Batteries have been dead for a couple years .....  got new ones .. rather expensive - but these guys are BIG GUNS ..  LOTS OF POWER !!!

The wiring was all messed up from when I was building my own H-bridges, forgot how it all went together.  Got a Volt/Continuity tester and figured it out.

Batteries are wired in series ... so 24V with a 12V tap.  It comes with a re-charger Yay .. and it appears I have left that circuitry worky.  The control circuitry has long ago fried, and I created my own H-bridges which worked momentarily (and then fried) ..  Now I have a Sabertooth, which I am hoping will enough strength to work.

Mats

8 years 11 months ago

What happended to the original wheelchair electronics ? I'm sure it wasn't just an on/off switch... Because if it was, that would explain what happened to the previous owner ;-)

Ahahaah ..

"Original" elelectronics was very impressive and made for safety.  They had all sorts of "chair will not move if" electronic stuff.  I kept trying to by-pass it all, until eventually I managed to fry them ...
So yes, big clouds of smoke....

And then I built my own heavy duty, super in-expensive, H-bridges ... Which worked, until I accidently hit a wall, which stalled the motor, and blew all the mosfets ...  My inexpensive design did not have overcurrent protection ... 

We'll see how the sabertooth holds up.

Unprotected cables on an aluminium plate... What could go wrong ? 

At least now you have the power to make lots of smoke. Eye protection recommeded