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  1. J

    Cycle Analyst v2 with generic controller and PAS ?

    Well, I finally finished the change with the bike with CA V2 and thumb throttle. The limitations (speed and current) are respected so I'm happy (some fine-tuning will be probably need to be done at some point). I almost thought I had damaged my controller when tinkering because the motor...
  2. J

    Cycle Analyst v2 with generic controller and PAS ?

    When you talked about the wrong wiring of CA depending on versions, I double-checked my work but everything seems good (even the 1K resistor), and at least comparing with documentation from CA V2.3, V2.4 and 3.1, all versions share the same pinout for the CA connector. My generic controller...
  3. J

    Cycle Analyst v2 with generic controller and PAS ?

    Hi all, I bought a 2nd hand ebike which had a 24V battery (I don't remember if it was lead or lithium), some years ago. I converted it to 10s lithium a while back and it worked great but much too fast for my needs (the bike could go at 38 kph if I pedalled enough). I bought a CycleAnalyst V2 in...
  4. J

    Razor e300 ultra. Technical guide

    I found the nuts I needed: 12 mm diameter, 125 thread pitch (not sure what that means). I was lucky enough to find an ebay seller in my country selling these at a reasonable price. From discussing with specialists of nuts and bolts, this format of nuts is pretty standard in auto parts, but could...
  5. J

    Razor e300 ultra. Technical guide

    Hi, I bought this motor from the same seller. I have trouble finding the exact nut for securing it to my frame. The shaft is not suitable for a M12 nut (the nut barely can engage on the filets) and M13 is too large for it. I think the thread is not metric, but I have no tool/no knowledge to be...
  6. J

    Repair of BMS ? ISD 10S 40A

    It was a typo, it was listed correctly on my paper :( Fixed on 1st post. You're right Cell0 is the row of cells closest to Ground. I definitely use the test points of the balance shunts to measure the voltages. Of course, I meant Gate instead of GND :mrgreen: I also know (in theory) the...
  7. J

    Repair of BMS ? ISD 10S 40A

    Hi all, I have an old problem that I want to fix with the help of people here (if they can/will). My battery is 10S 8P Li-Ion. I've noticed for some time that It wouldn't take the charge anymore (displays 0A of charge current if I try). I have postponed the repair until I could afford to spend...
  8. J

    Throttle keeps frying !

    OK. One of the throttle that was installed is fried. When I connect it to my bike, the rear wheel turns as soon as I power on the controller (without even touching the throttle). So I guess the sensor is now bad (this throttle is a spare in my box in my garage). The other throttle (installed on...
  9. J

    Throttle keeps frying !

    After Chalo's advice, I checked the voltage from the 3 pin throttle connector: nothing ! As a matter of fact, at this time, I remembered that I only connect the 2nd motor/controller when I see fit (most of the time, the 2nd controller isn't active). And when I powered on the 2nd controller...
  10. J

    Throttle keeps frying !

    Hello all, I have a 2WD ebike at home that gives me headaches. I installed a 2nd motor at the rear of a bike that only had one originally. The only battery of the bike supplies the two controllers, and the brakes are only connected to the front controller. I installed a throttle to control the...
  11. J

    Bulk charging via digital DC-DC boost Minghe BST-900W

    I have several BST900 (2 in my solar shed to charge ebike batteries, another one to transfer energy in a more open way) I noticed only 1 had the IXYS part, the other two were the inferior Fairchild reference. I managed to bulk charge one of my batteries at 6Amp, the input current was like 12amp...
  12. J

    Opening a hub motor - FAQ

    Thanks for your answer, momotech. Alas, I can't build a strong tool since most stores are closed at the moment due to the crisis. I saw an adjustable wrench on Amazon: https://www.amazon.fr/gp/product/B07Q43HBC2/ref=ox_sc_act_title_1?smid=A2NCAO2WVRYTOH&psc=1 that I will probably buy. Means...
  13. J

    Opening a hub motor - FAQ

    Hi all, I add my own question here because I bought a while ago a 2nd hand BLDC hub motor on the french equivalent of craigslist. My first tests showed that the motor will run on some occasions (I haven't figured out which ones yet, the errors were not repeatable if I recall correctly). Now...
  14. J

    Adding CA-DP connector to non-CA-DP compatible controller

    Hi Micah, I'm posting this here since I cannot send any comment on your web site. I applied your technique of adding a CA connector to a standard controller (from a GreenCity bike from 2009), and it worked great with a CA 2.4. I did this to moderate the original controller's ardor, which...
  15. J

    2WD Electric Yuba Mundo Build

    I'm late to the party, I know, but wow, this build is just awesome. And every aspect of it is so polished... And it is very well documented ! Not the kind of resource seen everyday ! Thank you for that (and also for the tutorial about adding "turn signals" to an ebike, I'm adapting it for my needs)
  16. J

    kWeld - "Next level" DIY battery spot welder

    When I said "built" I meant just that. I didn't CREATE the spot-welder, another ES member did (pguk)
  17. J

    kWeld - "Next level" DIY battery spot welder

    Your project looks excellent ! Smaller than the one I built (6pence resistance spot welder) and only asks for 1 source of energy !
  18. J

    XPD: open-source keywin e-bike lab replacement

    It's not a permissions issue, I run XPD in sudo mode. It's just that the program waits forever that the controller is connected to the USB port, whereas it is already ! I pushed the USB-TTL switch for 10 secs but to no avail.
  19. J

    XPD: open-source keywin e-bike lab replacement

    Hi all, I tried to use the XPD program, which seems so much more simple to use than the Keywin software, but I have several problems.... First of all, my Xie Chang controller (supposedly on ver 6, which infineon number does it equate to ?) was delivered with a 5 pin MALE JST plug, which is...
  20. J

    Controller damage on Tidal Force controller

    I had this kind of option in mind. I ordered a 12 FET controller from Lyen, will probably use it with whatever powerful motor wheel I can get (RH205 or something newer). Thanks for the advice 8)
  21. J

    Controller damage on Tidal Force controller

    Erm, I'm out of luck at the moment, my TF gave up the ghost this afternoon while cruising at only 15 km/h ... I *think* I pressed the brake levers and the thumb throttle at the same time. Now, only the pedestrian mode works :cry: The bike deserved more than this senior moment :oops: I...
  22. J

    Controller damage on Tidal Force controller

    Hi all, I happen to have applied an overvoltage to the stock TidalForce controller (Full 12S LifePO4 + Full 1S LiIon, which makes more than 44V). The controller sort of work, except: Cruise control and Turbo (the corresponding leds work fine, it's just their function doesn't). The info stored...
  23. J

    E+ powered by A123 20 Ah pack UPDATE

    Hi, The keyswitch from my tidalforce doesn't work anymore since I use an external battery (this is a known, documented "bug"). I want to use a keyswitch to disable the controler when I'm away from my bike, how do I do it ? On the "Everything Tidalforce" website, does anyone know where is...
  24. J

    TidalForce woe (was: How to uncripple Matra's Tidal Force ?)

    @AL: :wink: Yes the TF is a very nice bike, if only a bit too heavy. Thanks for the info regarding the keyswitch OK, I spent quite some time today adding a low-cost voltmeter to the TF. The main component was found on ebay for 1 EUR+shipping :mrgreen: The connectors were bought from Deytrade...
  25. J

    TidalForce woe (was: How to uncripple Matra's Tidal Force ?)

    OK, sorry for not replying sooner, I was away from home for quite some time and hadn't the opportunity to convey some tests until recently. Long story short, my TidalForce is functional again. It was the right brake sensor, a lose screw was keeping the two pieces of the sensor at an angle, thus...
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