Search found 2 matches

by FlynJay
Tue Jun 30, 2009 1:54 pm
Forum: Off-Topic
Topic: Making my own portable AC power supply
Replies: 32
Views: 3221

Re: Making my own portable AC power supply

stevie_d_64 wrote:As long as we are talking about generator efficiency and other "emergency" electrical power issues...I want to see what the experts recommendations would be for "our" situation...

After Hurricane Ike, we learned a lesson...18 days without power really stinks...So...

My wife and I are not too picky...We cold have toughed it out the entire time, but it was beginning to wear on us after the first week...

We also do not anticipate running a lot of "things" on whatever power supply we finally get...Here's the short list...

2 fans, at night, to keep the air moving in our bedroom...

1 surge protector/power strip to keep our cell phones charged up (overnight)

And on that power strip, I would still like to be able to run the laptop on power and to keep the batteries on this thing peaked...

As far as house appliances, I do not believe we will ever want to run the fridge (because we cook most everything as quickly as possible, and throw the rest away) I know that sounds bad, but it gives us the chance to clear out "stuff"... :thumbs2: And we'll wash at a laundrymat...

So considering we do not have a great personal need for a lot of power, any recommendation for something that is big enough to bother with, easy to secure to keep it from walking away, and one that maybe on an occasion power a circular saw and power drill, along with the nightly power needs mentioned above...

We want to get something that is rugged, can be rolled on its own base, be fairly quiet...We'd get it...There are just so many out there I'd probably get something stupid... ;-)

When I saw the absolute waste of gas and what the nieghbors spent and powered 24/7/365 during that crisis, I kinda thought it would be smarter to not go that route...

So thats our story, and we're sticking to it...

BTW, the generator a co-worker did let us borrow for the next week and a half was a 2500W output (it had a higher cranking amp output, but I forgot those numbers) 7-8 gallon tank unit...It worked great for being a new unit, and he said we needed it worse than he did...I think that unit was too much, but it seemed to work well for us, and had room to spare for other things...

If there is a high quality unit out ther that meets these requirements in the $400-$600 range...We'll stand by for recommendations...

Much appreciated...
You should really look into the honda line of generators. The 2000W version is very quiet, portable enough to not need wheels, and will meet all your needs perfectly. A friend of mine has one and he brings it for campouts and also on his boat (27' cruizer) to run the microwave. It burns about a gallon of gas for an 8 hour period if run continously.

For hurricane power I see the main need as being running the freezer; During IKE I had a generator powering the freezer for about 1 hr every 4-5 hours, and I was the only one in the neighborhood that had meat after a week without power.
by FlynJay
Tue Jun 30, 2009 9:30 am
Forum: Off-Topic
Topic: Making my own portable AC power supply
Replies: 32
Views: 3221

Re: Making my own portable AC power supply

Your best bet is going to be to get a second heavy duty deep cycle battery, heavy duty alternator for the truck, and a power switching box that isolates the main engine battery (that way you can start the truck when your accessory battery is drained). If you don't want to go with a heavy duty alternator capable of charging both batteries simo, you can get a power managment system that will charge the lowest battery first and then switch to the other battery once the first is charged (very common for cabin cruizer boats).

I would not power DC devices with their AC-DC plug in converters, there is a large amount of energy loss in the conversion; both from DC to AC in the inverter, and AC to DC in the wall warts.

You can go a step further and get a 12V fan for the tent and try to eliminate the DC to AC inverter all together.

Keep everything DC an your battery will last alot longer.

Return to “Making my own portable AC power supply”