The flashes have been out for decades and for all those years, nimh were not
an option. Obviously, Japan did no testing because the batteries did not
exist. SO it may be a matter of user beware. I doubt they will test the
items, then reprint an owners manual for nimh use for a flash they don't
make anymore, but may be selling out of existing, warehoused inventory.
_________________________________
John Hermanson www.zuiko.com
Camtech, Olympus Sales & Service since 1977
21 South Lane, Huntington NY 11743-4714
631-424-2121 For Free Olympus manuals,
please call 1-800-221-3000
_________________________________
----- Original Message -----
From: "Jim Brokaw" <jbrokaw@xxxxxxxxxxx>
To: <olympus@xxxxxxxxxxxxxxx>
Sent: Wednesday, June 19, 2002 9:30 PM
Subject: Re: [OM] Flash/Batteries questions
> on 6/19/02 8:29 AM, jowilcox at jowilcox@xxxxxxxxxxxxxxxxxxx wrote:
>
> > John, you're scaring me. I don't use my flashes day in and day out, but
I've
> > got NiMH's in ALL of them and love the performance. Am I playing
Russian
> > roulette with my flash equipment?
> >
> > Joel W.
> >
> >> ===== Original Message From "John Hermanson" <omtech@xxxxxxxxx> =====
> >> I tried freshly charged nimh batteries in my T32 and it recharged
after a
> >> full dump in (gulp) less than 6 seconds. Though the T flashes are okay
with
> >> nicads, I don't know if the nimh's will have any ill affects.
> >
> >
>
> Seems like it is a battery performance question. The AA alkaline battery
can
> supply power at a certain rate... this equates to a (for instance) 10
second
> recycle from full dump (of course this fades with battery consumption).
One
> thing NiCd's are known for is being able to supply power at a higher
rate...
> you can 'melt down' a NiCd by dead-shorting it, don't try this at home! So
> the NiCd will put out the needed amount of current to recycle the flash
in,
> say, 6 seconds instead of 10 seconds.
>
> This would only be a bad thing if the circuitry of the flash couldn't
handle
> the increased inflow rate of current. I've no info as to whether NiMH can
> supply current faster, the same, or slower than NiCd, but both are
probably
> faster than alkaline chemistry.
>
> I have not seen any warnings that the T-20 or T-32 should not be used with
> NiCd (or NiMH) batterys, but I *have* seen warnings that the QA-310 should
> NOT be used with NiCd (and presumably) NiMH batterys. I hope that if
Olympus
> thought the circuitry of the T-20 or T-32 would be damaged by a high
current
> inflow rate they would have included warnings. I've used my T-20 and T-32
> with NiMH batterys without problems, but I have not compared the recycle
> time with NiMH to alkaline to see how much current inflow difference there
> is.
>
> I've never heard what the symptoms of a QA-310 that has been used with
NiCd
> batterys and damaged exhibits, but I have a nice clean one that doesn't
> work... in case someone knows, can they point where to start looking for
> burned transistors or fried capacitors...?
> --
>
> Jim Brokaw
> OM-1's, -2's, -4's, (no -3's yet) and no OM-oney...
>
>
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