K-r and Energizer lithium AA batteries
I'm assuming that there won't be any appreciable difference in the operating characteristics power wise from a K-x to a K-r. Interestingly the Pentax D-Li109 that's in the K-50 and others is rated at 7.4v so for those classes of entry level cameras I should imagine this is at the top end of operating voltage.
I vaguely recollect this cropping up with other people a few years back but can't remember the outcome...sorry I can't be more help.
Karlo
Thanks Jak, the D-L109 works fine but I like using AA's and keep the D-L109 as a back up
Bob
Kind regards, Bob
1. Lithium
2. Ni-MH
3. Alkaline
Also, are you on the current firmware v1.15 ?
Another thing to try is to completely run the batteries down and do a fresh recharge of them. The battery chemicals state of health might not be too good.
On the other points you mention, I had discounted the 'alkaline' option and the firmware is up to date. These lithium batteries are not rechargeable or that could have been an option.
Thanks again for your help. Kind regards, Bob
Probably worth investing in another set of rechargeable AA. Nowadays most of them for sale are the Ready To Use (RTU) low drain variety. A set of 4 decent branded 2400-2600mAh shouldn't cost you more than £2-£3 more than you are likely to have paid for the Lithium AA and should have a useful life of 3-4 years minimum.
Karlo
My old K-x (bought from SRS in 2010) was notoriously bad at reporting 'dead battery', though the firmware upgrade helped. I thought that the K-r was better in that respect.
I have used eneloops and lithium cells in the K-x. Lithiums are expensive and not rechargeable, but they do have the advantage of holding their power during weeks of inactivity, whereas NiMH rechargeables do lose power if they are just sitting in the camera for a while. It just depends on your level of regular activity. If you use the camera frequently, then NiMH such as the newer eneloop 3UTGB (1900 mA.h) are likely to be the most economical if you charge them with an 'intelligent' charger. They do eventually lose ability to take and hold a good charge. The old 3UTGA eneloops that I bought seven years ago are no longer fit to use in the K-x (which doesn't get much use these days anyway!).
Martin
Lizars 1910 "Challenge" quarter-plate camera; and some more recent stuff.
Lidyl Tronic Energy 2300 looked good a few years ago, but the last one's I bought won't last longer than 1200 mAh so I won't buy them again.
My first digital was a Nikon 600 in 1999 and Panasonics were the only batteries that lasted any length. Great batteries (no longer made) and still going strong after 1000's of uses.
--
Pentax K-1 + K-5 and some other stuff
Algi
Karlo, the date on them is 12-2030, so they should have been good but were made in Singapore!!
Martin, the retailer will give me a refund. They need to check out their stock in case it is a dud batch. Your experience with the K-x is interesting. When using Eneloops the red battery indicator would show empty but I could go on taking shots for quite some time. Both you and Algi have referred to using an intelligent or suitable charger. I have to admit that when I started using Eneloops I ignored Sanyo's advice and used the ultra -fast charger I had. This may have damaged the performance of the batteries. I have a Fameart slow charger that I will now try, if it's not too late. I have three sets of Eneloops, which I would like to go on using, if I can get a better performance from them. I will check getting a charger from Panasonic. If not, I now know what the options are, thanks to your help.
Kindest regards, Bob
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49 posts
12 years
Nr. Bristol
If anyone has had a similar experience or has any ideas which might help, I will be very pleased to hear from them. Thank you, Bob (Pikaholic)