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post #49 of Old 11-28-2017
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Re: Solar heating element for water heater

You're putting major juice to the batts with the engine when charging the fridge - not the 170w solar. Dunno what your alternator and regulator system is...
560 worth of regular or agm batts are probably worth 170ish amps usable (not going below 50%) unless you are running the engine overtime to get them past 20% long wall of charging.

The only way you will have 'overage' solar with 240w solar will be because of engine charging.

Just a thought....

Why do you think your batts are full....what tells you that?
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