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Old 05-13-2010, 12:04 AM   #15
tpi
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When I had considered four batteries in the back of pickup I was thinking about a low profile rolling cart with tie down hooks on it so the the batteries could be ramped into the back of the truck. I was thinking of the inverter mounted to the same cart so the whole power package could be ramped in and out. It could be made rain resistant. I would still consider this if my needs changed.

However I went with a more conventional approach, a combination of conservation and generator recharges. Efficient lighting, using propane alternatives for coffee, cooking, etc. and a 300 watt pure sine inverter for laptop, tv, cell phone recharges and other low watt applications.
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Old 05-13-2010, 12:13 AM   #16
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Be careful - many 12 volt 'appliances' are just plain junk - I'd include most 12 volt coffee makers in that category!

We use to use a small two cup drip 110 VAC coffee maker - using the 2000 Honda genny....BUT we've switched to this:
Aerobie® AeroPress(TM) Coffee & Espresso Maker

Wenot just us a small tea kettle to heat the water and use the Aerobie coffee maker for the BEST tasting coffee you can eve believe! We only use French Roast coffee from fresh ground beans for the freshest flavor...try one, you'll really like it...!

We use a 1500 watt inverter to power our TV, Sat receiver and DVD player, along with cell phone/ipod chargers...then we run the honda for and hour or tow each morning to recharge our (3) GP27 batteries - about 310 Amp Hrs total capacity, using our 45 Amp 3-stage converter/charger...this system works great for us - the main thing to remember is to recharge EVERY day, so you don't run your battery bank down to far!

We used to have a larger inverter in our Lance Camper - I wanted to run the microwave in the evening - but it just didn't work very well - popcorn took at least twice as long to pop, due to the marginal output of the inverter...

These days, we reserve the heavier AC load for those times we can run the Honda genny...

Ray
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Old 05-13-2010, 12:54 AM   #17
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I'll just be blunt - running heat-generating appliances (other than something like a 25W soldering iron) from an Airstream battery bank doesn't make economic sense. Either carry along a 120V generator, or do with out.

- Bart
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Old 05-13-2010, 07:07 AM   #18
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You will be happier using a EU2000i Honda for your 120v needs using the shore power cord. The Honda weighs less than one 12v battery.
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Old 05-13-2010, 07:13 AM   #19
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Quote:
Originally Posted by TouringDan View Post
Jammer- What are L16 batteries?

The more I think about this, I may go ahead and install 6 6v batteries, then I will run 4 gauge copper wire from each pair of batteries to the inverter. This will be good for 210 amps total. I would think that this would work fine for a 2,000 watter inverter.
as i read this i'm thinking of loading ballast into my pickup to plow snow. it will get real old, really fast. try practicing the loading with some cement blocks or similar items. don't forget you'll also need to connect up those cable ends each time. quick connectors would help with that but will also be one more maintenance item. have you considered switching to iced coffee?
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Old 05-13-2010, 07:19 AM   #20
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Quote:
Originally Posted by Mexray View Post


We use to use a small two cup drip 110 VAC coffee maker - using the 2000 Honda genny....BUT we've switched to this:
Aerobie® AeroPress(TM) Coffee & Espresso Maker


Good Morning all!

BE REALLY CAREFUL IF YOU CHECK OUT THE ABOVE COFFEE MAKER.

I WAS DRILLING DOWN FROM "WHERE TO BUY" AND THE LINK TOOK ME A MALWARE SITE - I believe that it was at or below WWW1.TOBESAVED3.NET

Outside of that, it looks like it might make a good cup of cofffee!

Best,

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Old 05-13-2010, 07:29 AM   #21
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i had the same thing happen to me. a moderator should remove that link.
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Old 05-13-2010, 08:27 AM   #22
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Quote:
Originally Posted by Mexray View Post
Be careful - many 12 volt 'appliances' are just plain junk - I'd include most 12 volt coffee makers in that category!

