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Electric Stunt => Gettin all AMP'ed up! => Topic started by: Bill Mohrbacher on August 21, 2009, 08:48:21 AM

Title: Field Charger power supply
Post by: Bill Mohrbacher on August 21, 2009, 08:48:21 AM: I was browsing Harbor Freight yesterday and found a dandy little 800 watt generator (item 66619) for $109.99. It puts out only 120 VAC, no 12VDC. It is very compact, weighs 40#. I was going to buy a deep cycle battery. They cost $67 in my area and a good charger for it is another $50, so this little generator seems a good deal to me. I'm using a 5S2P 2300 mAH A123 battery in my RC Focke Wulf and don't want to charge it from my car battery.

I already have a good 120VAC-12 VDC power supply (an IBM hot swappable server PS 12VDC @ 37 amps) I use to power my FMA Cellpro charger so I can just plug it into the generator.
Title: Re: Field Charger power supply
Post by: Dennis Adamisin on August 21, 2009, 01:43:39 PM: Now THAT sounds like a good deal Have you got it and tried it out yet?
Title: Re: Field Charger power supply
Post by: Bill Mohrbacher on August 21, 2009, 07:11:15 PM: I just fired it up this afternoon. I used my IBM 120VAC power supply to run my FMA Cellpro 10 to charge my 5S2P at 10 A. The generator powered the IBM just fine. I didn't monitor the 120, but the IBM was able to supply 12.3 VDC @ 25 amps to the Cellpro (25 A is the max input current the Cellpro will draw).

Also, it starts right up. I'll be using it at a Warbirds flyin tomorrow near Youngstown, so I'll give it moreof a workout. I'm happy.
Title: Re: Field Charger power supply
Post by: Richard Grogan on August 21, 2009, 08:26:26 PM: How loud is it? Is it going to drive the other pilots batty? Pretty cool idea if you can get away with it!
Title: Re: Field Charger power supply
Post by: Dennis Adamisin on August 21, 2009, 08:45:19 PM: RG:
I think if ya mix just a touch of castor with the gas, it will help PACIFY the on electric contingent! #^
Title: Re: Field Charger power supply
Post by: Crist Rigotti on August 21, 2009, 09:42:36 PM: Quote from: Dennis Adamisin on August 21, 2009, 08:45:19 PM
RG:
I think if ya mix just a touch of castor with the gas, it will help PACIFY the on electric contingent! #^

Now that's funny!
Title: Re: Field Charger power supply
Post by: Alan Hahn on August 22, 2009, 08:52:49 AM: Quote from: Dennis Adamisin on August 21, 2009, 08:45:19 PM
RG:
I think if ya mix just a touch of castor with the gas, it will help PACIFY the on electric contingent! #^

Well I'd put it next to Russ and crank it up during my flight!
Title: Re: Field Charger power supply
Post by: Bill Mohrbacher on August 22, 2009, 03:41:57 PM: At an electric meet it may be loud. At a glow meet--YOU GOT TO BE KIDDING!!

Seriously, it is quite quiet. Way quieter than weedwackers, leaf blowers, etc.
Title: Re: Field Charger power supply
Post by: Dean Pappas on August 23, 2009, 03:03:22 PM: The gold standard for quiet in this size would be a Honda 1000W generator. Can you compare the sound level to one of those?
Dean P.
Title: Re: Field Charger power supply
Post by: Igor Burger on August 23, 2009, 03:43:52 PM: http://www.thunder-sky.com/products_en.asp?fid=66&fid2=82 H^^