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Gear / Technical Help => Battery Boxes, Preamps, Mixers, ADCs, and Processors => Topic started by: utahtaper on October 04, 2003, 12:48:43 PM

Title: UA-5 Run Times on 9.6 R/C battery
Post by: utahtaper on October 04, 2003, 12:48:43 PM: What is the run time for one of these? Rat Shack has the 1600ma batteries and I'm going to build one. Should I pick up two?
Title: Re:UA-5 Run Times on 9.6 R/C battery
Post by: DaryanLenz on October 04, 2003, 01:22:43 PM: Yes, get two. I think about 4-6 hours of run time on each. You can get them much cheaper off of ebay if you are willing to wait...high capacity batteries as well!

Daryan
Title: Re:UA-5 Run Times on 9.6 R/C battery
Post by: Kindguy on October 04, 2003, 01:54:01 PM: This battery rules the UA-5

http://www.batteryspace.com/product.asp?3=209
Title: Re:UA-5 Run Times on 9.6 R/C battery
Post by: utahtaper on October 04, 2003, 03:12:05 PM: Can you get away with one 3000 mah? I only need a battery to last 3 hrs.
Title: Re:UA-5 Run Times on 9.6 R/C battery
Post by: Kindguy on October 04, 2003, 03:18:53 PM: From my testing at the house that battery lasts over 7 hours. anything over 7 would be pushing it though.
Title: Re:UA-5 Run Times on 9.6 R/C battery
Post by: caymanreview on October 04, 2003, 06:30:06 PM: i believe the ua5 draws 450 ma / hour, so just take the size of the battery divided by that
Title: Re:UA-5 Run Times on 9.6 R/C battery
Post by: mirth on October 04, 2003, 11:12:04 PM: Ya, the 3000mAh will last you about 6.5 hours with phantom on. Using that math, the 1600mAh Rat Shack batts will get you 3+/ea.
Title: Re:UA-5 Run Times on 9.6 R/C battery
Post by: Nick in Edinboro on October 05, 2003, 01:18:26 AM: I have that Rat Shack 1600mah battery, never had it die on me yet (until the next time I tape now that I said that).. Have recorded 3.5+ hours with it, haven't really pushed it though--never had a chance just yet.
Title: Re:UA-5 Run Times on 9.6 R/C battery
Post by: dklein on October 05, 2003, 03:15:35 PM: Go for the NiMh battery (battery space or other) instead of the NiCad (rat shack). They're the same size and roughly the same weight but the NiMh lasts twice as long. You never know...like the other night when I had a 2 show conflict...and fortunately the 1st one ended before the 2nd one started. Off I went with lotsa battery left!

p.s. when you're doing the math you don't get all the capacity. And when I measured current consumption on the UA-5, I never measured over 400mA even with phantom on.

Conditions    Battery (mA)    AC (mA)
phantom off    260    280
phantom on, no mics attached    290    320
phantom on, Rode NT-4 attached 360    390

and add 20mA for headphone monitoring if you use it.
Title: Re:UA-5 Run Times on 9.6 R/C battery
Post by: Nick in Edinboro on October 05, 2003, 08:29:42 PM: Oh forgot to mention, I was using the NiMH RatShack 1600mah version.. the one that has the little "race flag" on the battery..
Title: Re:UA-5 Run Times on 9.6 R/C battery
Post by: mirth on October 10, 2003, 02:40:27 PM: Quote from: dklein on October 05, 2003, 03:15:35 PM
Conditions Battery (mA) AC (mA)
phantom on, Rode NT-4 attached 360 390

So, one could expect to get 9+ hours out of the NIMH 3600mAh battery pack with a 48V phantom draw. Way cool!
Title: Re:UA-5 Run Times on 9.6 R/C battery
Post by: dklein on October 10, 2003, 03:37:01 PM: to be safe, I wouldn't count on getting more than 85% of the rated capacity...also different mics draw different currents on phantom. I don't know if my mic is high or low. But 7 hours is definitely safe
Title: Re:UA-5 Run Times on 9.6 R/C battery
Post by: phishn on October 21, 2003, 08:38:48 PM: here's a nice battery and charger. +T to BCostigan for showing me this one...

http://www.batteryspace.com/product.asp?3=209