Hi all,
I'm willing to use an external battery to power either a recorder (5V
USB) or a microPc (12V) for unattended recordings. As soon as I find the
right battery pack I'll try to test if simultaneous recharging with a solar
panel is a viable solution or not. Some battery packs allow the
simultaneous operation. e.g.
http://www.goalzero.com/p/211/sherpa-100-solar-kit
however I'd prefer to assemble something cheaper.
Gianni
2014-02-17 22:29 GMT+01:00 Peter Shute <>:
>
>
> I was assuming, possibly wrongly, that the OP's requirement was for long
> unattended recordings, so I was wondering how difficult it is to automate
> the simultaneous charging while recording. Can you just feed the solar
> power into the battery while recording, in order to reduce the discharge
> rate, or do you have to have a pair of batteries as you describe, that
> automatically swap when one is charged?
>
>
> Peter Shute
>
> > -----Original Message-----
> > From:
> > On Behalf Of
> >
> > Sent: Tuesday, 18 February 2014 6:10 AM
> > To:
> > Subject: RE: [Nature Recordists] battery packs
> >
> >
> >
> > Peter,
> > You can charge a small battery at the same time. You have two options:
> > Take two batteryes, and one is charging in the panel and the
> > other is in the record or other stuff, you must have at least
> > two batteryes one can faill.
> > Take one battery and during the use you can charge this
> > battery with the balance port and other main cable.
> > The problem is, the panel is encombrant and a 30w panel in
> > 12v makes 0,8Ah 60x40 cm or a foldable pannel and with 30w
> > the charge is slow..
> > The best way is have a panel in the car, two packs and when
> > one is charging the other is working. Or take a foldable
> > pannel with you to the place and charge during the recording session.
> > Jos=C3=A9
>
>
>
--
Centro Interdisciplinare di Bioacustica e Ricerche Ambientali
Universit=C3=A0 degli Studi di Pavia
Via Taramelli 24, 27100 Pavia, Italy
http://www.unipv.it/cibra
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"While a picture is worth a thousand words, a
sound is worth a thousand pictures." R. Murray Schafer via Bernie Krause.
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