cabin power supply: 120VAC to !2VDC @ 19A

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cabin power supply: 120VAC to !2VDC @ 19A

Postby Bob Hammond » Sun May 28, 2017 6:59 pm

This looks like it has potential for cabin power, for $56:

https://www.radioshack.com/products/rad ... aQodTq8Hww
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Re: cabin power supply: 120VAC to !2VDC @ 19A

Postby John61CT » Sun May 28, 2017 8:33 pm

If the cabin is on the grid or has a gennie, and you want 12V power output, yes.

Can't believe Radio Shack still has a heartbeat!

Samlex or Mean Well would be a better bet for quality and longevity.

Sometimes get bargains on eBay, but 19A is higher than usual at the low end.

Don't try to charge a big battery with it unless you confirm overload protection built in.
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Re: cabin power supply: 120VAC to !2VDC @ 19A

Postby pmowers » Sat Jul 01, 2017 6:11 pm

Don't forget about Ham radio suppliers, I got a 30A, 13.6VDC (adjustable) with V/A meter for under $90. http://hamstation.com/shopping/index.php?main_page=product_info&cPath=176_256&products_id=3828 It is small and comes with a 1 yr anything goes warranty.
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Re: cabin power supply: 120VAC to !2VDC @ 19A

Postby GuitarPhotog » Sun Jul 02, 2017 2:11 pm

Just don't try to use one of those to charge a battery, they will kill it very quickly.

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Re: cabin power supply: 120VAC to !2VDC @ 19A

Postby John61CT » Sun Jul 02, 2017 6:36 pm

Actually depends. A quality unit with overcurrent protection, or a smaller/less depleted/low CAR bank that never asks for 30+A, should be NP.

But user watching the amps, not automatic
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Re: cabin power supply: 120VAC to !2VDC @ 19A

Postby GuitarPhotog » Sun Jul 02, 2017 8:32 pm

John61CT wrote:Actually depends. A quality unit with overcurrent protection, or a smaller/less depleted/low CAR bank that never asks for 30+A, should be NP.

But user watching the amps, not automatic


Usually a regulated 12 VDC power supply puts out 12.0 VDC. A lead acid battery needs more than 13.2 to charge, usually 13.4 - 13.6 in normal charge mode.

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Re: cabin power supply: 120VAC to !2VDC @ 19A

Postby John61CT » Sun Jul 02, 2017 9:03 pm

I was talking about that specific unit.

Many even non-adjustable are standardized on 13.8V.

A BM like Victron 702 can be set to flip a relay when the bank is full.
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