How much alternator do I really need?
Soon I hope to have my truck and 5th wheel. Since I will be new to 5th wheels I like to get advice about 5th wheels. One thing that I had been told is that I should get a high output alternator, aroun...
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#10 wire isn't nearly big enough to get enough amps back to na RV battery or battery bank. That's why I use #2 ga fine strand welder wire or sometime they call it "cable". Go striaght back and fuse it with an 80 amp marine slow blow fuse. Cheap setup and assures safety. The fuses come in 60, 80 and 100 amp and are a couple bucks each but I've never blown one yet in 10 years. It allows real charging and fast! The fuse holder screw clamps the fuse legs between contacts due to the high current and is approx $18 at West Marine here but it depends where you buy it. East and west coast the price is usually $22-$24 so I've been told. This allows you to charge with 60+ amps which makes short work of recharging. Just imagine how many big solar panels you'd need to even get 20 amps of charging. It would be cost prohibitive and you need a controller also that's capable and God forbid if there's clouds or tree shade.
