I have a batch of Large Screen Direct Plug-in CA's that I am offering up for $120 shipped to the lower 48 states.
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I am offering a special service:
If you would like to ship your controller to me I can calibrate the CA to your controller as well as set up any special functions that you like (current limit, speed limit, wheel diameter, etc). This service is free of charge. You just ship me your controller via USPS (~$5 - $10), I will perform all the calibration procedures, then ship your controller back to you with the CA free of charge.
Cant beat that with a stick...
Now... I am not even going to operate your controller or open your controller to perform this calibration so I am not
offering to repair controllers, swap mosfets, install caps, install CA taps, or anything like that. I am just offering to measure the shunt in your controller and program the CA to work perfectly.
If you are "post office impaired" I can offer another service: If you can pack your controller in a box and weigh it I can send you a shipping label and all you have to do is set the box out front and the postal worker will take it away. For this service I will charge $15.