Rob Danielson wrote:
> Hi Zach--
> Right, 2-A's can go pretty fast. Maybe a little cheaper solution is
> to use the NIMH D cells by energizer or ray-o-vac. They are very
> light weight, recharge many times and the manuf charger runs about
> $25. I use a 5 D battery sled to power a DAT recorder, phantom mics
> and the Mp2. Depending on monitoring volume and operating temperature
> the package often goes 6 hours in the field. Easy to carry along 5
> more D's.
> Rob D.
I'm not sure what cap the energizer or ray-o-vac NIMH are, but NIMH D's
are up to 8000 mAh and I've even seen a few 10,000 mAh ones.
It all boils down to a compromise between bulk and weight vs capacity. I
also saw a 12 volt 1200 mAh battery pac recently that was supposedly
made out of NIMH AA's. If the MP2 is drawing 50 mA, that's good for 20
hours or so.
I don't think using two AA alkalines is really very good, the energy
density of newer NIMH is much higher. You can get fairly usable time out
of two AA NIMH if you use the high capacity ones. That saves not only
bulk, but they go internal. And a replacement set is very small and light.
In my case I'm carrying a bunch of the NIMH AA's as my headlamps and the
Portadisc also use them. So, if I can, using AA's makes a lot of sense.
No matter what size, rechargables win over disposables, not just in
capacity, but in cost. I hate to think how many disposables I'd have
used in the last few years.
As Sound Devices point out, the actual time you get can be quite
variable. The primary components being the phantom power draw,
monitoring led setting, and headphone volume. So each person is going to
do a little different.
Walt
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>From Tue Mar 8 18:23:03 2005
Message: 3
Date: Tue, 10 Dec 2002 08:19:50 +1000
From: Syd Curtis <>
Subject: Re: oh-my-gosh!
Hi Marty,
Thanks for snake yarn: seeing is believing. And no, I for one
here in Oz, hadn't heard of the event.
Poor critter was just looking for some warmth and no doubt thought it had
found an ideal home, warm, dark and secluded. Didn't know about 240 V. But
they usually inhabit the environs of swamps. One wonders why this one
invaded human premises.
In case any American colleague is interested, it is a Red-bellied Black
Snake (Pseudechis porphyriacus). The Australian Encylopaedia (Angus &
Robertson) says the species grows to 7 feet in length. This was a young
one. Still dangerous though.
Some 50 years plus ago, an Uncle of mine lost several dairy cows. Dead,
with no apparent injury. No vet in the district to consult. Then he found
and killed a six-foot black snake that was sunning itself on the track the
cows used to get to a little swamp for water. No more cows died.
But let me reassure any prospective travellers to Oz: deaths from snake
bite in Australia are very rare indeed.
Syd Curtis (in Brisbane)
> From: Marty Michener <>
> Reply-To:
> Date: Mon, 09 Dec 2002 14:35:54 -0500
> To:
> Subject: [Nature Recordists] oh-my-gosh!
>
> HI
>
> You subjects of OZ may already have seen this, but I just had to post this:
> Subject: Strange noises from Power Supply
>
> This is one of those almost unbelievable stories from Tech Support. See
> URL below:
>
> http://www.uq.edu.au/education/extra/all.html
>
> Yanks: Don't bother to try to figure out the species, it is from Brisbane, AU.
>
>
> Saludos,
>
> Marty Michener
> MIST Software Associates
> PO Box 269, Hollis, NH 03049
>
>
> EnjoyBirds.com - Software that migrates with you. Now XP compatible.
>
>
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