Recent content by that1guy

I was probing around with my oscope and found that purple wire, relative to chassis ground, blips up to 4.5V for 0.2s every 2s. This is considered one LED blink. If I unplug my throttle, I get 15 blinks = error code 211 = throttle short to gnd. The purple wire has about 1.5kΩ of source...

LED attached to RS485... what? :lol: I attached the full surron wiring diagram. As you will note, RS485 connects the battery, motor controller, and display on the same bus. Reiterating, the LED must be connected some combination of those two Comm lines (purple or blue wires) and ground...

Here's the pinout of battery 6-pin connector. I imagine the LED is wired from one of those Comms to ground, probably with a resistor in series. I imagine one could simply remove the tape on the debug harness and see how the LED is wired. Reference...

Code repository...programming a micro.... :roll: huh? You're over complicating it, lol. It's just LED that blinks X flashes. LED blinks vs error code / meaning: https://sur-ron.ch/pdf/Light_bee_L1e_blink_code_EN.pdf I'm trying to figure what two wires the LED goes between. If there's some...

Does anybody know the pinout / wiring diagram of the surron programming/diagnostics cable? It has an LED that will flash out error codes. I lost mine many years ago. Trying to trouble shoot faults but don't want to wait around for shipping...

I also installed the Luna belt kit. Listening to your recording, I can confirm i hear a very similar buzz. It's kinda annoying, but I'm not gonna throw the baby out with the bath water.

I did an experiment to find maximum charging current that the surron BMS will allow: 20A is ok, but it will shut off at 25A. Thought this would be useful for those experimenting with a non-surron chargers.

I've been using my own power supply to charge the surron at work for the past week - it's been working fine. But today I arrived with 14% charge and my power supply won't charge the surron battery. I measured 53V on the surron charge connector and main terminals. Anybody else experience this...

@Joachim, @captain387 - thanks for links, quite helpful. :) Why do they list tires as "Front". Something to do with load rating perhaps? Maybe this applies to more powerful motorcycles where the rear tire would see more sheering force. You guys are using these in both rear and front I...

Looks like there are no practical options for 19 inch (rim size) street tires. Only thing I can find is the Avon AM6 Speedmaster Motorcycle Tire, 27-19 for $167 at bikebandit.com https://www.bikebandit.com/tires-tubes/motorcycle-tires/avon-am6-speedmaster-motorcycle-tire/p/3324?b=44372&CRTP=psc...

I took apart my connector. The third pin is not used.

Anybody have pictures of the battery internals? Also looking for battery case dimensions. I am considering building a custom pack with 2170s.

Another alternate way to control the eltek: Use raspberry pi + python + cheap CAN-USB dongle https://github.com/jutshanahan/eltek-control http://canable.io/

+1 for a 1.8kW

Dawn, is CAN termination required?