Allen,
The battery life depends to a great extent on a variety of factors.
Here is a quote from Sound Devices' FAQ
http://www.sounddevices.com/tech/7-faq.htm
> Runtime tests are still being performed and we haven't yet figured out
> what "typical" usage means, but fully loaded usage at the highest bit
> rate with four inputs, outputting timecode, writing to a 4200 rpm HD
> is less than 1 A (@ 7.2 V). This means that the included 1500 mAh
> on-board battery can deliver at least 1.5 hours and the large 5000 mAH
> Sony batteries will perform quite well. Don't forget that the unit can
> easily be powered by typical bag power solutions.
Of course, you can increase battery life by using fewer inputs,
recording only to CF, turning the displays down (or off), and using
lower sampling rates or bit depth. I haven't seen any specific data on
the maximum achievable, and my own usage has never taken me anywhere
near the limit. [But I can easily fill a 1GB CF before I worry about
power.]
Ed
On Sep 17, 2005, at 11:25 PM, Allen Cobb wrote:
> Can anyone give me a rough recording-time for the Li-Ion battery
> in the Sound Devices 722 digital recorder, recording to hard
> disk (and also to CF card)?
>
> Thanks -- This will be much appreciated.
>
>
>
> Allen Cobb
>
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> "Microphones are not ears,
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> Klas Strandberg
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