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Old 10-25-2020, 06:12 PM   #1
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Electrical system from scratch

I am pretty electrically inept and i k ow there are electrical experts out there.
I am going to have a house battery that is connected to the alternator to charge while driving. But how do i connect this house battery to shore power when stopped? Can i just connect a regular battery charger to it with it plugged into the 20 amp shore power? Does this work also if i using power out of the battery at the same time? Or options to have a inverter and 12v connector pulling power of low watts.
Hope this makes sense what i am asking.
Thanks
Andrew
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Old 10-25-2020, 07:20 PM   #2
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Quote:
Originally Posted by andrewpm View Post
I am going to have a house battery that is connected to the alternator to charge while driving.

Connect the house battery to the battery under the hood and use a battery separator. First choice would be a blue sea 7610 or 7622 for more features at a higher price point. Surepower also make separators that work well.



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But how do i connect this house battery to shore power when stopped?

There are a couple of common ways to do this that come to mind...


A transfer switch is a common way to do this.......these are built into Inverter/charger combo units; if you are planning on installing an inverter and want shore power consider an inverter/charger.


..or for a little less $$ you can install a charger/converter....Intellipower is a popular brand, if you go this way you want the optional charge wizard gismo that turns the dumb charger into a smart charger (I find the whole thing dumb.....they should just have the smart charging circuitry built into the charger/converters.)



Quote:
Originally Posted by andrewpm View Post
Can i just connect a regular battery charger to it with it plugged into the 20 amp shore power?

See above..you can, but that's a bit ghetto and those chargers are usually dumb. A smart charger/converter provides much better care and feeding for your house battery.



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Does this work also if i using power out of the battery at the same time?
Sure


Quote:
Originally Posted by andrewpm View Post
Or options to have a inverter and 12v connector pulling power of low watts.
Hope this makes sense what i am asking.
Well..everything made sense up until your last question.....not sure what you are asking...
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Old 10-26-2020, 07:40 AM   #3
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You can get "AC/DC power centers" at a reasonable cost compared to a stand-alone converter/charger that integrates a smart converter/charger with an AC breaker panel and a fused DC distribution panel. It's definitely less expensive and much easier to install compared to a stand-alone converter/charger plus stand-alone AC and DC panels. Here's an example from PowerMax:

https://www.invertersupply.com/index...IaAsXvEALw_wcB

I'm currently in the process of installing one in my self-build.
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Old 10-26-2020, 08:20 AM   #4
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Bcam: Inverter supply looks like they supply lots of useful stuff....excellent link...
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