my cables got hot because i was sending the juice down the line and the starter was not using it well, no hot cables since the rebuild, no new cables, and the battery lasts, The jetworks is a huge battery, of course it cranks the crap outta your motor. Like i said, my almost new oem starter got crappy and you probably have not opened it to see inside it. i am just a bit curious as to why your ski killed a bigger battery faster than scotts.
Quick brush-up on electrical theory:
Bad starters draw a lot of current. They use that current just fine, they just need more of it as they get older or worked over by SBT. :biggrin: The current through the positive cable, starter, and ground cable is the same everywhere.
Cables get hot because they dissipate power.
Where does that power come from?
Voltage drop and current.
Current increases with a bad/old starter, no arguments there.
But what about voltage drop? You get that only if you have significant resistance in the cables. Which you shouldn't have with good cables. Considering how heavy and short those cables are, you shouldn't have more than a fraction of an Ohm per section.
With a 0.1V drop in the cable (that's already pretty high!) and a bad starter using 100 Amps (really high), the power dissipated by the cable is 10W. That's nothing for heat in such a relatively large mass of metal.
Your cables don't heat up anymore because your new starter draws less current. Your electrical system can still be improved by better cables.
FYI, the Jetworks battery is spec'd at 295cca. It's not that much bigger spec-wise than the little Shorai, at least on paper.
Besides, I didn't "kill" the battery, it just got to the point where cranking dropped it below 10V momentarily. Still cranked fine. You could get a lot more hours out of it on an MSD setup. (I think I explained this a few pages ago :biggrin
Any other iginition will keep firing as long as the motor is cranking. The ATP does not. That's the problem.
Edit: Once the starter gets so bad that it nearly or fully stops while current goes through it, you have a short circuit with hundreds of amps going through. Then you get hot cables even if they're new. But by that time you have other problems.