride, and didn't push the throttle too hard. I got the pack charging now and will do a harder test later.
you are gonna have a hard time keeping up I think 
