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Author Topic: Ua5 How long will my battery last??  (Read 1765 times)

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Offline hoobash

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Ua5 How long will my battery last??
« on: July 23, 2004, 12:24:37 AM »
I have run my ua5 that much and dont know the run times. The ua-5 is 450ah. I have a 9.6v 3000mah and 1600mah so this the correct math??

3000/450=6.6 hours
1600/450=3.5 hours

I know they wont run for the full amount of time. I am not using phantom power

Offline caymanreview

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Re: Ua5 How long will my battery last??
« Reply #1 on: July 23, 2004, 01:23:15 AM »
usually take the capacity/ draw *.8

Offline bhtoque

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Re: Ua5 How long will my battery last??
« Reply #2 on: July 23, 2004, 02:45:40 AM »
The deneke ps-2 phantom box pulls 280, so just to be safe say the ua-5 w/o phantom on is only pulling 250, with .8 (can't drain 100%) factored in. that gives you 5 hours on a 1600mha

I've never run longer than 4.5 without switching, but it's a safe bet.

Can any of the electronically inclined tell us how to measure the actual amp draw of the ua-5 w/o phantom on?

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Offline leegeddy

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Re: Ua5 How long will my battery last??
« Reply #3 on: July 23, 2004, 03:58:23 AM »
The deneke ps-2 phantom box pulls 280, so just to be safe say the ua-5 w/o phantom on is only pulling 250, with .8 (can't drain 100%) factored in. that gives you 5 hours on a 1600mha

I've never run longer than 4.5 without switching, but it's a safe bet.

Can any of the electronically inclined tell us how to measure the actual amp draw of the ua-5 w/o phantom on?

JAson

place a multimeter in SERIES in (+) side of the power supply and measure the current (amperes).

for example:

[ battery  ] (+) _________ MULTIMETER ________________ [ua5]
(-)|__________________________________________________|
 
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Offline bhtoque

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Re: Ua5 How long will my battery last??
« Reply #4 on: July 23, 2004, 11:03:40 AM »
The deneke ps-2 phantom box pulls 280, so just to be safe say the ua-5 w/o phantom on is only pulling 250, with .8 (can't drain 100%) factored in. that gives you 5 hours on a 1600mha

I've never run longer than 4.5 without switching, but it's a safe bet.

Can any of the electronically inclined tell us how to measure the actual amp draw of the ua-5 w/o phantom on?

JAson

place a multimeter in SERIES in (+) side of the power supply and measure the current (amperes).

for example:

[ battery  ] (+) _________ MULTIMETER ________________ [ua5]
(-)|__________________________________________________|
 


Ah, thanks.

I'll have to try that on saturday, since I have to go right from work to a show again tonight (bad plus this time)

I'll post results asap

JAson
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Offline hoobash

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Re: Ua5 How long will my battery last??
« Reply #5 on: July 23, 2004, 02:25:31 PM »
So you get 4.5 hours on 1600ma?? That means I should easly get 8-9 hours on the 3000ma

The deneke ps-2 phantom box pulls 280, so just to be safe say the ua-5 w/o phantom on is only pulling 250, with .8 (can't drain 100%) factored in. that gives you 5 hours on a 1600mha

I've never run longer than 4.5 without switching, but it's a safe bet.

Can any of the electronically inclined tell us how to measure the actual amp draw of the ua-5 w/o phantom on?

JAson

Offline BCostigan

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Re: Ua5 How long will my battery last??
« Reply #6 on: July 23, 2004, 05:51:30 PM »
The deneke ps-2 phantom box pulls 280, so just to be safe say the ua-5 w/o phantom on is only pulling 250, with .8 (can't drain 100%) factored in. that gives you 5 hours on a 1600mha

I've never run longer than 4.5 without switching, but it's a safe bet.

Can any of the electronically inclined tell us how to measure the actual amp draw of the ua-5 w/o phantom on?

JAson

Just reread some of what ya wrote....not sure I'd assume it's using the same amount as the ps-2......I just seem to remember phantom being used doesn't add much draw as 200+mAh.


I am probably wrong though.
« Last Edit: July 23, 2004, 05:55:11 PM by BCostigan »
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Offline bhtoque

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Re: Ua5 How long will my battery last??
« Reply #7 on: July 24, 2004, 02:29:47 AM »
Sorry gang,

My multi-meter is not multi enough. Does not measure amperage.

And I thought I was cool because I had a fancy digital multi-meter. :-[

JAson
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AKG 391/92/93>MK 90/3 actives
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Offline dklein

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Re: Ua5 How long will my battery last??
« Reply #8 on: July 26, 2004, 01:33:05 AM »
I measured this a year or so ago.  The 2 numbers were measured from battery and ac sources respectively.  I don't know why they were different but they were.

phantom off   260, 280
phantom on, mics attached   360, 390

add 20mA if driving headphones
KM 184 > V2 > R4
older recording gear: UA-5  / emagic A62 / laptop / JB3 / CSB / AD20 / Sharp MT-90 / Sony MDS-JE510
Playback: Pioneer DV-578 > Lucid DA 9624 >many funny little british boxes > Linn Isobarik PMS

 

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