I'm using a converted ATX power supply as well and it's great, with one
exception. My Orbit Pro charger has a power switch, and when I turn it
on the power supply shuts down. I've never opened it up, but imagine it
might have a largish capacitor that sucks a largish amount of current
when first turned on. Maybe the power supply sees this current and shuts
off to protect itself.
Weird, but my other chargers, including a GP Triton work great on this
power supply.
Dan
David Register wrote:
A newbie here in town borrowed one of my converted PC power supplies
for charging his electric and then started looking for a new PC supply
of his own. He found a really good deal which I've converted and it
works very well. In our area, used PC supplies are getting harder to
find (for free) and it pains me to pay $20 for a used supply.
This conversion is very easy (see Red's Battery Clinic article at
http://www.rcbatteryclinic.com/) and follows the ATX conversion with
the exception that you only need to ground the PS-On wire to make the
supply work properly. No need for the 'Power Good' line. On this one
the PS-On wire was green on the motherboard connector but it's clearly
marked on the circuit board inside the case.
Supply is a 250W unit from Tiger Direct. Cost is $15 +S/H. Add a
couple of bucks and a little sawing on the case to fit a banana plug
receptacle, clip and shield a few wires and you're done. I've been
running this one for a few days on GP, Sirius AstroFlight and FMA
chargers for NICd, NiMH and LiPos (Tx, Rx and motor packs) with no
problems. Haven't pushed current too hard (couple of amps) but the
supply is rated for 10A so it will probably deliver 8 or so.
Just FYI for those looking for an easy way to get 12V bench power for
your field chargers.
- Dave R
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