Adapter Cable for KT LCD3

adamsavage79

100 W
Joined
Dec 7, 2017
Messages
226
Location
Ottawa
I’m looking for an adapter cable for the KT LCD3 display. It appears to use a HIGO-style connector, but I have (not yet installed) the KT 45A Sine Wave Controller.

I’m also interested in getting MT60 pigtail connectors, preferably color-coded yellow, green, and blue to keep wiring straightforward.

Just to explain what I’m trying to do:
My current motor is rated for up to 2,000 watts. I originally assumed that meant faster off-road speeds, but it turns out it’s maxed out on RPM and only benefits in terms of torque. So now I have this 45A controller I can’t use yet — I need MT60 connectors for the motor phase wires, and the KT LCD3 display since my SW900 isn’t compatible.

Thanks!
 

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Last edited:
Why MT60’s? If you have 45A (battery current) then your phase current can be 2 or 3 times that under load. Choose at least a 90A connector.

Going up in voltage also raises the entire torque curve, in case that factors into you battery voltage decision.

The pin out for both the JST and HiGo KT connectors can be found online, so cutting off one of the connectors and replacing it is also an option.
 
The controller and motor plugs don’t match, which is why I’m planning to use MT60 pigtails and splice them into the phase wires directly. My soldering skills aren’t strong enough to confidently solder wires to bare MT60 connectors, but I can splice pigtails without any issue.


As for the battery, it’s a 48V 30Ah pack rated for up to 3,000W. I’ve been told that’s well within safe operating range and won’t be stressed at the controller’s 45A max input.
 
I have used the Julet/Higo plugged KT controllers for folks who want them or have already bought them, but overwhelmingly I seek out and use KT controllers with JST plugs and separate unjoined phase and power wires. The smallest ones I've used are 15A, the biggest are 60A. Why not use one of those? They're flexible and easy to maintain. After a short irritating orientation, I now am comfortable crimping and installing JST-SM plugs.

You can select whatever phase and power connectors you like. I'm partial to Anderson Powerpoles and Anderson SB50.
 
Yeah, I made a pretty big mistake—I trusted ChatGPT too much. It kept assuming things and forgetting details, and I ended up going down this rabbit hole. I got spoiled by the instant replies, when really, I should’ve just come here from the start and said, “This is what I wanna do, and these are the motor’s connectors,” etc. So now I’m thinking I’ll stick with the controller, but limit it to 35A. The KT display is actually an upgrade compared to what I have now. I also found out I need a KT display with an SM plug, so it’s just plug-and-play—no soldering or anything. Lesson learned I guess!
 
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