Hello, blast from the past ‘Bionix’ Smart eBike

[Jogon]

I have acquired a Smart eBike, the Bionix system, it works of a fashon but the battery appears caked.

Does anyone have a spare functioning battery for one of these? or indeed any spares at all for the
Smart Ebike, I have the Original Crystal White/Energy green version

Or is there anyone that can repair the battery

I’m in the midlands UK

 

[lnanek]

I have an old 36V Bionx battery laying around from when I upgraded to 48V that you could have, but I'm over in SF Bay Area. So doesn't help you much.

If the old battery is still strong enough to run the electronics then I would just wire an extender into the motor cable. Just need to keep negative connected to the old battery for a common ground for the CANBus. There's hundreds of posts about it over at:

BionX

Fertig-Pedelecs, die mit dem BionX-Antrieb ausgestattet sind.

www.pedelecforum.de

Personally, the thing I dislike most about bionx is the cramped little thumb throttle that makes my hand hurt after ten miles. It sends a .1V negative pulse PPM signal (between 180usec and 400usec long depending on how hard you press every 30msec) to the console over a two wire DC jack that is daisy chained to the brake sensor (which brings a 4.6V signal down to ground when you pull the brakes). So it's fiendishly tough to replace with a standard hall or potentiometer based twist throttle:


There's a wheelchair assist firmware you can flash the Bionx system to that says it supports a twist throttle, but I haven't figure out where I would wire it to. Manual claims it is a potentiometer:


There's also a "throttle polarity" console setting that might make it accept positive pulse PPM, but haven't tried it yet. Wish they'd just used analog voltage or at least PWM. Not even any of the RC airplane PPM encoders I can find are designed to only use .1V.

 

[Jogon]

Thankyou for that comprehensive reply, it’s much appreciated. I will check out that links that you kindly helped with, you’re right SF is just a tad far for me to come and see you.

I’ve had the battery plugged into the charger for the past 48hrs, it hasnt made any difference, I can put the screen dispplay on but as soon as I remove the power to the charger the display dies instantly.