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Old Aug 18, 2004, 08:21 PM
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Jeff Meyers's Avatar
Fayetteville, GA
Joined Oct 2000
3,663 Posts
50+ AMP Power Supplies

Hey guys,

One of my club fields has AC Power.....but I'm killing my 25 amp Radio Shack power supply.

When charging two 8S3P packs at 6 amps each....I'm exceeding the current capabilities. I will soon need to charge 10S packs at 6 amps each....plus some smaller packs at the same time...

Anyone have a good suggestion for an easily portable 50 amp power supply? I need something that's less than 10 lbs ....smaller the footprint the better...
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Old Aug 18, 2004, 09:34 PM
RIP Ric
Andy W's Avatar
Marietta, GA
Joined Jun 1999
43,312 Posts
I would suggest two of the 25A units, one per charger. That's what I have (although I rarely push my chargers as hard as you are). It will be FAR cheaper and smaller than a 50A PSU..
..a
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Old Aug 18, 2004, 09:45 PM
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Nebraska
Joined Jul 2003
182 Posts
If money is not an issue, go to www.trcelectronics.com and look at the Cosel 600 (or higher) watt PBA series power supplies. These are small, powerful switching supplies. I use the PBA600F-12 supply to charge 5S3P LiPos with two Astro 109 chargers.

Mike M
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Old Aug 18, 2004, 09:46 PM
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Jeff Meyers's Avatar
Fayetteville, GA
Joined Oct 2000
3,663 Posts
Yeah...that's an option....but not as convenient as carrying one unit to the field with one bus bar...
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Old Aug 18, 2004, 11:31 PM
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Conyers, GA
Joined Nov 2001
204 Posts
Hi Jeff,

I've had some good success using 2 of these pc power supplies http://www.newegg.com/app/ViewProduc...148-007&depa=0
in parallel, they are 34a on the +12 volt side ( 2 in parallel should be good for 68a). I'm just charging 3s3p 6000mah but it kept tripping off my charger and I would have to start my car at the field to charge. Its cheap and light and has its own cooling fan built in.

Mike
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Old Aug 20, 2004, 05:41 PM
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United States, VT, Alburgh
Joined Jan 2004
135 Posts
You can try an IOTA power supply. I have an 55a and a 90a continuous 12 power supply. Great units and very light. You could charge 3 complete ION packs with the 90a unit.

J.L.
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Old Aug 20, 2004, 06:03 PM
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Jeff Meyers's Avatar
Fayetteville, GA
Joined Oct 2000
3,663 Posts
XL...

Got a link?
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Old Aug 21, 2004, 09:11 AM
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USA
Joined Jan 2002
4,787 Posts
Jeff, get a real 13.8V power supply:

www.astroncorp.com
or
www.ict-power.com
or
http://www.mfjenterprises.com/index.php

Are you looking for a switcher or linear supply? If you can deal with the weight of linear supply look no further than Astron. The Astron will last a lifetime.
Here are some reviews the eHam.com

http://www.eham.net/reviews/products...7a2f4e7f53128c
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Old Aug 21, 2004, 09:16 AM
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Haldor's Avatar
Stavanger, Norway
Joined Feb 2000
7,999 Posts
Search google for MAAS/Manson SPS9600 (60A unit)
Lightweight (5.8kg/14pounds)

I got its littlebrother SPS9400 (variable 3..15V/stabilized 13.8V/40A max) which can be had for 160-200Euro.
Weight is 7pounds.
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