Hi guys, I scored an electric scooter on trash day. (A Schwinn zone
5) Of course the SLA batteries were toast. (2 X 12V @10A-hr.) But I?ve got two old power wheels from when the kids were younger. (What, me throw something out?) 4 x 6V @12 A-hr. I charged up the old batteries but found one of those was dead also. (It refused to have any charge pushed into it.) So I figured with three I?d have 18V which should be enough. And it is, it runs fine. (maybe 10mph on a flat.) Now here?s the problem. There?s an electronic speed control (hidden somewhere.. I haven?t found it yet.) And there must be a low voltage cutout in the controller. So when the current draw drops the battery voltage below some point the controller cuts out. So I?d like to find out first where the speed control is hidden. And then I?m hoping I can hack it and drop the voltage cut-out. I?ve done a few web searches, but I mostly find sites where they want to sell me something... nothing useful. Any hints on finding schematics for something like this would be appreciated.As a side note: I took apart the thumb throttle control on the handle bar and discovered only a pot. The sad news is that it looked like a little trim pot... I guess those last a bit longer than their 200 rotations spec.
Thanks George H.