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Hi,
Well, I cant really be sure. I just bought the sled a month ago. It had the battery and the electric start installed at the time. The PO started the sled via the electric start using a jumper cable when we bought it to verify that it worked.
However, when I was about to install a new battery, i decided to check the voltage in the charge circuit while i waited for the new battery to equalize and charge. I set my meter for VDC and got only about 3 volts or so. Natrually i suspected AC and switched to VAC and read 12VAC with a little throttle.
Nobody seems to know how this sled is supposed to be wired. I have a manual for a 91 EXT (same chassis diffrent motor) and it doesnt reveal any secrets. The parts diagrams from AC dont talk about a rectifier for electric start either. So I am guessing at this point.
As for "potting", once i know it works i'll probably encase it in epoxy when i know for sure it works. For now, it's slobbered with hot glue on front and back for insulation.
For current limiting, i didnt make any provisions. This circuit is only capable of delivering 1amp. Once the battery is 'full' no current will flow anyway. An inline fuse will make sure there are no fires if i'm wrong. I've seen a few peak detecting circuit designs out there but i think thats overkill.
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