The Bladez XTR SE 450 and 500 are virtually identical so the same conversion controller will work with either model.
The most popular controller that we sell for replacing original 24 Volt 500 Watt controllers is our item # SPD-24500B. This is the controller that I recommend for the conversion. To make things easy I would replace the controller with the SPD-24500B and the throttle with a THR-35 or any other standard 3-wire throttle that we sell, this way you know that the new controller and throttle are compatible with each other.
Controllers are too complex to easily test, so testing the parts that are connected to the controller is the best way to determine if it is working or not. I would start with testing the batteries. They should be tested for proper Voltage both without a load and with a load. The motor can be wired directly to a battery to make sure that it works. The power switch and circuit breaker or fuse can be tested for continuity with a multimeter to make sure they work. The throttle can also be tested, if it is a two wire throttle then it can be tested for continuity, and if it is a three wire throttle then it can be tested using our Throttle Testing Guide.
Here is a link to our 24 Volt controllers: https://electricscooterparts.com/speedcontrollers24volt.html
Here is a link to our standard 3-wire throttles: https://electricscooterparts.com/throttlesstandard.html
Please let us know if you have any questions.
I was looking at the wiring of the SPD-24500B I would imagine that it would work on my XTR-Transporter would it not? I would have to get the mating pin connectors to match the exiting wires , but what about the key switch connector, my Transporter does not have that option. What would I do with it? I would also need to change the throttle from a two wire micro switch to a three wire.
Any of our standard 3-wire throttles such as our THR-35 will work with the SPD-24500B controller, and also any of our 4-wire throttles with battery level indicator lights such as our THR-46 will work with it also.
Please let us know if you have any questions.
The signal wire may be green, blue, or white on some throttles.
I have seen 3-wire Bladez XTR throttles with green and white signal wires. The red wire will always be +5 Volt input, the black wire will always be ground or negative, and the remaining third wire will always be the output signal wire.
If during this test the throttle has around a 0.8 through 4.2 Volt output signal depending on the position of the throttle then it is compatible with our controllers. The throttle should be around 0.8 Volts at zero throttle and around 4.2 Volts at full throttle. The controller reacts between 1-4 Volts so anything within this Voltage range is acceptable.
Please let us know if you have any questions.
Yes the THR-38 throttle is compatible with the SPD-24500B controller. When wiring these two parts together the following wires go together:
Your order has not shipped yet so I have placed it on hold and asked one of our customer support agents to give you a call to take the new order for a THR-38 throttle. You should be getting a call from us within a few minutes.
Please let us know if you have any questions.
Normand Doucet, I'm working on almost the same thing. Could you post some pictures. Merçi beaucoup aussi.
Normand Doucet