I have the powerpak III that Pentax sells using 'C' batteries. It seems to work about as well as my Quantum Battery 2 packs that I used with my metz and Pentax potato masher units. Recycle times are fairly close. I found one minor advantage with the Pentax unit in that when you have to do long sets of pics, you can install another set of batteries when yours run out. Of course, the downside is that you have to buy them each time.
I haven't yet seen any commercial pack for the 540 other than the Pentax one. -- Best regards, Bruce Saturday, March 13, 2010, 4:31:53 PM, you wrote: 2cn> Has anyone made a external pack for this flash or know of 2cn> something besides the c powered pack that Pentax sells / Thanks -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.

