Replies

1. 
   WayneL5 | Apr 14, 2005 04:24am | #1

   It's called an air compressor.  It stores energy in a tank.

1. 
   evwood | Apr 14, 2005 04:55am | #2

   haha. ok i'll try again. im not talking about air tools. battery back up outlet thingie.....anyone else?

   Edited 4/14/2005 7:20 am ET by ev

2. 
   BArnold | Apr 14, 2005 09:22pm | #3

   A generator would be much cheaper.

   What you're describing is a DC to AC inverter system.  You can buy inverters of various sizes for reasonable prices.  By the time you build up a battery system capable of maintaining a charge for an entire day, you will far exceed the cost of a generator.

   Regards,

   Bill Arnold - Custom Woodcrafting
   Click Here if you're interested in a good,inexpensive website host.

   ---

   Food for Thought: The Ark was built by amateurs; the Titanic by professionals.

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   Edited 4/14/2005 5:46 pm ET by BArnold

1. 
   evwood | Apr 14, 2005 11:33pm | #4

   thanks, exactly the info i was looking for!

3. 
   budreaux | Apr 16, 2005 04:21pm | #5

   You can go to http://www.apcc.com to look at several models.  A 2200VA model will run about $250.  The worst thing about these is they are not really portable.  These things are a back breaker at 110lbs.   A person can carry the 2200 but forget doing it much.  Even putting it on a dolly you would still have to get it in a truck.  The run time for a 2200va using 115v equipment is little less than an hour at 600w.  That translates to 5 amps continous draw.  The max is 1600w or 16 amps.  More power equal more weight. 

1. 
   DEpler | Apr 20, 2005 04:09pm | #6

   As a computer professional I'd have to advise you to be careful with using an APC SmartUPS or BackUPS with power tools.

   They are NOT meant for motor-driven devices, mainly electronics. I believe the inrush current from an electric motor could damage one.

   go to http://www.apcc.com and then contact them for details as I'd hate for someone to try to do this and end up burning up what is a not-so-cheap piece of equipment  -- I know because I live in FL where power interruptions are VERY common due to summer thunderstorms, so I have 4 or 5 UPS's in my house.

   Dave

    

1. 
   budreaux | Apr 20, 2005 04:57pm | #7

   I use dozens of the 2200's and alrger and a 16kva APC.  As long as you stay within the specs you can run off of it.  The point is they are so heavy and have a short runtime at load they are not practical for this use.

   Edited 4/20/2005 9:57 am ET by treefreak

4. 
   ian | Apr 26, 2005 04:23am | #8

   Second hand dielsel electric submarine.
   battery pack good for several weeks given your application.

   But you'll need a very big truck to move it arround.

   If it must be electric, investigate a silenced trailer mounted generator.

   On reflection air seems a much better choice.