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  1. J

    CT-22 Speedometer with Fardriver Controller Problem

    I am trying to use a CT-22 Speedometer Display with an ND84530 controller. I have everything connecting and working but as soon as I turn everything on, the speed value jumps around some high value (like 98mph) and throttle input has no effect on the speed. Here is a video of the above: I...
  2. J

    Sabvoton 72200 stuck in reset

    I have a Sabvoton 72200 with TFT display that is stuck in "reset" mode - that is, whenever I connect to the controller via bluetooth using the MQCONN iOS app, the controller status is "Reset" and all values are 0/Null Confirming that I have brown/yellow/green communication cables...
  3. J

    Key ignition solutions

    I purchased a Sabvoton controller with the LCD screen - apparently the LCD version does not come in the ignition lead to the controller. Id like to use a key switch to toggle electrical power to the ebike. Key in off position - no electrical power. Key on = power on. I was going to use the BMS...
  4. J

    Circuit Breaker for high-power ebike

    Thank you! would one of these work? Also, why on positive lead, rather than negative?
  5. J

    Circuit Breaker for high-power ebike

    People with ridiculous high-power ebikes: what (if anything) do you use as a circuit breaker between your controller and battery? The bike I'm building will use the Sabvoton 72200 controller (200A battery current) and 72V 42Ah battery. The peak current in the system will be roughly 200A. What...
  6. J

    Display not working with controller

    I upgraded the controller on my bike from a 45A controller to this (https://a.aliexpress.com/_dYWYeOn) 60A controller Im using the display that came with my old controller (https://imgur.com/a/QSJ9v1U) and am able to power up the new controller and use the throttle, but nothing else works. The...
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