do you know of any portable chargers that would be appropriate for
field use, iE: 4 channel charger and lightweight?
The reason I'm looking into this is because of TSA, i just can't risk
the chance of having a weeks battery life confiscated from me..
Martyn
On Oct 17, 2008, at 12:18 PM, wtefftus wrote:
> Dear Martyn,
>
> I had the same question a while back and did a little analysis. The
> advantage of the NP-type batteries are that they, and their ancillary
> charging apparatus, are commonly found on-set, and around the world
> (at least in commercial production scenarios). They are also somewhat
> more robust.
>
> However, I couldn't find any substantial advantage relative to NP-
> type battery power vs. the L and M type batteries. In fact, the
> largest L and M-type batteries seem to have a higher MAh rating than
> the highest lithium chemistry NP-type, at least when using SD
> recorders.
>
> TSA and commercial aviation have put limits on the amount of lithium
> in lithium chemistry batteries one can check or carry-on. While all
> currently made lithium NP-type batteries are well below that limit,
> the NiMH NP-type may offer a way around that issue.
>
> Still, one would have to carry an ancillary charging station/power
> supply, etc., which may be an advantage if multiple batteries are to
> be re-charged.
>
> Hope this helps.
>
> Regards,
> Bill
>
> --- In Martyn Stewart <>
> wrote:
> >
> > I'm looking for information on NP-type batteries. Who in the filed
> > uses these? Is there an advantage using these batteries as apposed
> to
> > the sony L or M mount that are used in the Sound devices
> recorders?
> > (longer life)?
> > Sound devices sells the XL-NPH adaptor for NP-type batteries, in
> your
> > opinion would you carry a bunch of Sony L-mount batteries of a
> bunch
> > of NP-type batteries?
> >
> > http://www.sounddevices.com/products/xlnphmaster.htm
> >
> >
> > Martyn
> > *************************************
> > Martyn Stewart
> > http://www.naturesound.org
> >
> > Redmond WA
> > 425-898-0462
> >
> > 47.65420118705451
> > -121.98158740997314
> >
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> >
> >
> >
> >
>
>
>
Martyn
Martyn Stewart
*****************************
Make every garden a wildlife habitat
http://www.naturesound.org
Redmond, WA
425-898-0462
******************************
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