Thank you Fechter. Speedometer function can be taken over by a CA, no big deal. Gutting this controller would be a pity because the FETs are 100V, the relays go up to 75V, so with some, probably software, mods one could run with 72V and not have any externally visible modifications. I am hoping my dealer can extort some know how from A2B
If it comes to gutting then more questions arise like where do I mount the controller?
I also would like to have flexibility with regards to speed and range. Normally I would use the frame battery and my external pack sequentially to get more range. But I can imagine scenarios where I would like speed (off road only of course
) and would like to put the 36V frame battery in series with my 48V external pack. Ideally I would like to rebuild the frame battery with 48V as well so I could run 96V for speed or something around 30AH at 48V for range. Do you know which Lyen controller would be flexible enough to handle 36 - 96V and around 35 - 40A ?