Originally posted by Cee Cee Thanks for the ref. That's what it says on page 3, which makes it even more of a mystery that the only batteries I have which *don't* show a flashing "depleted" icon in my camera are the used ones, which read around 1.72V open-circuit (and the alkalines, at around 1.55V); the new ones which read around 1.85V OC show "depleted". Of course, that was my original question...
Bottom line, I intend to try the Cr-V3s, which are the Pentax "recommended" type, when they come in. If they don't work, I'll probably kludge up a test circuit to check all of the AA lithiums under load, per Fig 11 on page 11. And at the last, if it still remains a mystery, I might bite the bullet and try Enerloops, since everyone seems to think they're the greatest thing since sliced bread...
---------- Post added 10-18-18 at 10:58 PM ----------
Originally posted by stihlmania My 1stD, 1stDS and 1stDL are all working with rechargeable CRV-3 batteries and they have never been happier. I switched to rechargeable CRV-3's 2 years ago for all the D's. My 1st DS is used weekly with a Sunpak DX 8R ring flash [auto ttl] for product photos and so far I have 150 shots on the the recently installed camera batteries and the meter on the camera still shows full charge. When the meter shows half charge, around 250 shots, I change the batteries. The date and time need to be re-set every battery change but I can live with that. I do have the Pentax AC adaptor [K-AC10U] but hardly ever use it since I purchased the rechargeable CRV-3's...
That's interesting. I used AA lithiums from my first use back in '05 or '06, and I've gotten about 800-1000 shots per set before the icon dropped below "full". I hardly ever use the internal flash, which probably makes a significant difference. I only got this battery problem after I didn't use the camera for about 2 years (health problems), and when I turned it on there was nothing, not even the flashing "battery depleted" icon. The resulting fire drill is described in my first post.