This is for a colleague. I couldn't defer a call of nature as my "mind's eye" saw this one and had me belly-laughing very involuntarily.
Technically, he's got a disabled persons' buggy, replaced the 12V drive motor(s) with a 24V variant from some other moving machine, added a second 12V battery to give 24V in total - and when he tried it it went straight to full power and "wheelied" off.
My "mind's eye" had the seaside harbour tourist destination interrupted by a mobility buggy "wheelie-ing" and squealing its tyres, lunging across the quay and slingshoting itself and its occupant off the harbour wall at about 25mph, flying on a parabolic arc and crashing into the sea some distance off. Its occupant letting out a cry as his watery immersion came ever more imminent. I could see dumbfounded holidaymakers there with icecream dropping off cones onto the floor thinking "did that really just happen??" "what am I supposed to do about what my mind is telling me just happened?".
Anyway - back to the technical point... How can he get twistgrip proportional control back for his new 24V setup?
He was asking around at work, but while they do seriously powerful hydraulic drives and mechanisms with some electro-hydraulic valves, this proportional control power electric drive is outside the experience.
So technical help would be appreciated.
Other forms of help implied - well, it can be a bit demented in these far-flung fishing ports clinging to the side of rugged landscapes, so this is nothing too outside the local normal to deal with.
Regards, Rich Smith