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post #1 of 6 Old 07-15-2012 Thread Starter
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Using portable battery packs as AC source

The EDEL 665 I am refurbing over the next 4 months does not have shore power built in. As I work on it in blistering 35C+ humid weather this July I am thinking about what it will be like to sleep on it next summer and the need for some air moving fans.

There is the 12v battery for running lights and the one interior ceiling light that I will replace with LED's. There currently is no re-charging system (eg solar) and I am not sure how the previous owner kept it topped up. I think he only day sailed and never over nighted because the settee and berth cushions are nowhere to be seen. Cabin lighting and fans were therefore never an issue for him.

Our planned use will include many nights of "camping on water" therefore our needs dictate fans and more lights.

I plan on adding more LED lights in the cabin that would be AC.

I could get the 30A shore power cord and a 15A pigtail adapter and then run extension cords inside the cabin but we may not always be anchored / docked near shore power. Consequently I was thinking of one of these portable battery backs instead:

Motomaster Nautilus Battery Pack, 800 A | Canadian Tire

I could plug in AC fans and LED lights and recharge when ashore.

There is a nice cubby hole on the starboard side against the cockpit that could hold this

Comments?

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Re: Using portable battery packs as AC source

Thete are some DC fans for marine use which draw little power.

They should work fine for you.

Outboard ?
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Re: Using portable battery packs as AC source

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Outboard ?
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Re: Using portable battery packs as AC source

My personal preference would be mounted DC fans. I like these and think they pull something like a half amp per hour:

Turbo 2-Speed Fan

Maybe upgrade the house battery and get a portable charger? Size the battery to have more than twice the amp hrs as the maximum draw these fans, lights, etc would have over the period you feel you would be away from the dock. Don't over discharge. I bet it isn't much and you could easily have a safety margin. You would have to be present for recharging with a portable unit, however. Installing a shorepower system is probably overkill, but would be excellent. If I was planning to use the boat alot and in need of the power, I would be tempted.


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Re: Using portable battery packs as AC source

Why 120VAC lights when there are lots of 12VDC units available. Just go all DC and install a charger. Will cover both when you have shore power available and when you don't.
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post #6 of 6 Old 07-15-2012
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Re: Using portable battery packs as AC source

I would only use 120VAC if I had an onboard generator. Or never left the dock.

Some things like an A/C unit have to be plugged in. Everything else 12DC works the best. Get a solar panel, and a couple of large house batteries. You'll be fine.

If you go down the road to an inverter be prepaired to spend a few of boat bucks to get everything working.

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