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Author Topic: homebrew dual voltage battery for short money  (Read 1713 times)

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Offline Nick's Picks

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homebrew dual voltage battery for short money
« on: April 21, 2006, 11:58:32 AM »
thought this might come in handy for someone on the board.

I run a UA5 (9v-12v) and a MicroCraper (5v USB) and didn't want to drop more money on yet another battery.
so..
I took my PR2E battery and hacked its cable.  I wired up a seperate cable to it (spliting it off to two leads from the battery).  One lead has a radio shack 7805 Voltage regulator inline.  its dropping the 11v out of the PR2E down to 4.9v-ish.  Powers up the MT just fine though.  I'll be testing it to make sure it is not the cause of random shutoffs and whatnot.  I had the battery to begin with, but the VR piece was a buck fifty.  I hope it all works.
Yes, I'll be putting a fuse inline to the MT.
:)
www.nickspicks.com/images/battery

Offline bluegrass_brad

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Re: homebrew dual voltage battery for short money
« Reply #1 on: April 21, 2006, 12:02:33 PM »
you may want to attach that VR to something that will act as a heat sink. Those little guys can get hot as hell.
CK1x, CK2x, CK3x > Hub Industry Cables > Naiant PFA or MK46 > 460B
CK1, CK8, CK63 > 460b

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Offline Nick's Picks

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Re: homebrew dual voltage battery for short money
« Reply #2 on: April 21, 2006, 02:35:02 PM »
in the works...

 

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