Posted by admin on Monday, December 13, 2010 · Leave a Comment
HI there. I have an '08 Toyota truck, which has a 150? amp alternator. If I have a bank of 3 deep cycle (possibly 175 Ah) batteries, can this setup run a 5000 watt inverter at less than moderate use (basically running power tools, etc, and once in a while a small welder) not exceeding more than an hour at a time for usage? Or is this too much for my alternator? Any suggestions?
I forgot to mention, I do have a separate 800? CCA battery for starting. The 3 deep cycle batteries are switch separated... also of mention, i stated 175 ah, but that is 175 ah per battery. With that type of load, 5000 watts I assume would be max around 450 amps for 1 hour... so is this setup overkill or will it work, with little or moderate use? Can't the batteries themselves run 5000 watts for almost an hour (constant load), which is more than what I will use. Thank you so much for your help.
The welder is a small lincoln mig welder, 20 amps current rating (max), if I remember right.
I think a welder will be too much for almost any inverter set up with any standard alternator. I suggest that you refer to marine applications, westmarine.com has good info on this. At the very least you should have a battery switch to isolate one battery to keep it safe for starting. An adjustable voltage regulator and battery isolators may be of help also. You may have to consider acetylene or a generator.
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