Dual battery setups!

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Postby Komodo » Wed Aug 29, 2007 6:04 pm

Well slug that all depends on the output graph of the alternator. Some alternators start making 80-100 amps @ 14.4V at about 1800 RPM though most start at around 2200rpm making serious current.

I guess it depends on how long he is "idling" the car for and how much heat is being generated and how quickly his start and auxillary battery take charge.
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Postby slug » Thu Aug 30, 2007 10:20 am

Yeah thanks, that all makes sense. Either way i think a batt upgrade or go for a drive would be better.
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Postby Komodo » Thu Aug 30, 2007 12:51 pm

Thats my opinion too.

And yes an alternator will only charge a battery to about 80-90% max.

So yes when you get home chuck it on the battery charger to charge it up fully. This is where the Electronic isolators have it over the solinoid type as some of them will do a 100% charge. I have schematics going on in my head on how to get a solinoid to doo a 100% charge using PWM technology. But thats a whole new novel LOL
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