[snip ongoing discussion of batteries]
One reason to use NiCd batteries in your flash units is a faster recycle
time. Even though NiCd batteries have a lower voltage than alkalines, they
are able to deliver much more current. (ever wonder why NiCd batteries get
warm?)
In my Vivitar flash, freshly recharged NiCd batteries will give me a
0%
charge in 4-5 seconds, wheras fresh alkalines will do it
in 9-10
seconds. I used to have (until stolen) a Vivitar NiCd external battery
pack that would recharge the flash in less than a second (full power).
They didn't recommend doing a sequence more than 20 flashes though as
things got pretty toasty. They discontinued the unit after only a couple
years as too many Vivitar 283/285 flashes were fried before warrenty ran
out. I know a couple photojournalists who still use the old Vivitar units
though as mated with the 283 on 1/4 power it is the only flash that can
deliver a 36 exposure roll at up to 5 frames per second.
Ken (would you like sunscreen with that flash,sir?) Norton
Kenneth E. Norton
Image66 Photography, Broadcast Consulting and Audio Engineering
image66@xxxxxxx
(515) 791-2306
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