John Sessoms wrote on Tue, 10 Nov 2009 06:10:41 -0800
Thought I'd open this in a fresh thread specifically about batteries for earlier Pentax DSLRs. I got an idea from the discussion of NiMH and Lithium AA batteries in the other thread, and wanted to follow up on it. There are no Lithium Ion AA batteries, but the *ist-D can also use CR-V3 batteries and those ARE available as Litium Ion rechargeables. Plus, they're 3V(+) rather than the 2.5V(-) you get with a pair of NiMH AAs. Has anyone used these? The only drawback I foresee is there doesn't seem to be a charger that can do 2 of these at once. Even better would be a charger that could do 4 at once, since the *ist-D/BG-1 takes 4 of them is you load it with CR-V3s.
John, I've used several sets of Delkin rechargeable CR-3Vs in my *ist- D and grip with no problems other than a relatively low number of shots per charge (150-250). I found the focusing to be snappier than with NiMH rechargeables. When the alarms went out about excessive voltage I measured mine and found them to run about 3.5 volts, higher than the Pentax spec for the *ist-D, but as I said, I had no problems. Battery reliability was not great - several batteries failed over the years.
I no longer use my *ist-D regularly so I've changed to the non- rechargeable CR-V3 batteries, which seem to have a very long shelf life.
Regards, Jim -- 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.
