My 17 AH battery seems to do fine. It easily runs all 4 lights (AB800)
but I normally only use two outdoors. My inverter is a 300 watt but
recall that it's a "true sine wave" model. That's a requirement for
Alien Bee lights and I suspect many others. But apparently all true
sine waves aren't so true. The first brand I tried (I don't recall the
name) didn't work at all. The flashes just sat there like bumps on a
log. No charging, no flash. Then I carefully examined the photos of
the Alien Bee unit and scanned a lot of ads until I found one that
looked almost identical and with identical specs. The maker was "Samlex
America". That one works like a charm and looks like these
<http://www.samlexamerica.com/products/subcategory.asp?CategoryID=7&title=Pure%20Sine%20Wave%20Inverters%20Light%20Duty%20Commercial>
I think the PST-15S-12A 150 Watt is the one used by Alien Bees. Mine is
the PST-30S-12A 300 Watt. As I said before I think I'd buy the 150 if I
were to do it again.
Chuck Norcutt
Ken Norton wrote:
> This discussion of DC battery with AC converter to power AC-powered studio
> lights has me thinking. (dangerous)
>
> I bought that deep cycle marine battery and converter to power Karen's
> computer while camping. I'm contemplating it's ability to power two or
> three strobes. At 125-ish aH, I can't imagine that the battery would be the
> weak spot, but I got a 400watt converter.
>
> I like Chuck's backpack, but I doubt that it would work for a wet battery.
> (I have it in a protective battery box).
>
> AG
--
_________________________________________________________________
Options: http://lists.thomasclausen.net/mailman/listinfo/olympus
Archives: http://lists.thomasclausen.net/mailman/private/olympus/
Themed Olympus Photo Exhibition: http://www.tope.nl/
|