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  1. E

    Bionx Battery problem

    This seems a highly exaggerated scenario. If a cell goes well above 4.3v for an extended length of time or stays below 2.5v when not under load, I would expect that cell to exit the equation.
  2. E

    Bionx Battery problem

    IIRC this only applies to the Bionx batteries with 37v or below. For these models, Bionx used cells that tend to balance spontaneously. With the 48v batteries, however, they introduces a proper BMS that would balance cells in series (parallel cell balancing is always spontaneous, I think)...
  3. E

    Bionx 37V motor with 24V battery?

    I would be willing to sell it for 100 euro plus shipping. I would be happy if someone can get some use of it. However, I would be reluctant to try out such advanced experiments with bionx, as there's aboslutely no support from the manufactorer/distributer if something doesn't work out. I have a...
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    Bionx 37V motor with 24V battery?

    I certainly do. But if your battery and controller are from 2008, wouldnt they be made for ~26V?
  5. E

    Bionx for 145mm dropouts

    crichman - I assume that the SL model still needs a puller to remove the collar even if it isn't adjustable, right? If I could have someone machine a longer collar, wouldn't that solve the problem? If the collar would be made to be 8mm longer (rather than 10mm), I think I would still have just...
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    Bionx for 145mm dropouts

    I recently got a decent deal on a Bionx 350 SL that I intended to put on my Cannondale tandem. But as it turns out, the dropouts on this tandem are 145mm and the Bionx is designed for 135mm. Had it been a steel frame, I could probably stretch each rear triangle 5mm quite easily, but this doesn't...
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    Bionx 37V motor with 24V battery?

    I bought a Bionx 250 HT motor from Ebay.de only to find out too late, that it was a I2C protocol version. I didn't think Bionx still used that protocol when they introduced the 250 HT, so I didn't ask the seller about the protocol before buying. Anyway, a potential buyer has turned up, who would...
  8. E

    Bionx Battery problem

    I just spoke to a German guy who has worked with Bionx since 2007. He claims that the Err 22 can mostly be cured through BIB intervention, i.e. either software update, reset of the BMS, or possibly some bootloader business, that I didn't quite catch (we were speaking German :shock: ) I expect...
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    Bionx Battery problem

    So you are replacing only the cells, not the BMS?
  10. E

    Bionx Battery problem

    And how do u feed the can bus (5v)?
  11. E

    Bionx Battery problem

    dnmun: A spark when inserting the fuse is normal, according to a Bionx workshop manual from 2011: "Setzen Sie die neue Sicherung wieder ein. Achtung: Die Hauptsicherung setzt das System sofort wieder unter Strom. Es ist daher normal, dass beim Einsetzen ein kleiner Funke „überspringt“."...
  12. E

    Bionx Battery problem

    Hmm, orange indicator after just two days - I think I may also have some part of the BMS consume energy. I would sure like to find out if it's likely to be a component that could potentially be replaced by a non-bionx technician, as I don't have a Bionx dealer within driving distance. EDIT...
  13. E

    Bionx Battery problem

    Hmm, I also get a spark when I connect the fuse. My battery is not dead though, the can bus system works (e.g. torque, speed and voltage can be displayed), only no power goes to the wheel. I linked to my thread regarding this below. I didn't look for any heat on the board, while the battery was...
  14. E

    Bionx Err 22

    I've bought a s/h mtb with a Bionx SL 250HT (48v) kit installed. I worked great for about a week, and then one morning, after making the usual spark/popping sound (nothing dramatic) when I slid in the battery in the dock, the bike didn't deliver any assist. In diagnostic mode the display shows...
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