We use to use a small two cup drip 110 VAC coffee maker - using the 2000 Honda genny....BUT we've switched to this:
Aerobie® AeroPress(TM) Coffee & Espresso Maker
Ray
We have been using a French Press coffee maker for 3 years now.( similar to above ) The first one was made of glass and broke, the one we have now is made of stainless steel and built like a vacuum bottle so it stays hot in the cool mountain air.
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Old 05-13-2010, 10:48 AM   #23
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Respect the current!

That is why you don't want high wattage appliance loads at low voltage. It is why you want short leads and large wires to an inverter. It is why you want 12v batteries rather than 6v (in addition to cost considerations).

The losses with current go up with the square of the current. It doesn't take much to where the inverter efficiency and the line losses using low voltage DC circuits balance out, especially if you cut corners on wire size or run length.

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This whole thing is about convenience.
sometimes it is not convenient to learn via experience but sometimes learning by experience is the only way it can happen.
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Old 05-13-2010, 11:15 AM   #24
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Guys

Thanks for all the feedback. All of you have made some very good points.

Maybe making it removable is not necessary and just a plain bad idea. I can just keep my power board in my truck all the time. The volume needed to store it at the front of the bed is about 5 cu. ft. The total truck bed volume under the cap is about 100 cu. ft. (3.1 x 5.0 x 6.5). So I will be only using up 5% of my total truck bed storage capacity. Sure it is expensive. I will probably spend about $2,000 for all the needed stuff- 2000w charger/inverter, cables, fuses, disconnect, remote panel, etc. It should last a long time, depending on how much I use it. I hope to use it a lot! But we all can find ways to justify neat purchases if we want to. I know I can. Like I only paid less than 7K for the trailer and after I install a new fridge and maybe a new a/c that may be needed I still will only have 9K in my Tradewind. Remember my power board can be used for either my Tradewind or my Excella. I like the idea of having that quiet and convennient power available when I need it. I could also mount solar panels on top of my cap so I don't have to mount them on the AS if I decide to go that route. That is an entirely different decision.

Except for the 12v TV, I think that I will stick with 120v ac appliances. I looked at my Krups cp and it draws 850 amps. My mw is an 800watt model but that is the output. The input it requires is 1300 watts. No wonder my Honda 1000 watt generator would not power the mw. Yikes. I need to find one that is no more than 1200 watts, the same as the new 1,200 watt hair dryer that I am going to buy for my wife.

Thanks again.
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Old 05-13-2010, 11:34 AM   #25
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Brianl

My inverter is going to be right next to my battery bank, so as long as I use the correct size wire, I would think that my losses would be minimal.

Dan
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Old 05-13-2010, 01:45 PM   #26
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I checked out the AeroPress Coffee Maker. I think that I am going to have to try this. Now do you have a similar simple $25 item to replace my wife's hair dryer and my microwave. I guess I can use my 1,300 watt in/800 watt out microwave to heat the water (sic). Honestly, thanks for the tip and the link to their site. This item with filters can be ordered thru Amazon for $25.38 and includes free shipping. Wow!

Dan
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Old 05-13-2010, 02:10 PM   #27
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Sorry about the consecutive posts. My P brain is just not very good at multi-tasking.

Barts

We all pay our money and take our choice. Buying an AS and a pickup truck does not make any economic sense either just to go camping. I can have a lot of fun going motorcycle camping with my Triumph Sprint ST and boy is it cheap at 50 mpg and sleeping in a tent. I can't take my wife and dog though, unless I take the car and buy a bigger tent. Then I have to listen to my wife tell me how she hates camping. Oh well.

I hear you Barts and you have a point. Until I build my power board, I may just add a second RV battery and buy a $100 1,250 watt inverter and see how this works. Thanks for your point of view; I have a thick skin.

Dan
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Old 05-13-2010, 07:34 PM   #28
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Why use the inverter to dry your hair?

Have you looked at 12 volt hair dryers?
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