Well it is relatively easy to connect the basic wires, but as far as the Kelly controller there was a big difference that needed more study and didn't have the mood to do so at that time.
There is a yellow cable that gives power to the controller when you start it up. This is the power on cable. The + and - are the same in both controllers and you connect to both. There is another cable that is the signal of the throttle. You don't need to connect the 5v+ and 5v- since they share the same battery. You will find it immediately since the throttle has its own plug. Also there is another yellow cable with a stripe on the other side from the first power on cable. That is the brake cable and it gives 12V when brake is applied. You will also give both controllers the hall wires with their power cables. Then you will take the phase power wires from the original controller and connect to the new controller blue, yellow and green. These will get the bike running.
There was a problem with the park, and speed selector wires. They work with 4volts and the Kelly controller requires 12v. I mean it has a wire that provides 12v for sensors and you need to connect the return wire but I am not sure where to connect that yet. I need to search a bit more and there is no info anywhere for that. If you connect it to your controller and they are not compatible then the park light will be inoperative on your panel and it will only show ready all the time.
It surely needs a second battery when you upgrade. If you remove the original BMS I think you won't be able to get signals to the panel and I didn't want that. In my case I will make another battery since I have several cells waiting here. It will be put in a back pack with a cable from the fuse for it to connect parallel to the original battery.
In that way there will be less stress on the original battery and less amps going through the plug.
To sum up, it is the best bike in the market until now and it is worth spending a little money to upgrade it. Also with the parameter settings you can customize its motor characteristics in any way you like. It was a shame that it could not go uphill with ease as many people here reported. I am not sure about top speed on the road because of the current limitation from the BMS. It can go up to 70 with the wheel in the air and since I cannot test it, yet, I cannot tell. In any case, though, I can always buy a motor from QS and change it for more speed.
Damn I love this BIKE!!!!
Thanks a lot. Connection does not seeems to be easy at all.. Anyway I will try, perhaps with a new trottle and 12 V display...
I've read many times that connecting batteries in paral.lel is not a good idea... that's because I've asked for changing BMS.
Thanks again
Connection is an easy thing if you know about e-bikes. I suggest you learn a few things before you decide to do things on your Soco. Even if you don't have a diagram of the wires you just use a multimeter to find the signals you want.
Parallel connection of batteries is what saves the wires from melting. It is what makes batteries last longer and with less stress. What is the problem with parallel connection?
Hello all of you.
Parallel problems are described here:
It seems that batteries could get unbalanced and that could become a serious problem.. It is not the same if you connect all the unit cells in a bms system from origin, like supersoco 30 Ah battery.
Anyway I would like, of course, hearing all your opinions, as far I do not know nearly anything about this.. But I know, getting 100A from one only battery is not cheap and perhaps means it needs using lipo batteries, and that is perhaps more dangerous than parallell connection! Thanks a lot
Getting 100amps from a battery like the one in the SOCO would melt the plug on the battery at the very least. The forum you mention has nothing to do with vehicles. Vehicles require a lot of amps and that means a lot of stress if those come from one pack. Splitting the current load in 2 or more requires less amps from each pack and thus making it last longer and creates less heat from the cables and connections.
Watch the next of my videos and see what kind of battery I am making for the SOCO right now. It will be ready for the weekend.
https://www.youtube.com/watch?v=xKIvCNjXOoA
https://www.youtube.com/watch?v=Tejxy7Fmd8M
https://www.youtube.com/watch?v=9KOqa7kT900
The bike is a blast even with current limiter. The acceleration is great and I was going down a slope and I saw the battery percentage going up 3 times!!! I LOVE THIS BIKE!!!
Range has gone up as well. Regen is doing something.
