Pentax K100 Battey Problem

I used too use rechargeable 2700 AAs, but I didn't like the behaviour of the meter; it just didn't seem very reliable (would say full and a few minutes later only half full or similar). A few months ago I've bought Sanyo Eneloops and have had no problems since. Might be worth a try?

Some types of rechargables develop 'memory' after a while, which greatly reduces their capacity so they don't charge fully, others may suffer a bit of a voltage drop and give incorrect readings on the meter (and with normal rechargables they start to lose their charge as soon as you take them off the charger). Like lidy, I changed to Eneloops some time back and have never had a problem since then (these will hold their charge for much longer periods when not in use).

I would never use any other type of battery with my K100 now, and they seem to run for ages without showing any drop on the meter, even though they have a smaller listed capacity (2000ma) than the previous 2900ma types I was using. I had exactly the same problems you describe, but have had none whatsoever in the 12 months since I switched to Eneloops.

I bought a set of four batteries from eBay, and these came with a very nice 'smart' charger, which not only charges the batteries much faster, but also shows the capacity of each individual battery as it is charging, and this makes like much simpler as well.

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Hi,

I agree with above, Eneloop are a very popular Choice, I have used Duracell Nickel Metal Hydryde (NiMh) Batteries in my Flashguns (2650 ma)for 3-4 years but when they need replacing i shall go for Recyko ones as these are recommended by Which? and are cheaper. Just make sure that you use a NiMh Charger with any of these batteries.
Regards - Pete

Hi
I have used rechargeable batteries in my K200d , but gave up on them as I could'nt trust them.
I have since started using Energizer Lithium and find them amazing, 2 sets having lasted me 6 months including extensive use on 2 holidays.
If you buy them at the right time when on offer (£3.96 for 4 at tesco recently) they are good value.
Regards
GTW

A week or so ago someone had a similar issue. They cured the issue by careful cleaning of the cameras battery contacts.

Cedric

Malbury,
Welcome to the club... I had the same problem with a new K100d 2+ years ago and again with a recently acquired K200d. The problem was the same with several battery types, both rechargeable and one-shot. The simple fix in both cases was to gently form the battery contacts in the cover to give a better/tighter/positive contact to the battery poles. Do check occasionally that the contacts are clean and that they still have enough rise to make good contact. I have had to re-do the K100 contacts over the 9000+ actuations that I have on the body.
Regards
wnrr