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Gear / Technical Help => Remote Power => Topic started by: AT853rxwh on May 24, 2004, 09:53:37 PM

Title: UA-5 and 7.2v Battery
Post by: AT853rxwh on May 24, 2004, 09:53:37 PM
Think it was Fozzy that was running it, but I remember reading that the regulator in the UA-5 took 8v-38v?  

Anyone else running 7.2v batt on their ua-5?  
Title: Re:UA-5 and 7.2v Battery
Post by: sexymexi on May 24, 2004, 10:02:24 PM
i've only run 9-12v to the ua-5.  i don't think it would work off 7.2, i could leave my battery on, and see how low it goes checking the voltage.  if i have time i'll do that tomarrow. peace.
Title: Re:UA-5 and 7.2v Battery
Post by: Mojowill on May 25, 2004, 12:26:17 AM
I believe there is a thread in the archive that explains the voltage re(8-12 i think).  I run on 9.6 cause that was what was reccomended and readily available.  The current draw with phantom power is 450 mA.  
Title: Re:UA-5 and 7.2v Battery
Post by: ChrisV on May 25, 2004, 01:50:54 AM
It may work for a little bit since a fully charged 7.2V would be over 8V...but as it starts to discharge not sure if it would work once it gets under the 8V mark.
Title: Re:UA-5 and 7.2v Battery
Post by: AT853rxwh on May 25, 2004, 06:05:58 PM
Found the thread, it was hiding in the 12v ua5 thread


http://www.taperssection.com/yabbse/index.php?board=25;action=display;threadid=18442 (http://www.taperssection.com/yabbse/index.php?board=25;action=display;threadid=18442)

So the big question is does the phantom work at 7.2v?

I would think that running it at the lower voltage would be better as the regulator wouldn't have to generate any heat regulating the voltage down...

Title: Re:UA-5 and 7.2v Battery
Post by: fozzy on May 25, 2004, 07:55:13 PM
Just saw this but yea i was running mc012's > UA5 > jb3.  Should have my 481's in a few days so i will be doing some more testing.

Phantom power is on.  i can run up to 3 7.2v packs at a time with my current power cable hack and hot swap them at will.  I have 4 new 3400mAH packs and 3 1500 packs that are thrashed.  I have got 6+ on the old packs and 20+ on 3 of the new packs.   I also use Dean's plugs instead of the standard RC pack plugs.

I also have a 4pin cable for any situation that requires a SLA that i have never used in the field.

 let me know if you want some better pics

(http://img25.photobucket.com/albums/v75/fozzy-/UA5-open.jpg)
Title: Re:UA-5 and 7.2v Battery
Post by: AT853rxwh on May 25, 2004, 08:58:30 PM
+t Fozz!  Thanks for the info!

What meter is that btw?
Title: Re:UA-5 and 7.2v Battery
Post by: fozzy on May 25, 2004, 10:42:44 PM
monitor is a SVU-1 running line out on the UA-5.  Right angle mini optical on the left.  Y cables splitting the Line out cable to an additional set of RCA's outs for patchers.  
Title: Re:UA-5 and 7.2v Battery
Post by: mirth on May 26, 2004, 11:40:47 PM
Team SVU-x all the way, baby!
Title: Re:UA-5 and 7.2v Battery
Post by: fozzy on May 27, 2004, 10:06:55 PM
4hrs and going w/ the 481's on a single 3200mah 7.2v.  I am concluding that 7.2v works w/ my new config as well.  

Title: Re:UA-5 and 7.2v Battery
Post by: Kindguy on June 05, 2004, 12:39:32 AM
T+ fozzy I like that notebook setup.
Title: Re:UA-5 and 7.2v Battery
Post by: fozzy on June 05, 2004, 11:54:11 AM
T+ fozzy I like that notebook setup.

Works great in my backpack w/ a laptop pouch.  I stole the idea from someone here
Title: Re: UA-5 and 7.2v Battery
Post by: aberg on July 29, 2004, 08:51:01 PM
I'm running a test now on a 1500mah 7.2v RC batt I had lying around... I wanna be able to power the UA-5 for single band nights with something more portable than a 12v.... we'll see how long that can last... 1 hour so far with no problems and the optical is still powered and workin' fine.
Title: Re: UA-5 and 7.2v Battery
Post by: fozzy on July 29, 2004, 09:34:23 PM
I think i was getting b/w 1-2 hrs on an old and busted 1500, ~6 on the three pictured above.  I now run 4 3400 or 3200 ( i forget) 7.2 volt batts.  FWIW the batteries have always been peak charged. 
Title: Re: UA-5 and 7.2v Battery
Post by: aberg on July 29, 2004, 11:49:02 PM
Yup, it stopped at about 75 mins.... that's no good. I'll try charging for twice the amount of time.. I don't really care if I fuck up the battery.. it's old news.
Title: Re: UA-5 and 7.2v Battery
Post by: mirth on July 29, 2004, 11:51:27 PM
Why not just get a 3mAh 9.6v RC? It'll last you 5 1/2 hours of solid taping time w/phantom...
Title: Re: UA-5 and 7.2v Battery
Post by: aberg on July 30, 2004, 12:04:49 AM
Yeah, I'm considering that... but it would mean buying a new charger... I don't really trust my current charger which just has an egg timer deal on it.... it's not a peak charger or anything.