hi,
Originally posted by Rob I just took 280 10Meg Jpegs with 4 AA NiMH 2300mAHr Engergizers.
That includes downloading most of them and ALOT of fooling around with the LCD, Menus etc, because I was getting familiar with my brand new camera.
This is adequate for me, I always have extra batteries and even in a long day of shooting I'm not likely to take that many pictures.
I have some 2300 NiMH energizers that cause problems with my K200D. I recharged a set on friday 8/8 - I did a "refresh" on my Maha C-9000 charger, which charge/discharge/charge cycle on my NiMH. This showed the batteries as having capacities between 1600 and 1900 mAh. Not new batteries, but not dead.
Yesterday (8/11), after doing some long exposures, I needed a new set for the K200D, and put those energizers in. The K200d would not turn on.
I tried another set (cheap grey Lenmar 2500) which was fine. I took off one Lenmar, and tried every one of the 4 Energizers in the last battery slot. The camera only powered up with one of the four Energizers in place, and the battery indicator did not show full.
I used my Maha to discharge those energizer and measure their remaining charge. One had already gone down to about 1300 mAh and another 1000 mAh . That's pretty bad for sitting 3 days in a drawer ! But still, there was some charge left, and I feel the K200D should have powered up.
Since I got the Maha C9000, I labeled all my batteries with a sharpie, and put them all in a spreadsheet, along with their charge date, and the available capacity measured. This will help me weed out the bad batteries.
It certainly seems the K200D is picky about the batteries. It may be the voltage. However, my Nikon Coolpix L1 digicam also sometimes doesn't like some of the recently batteries too. I think I will need to also test the batteries in the cameras right after they are charged, along with writing down the measured capacity ...
One thing I can say so far is that the Sanyo Eneloops have always worked after being charged, but I have only had them a few weeks.
According to my measurements, between Energizer batteries, the 2200 are better performers than the 2300, both for measured capacity as well as ability to retain charge. I will post some of my spreadsheet data later.
Between Lenmar, the Lenmar 2500 purple batteries (
http://server2.electronicsmicro.com/images/8fc42e40354fe9dcfbe560df49ebe39c/...-L._SL500_.jpg) are much worse (around 1700 - 1900 mAh measured) than the Lenmar 2500 grey batteries (
http://ecx.images-amazon.com/images/I/41-PuSQ6YcL._SL500_AA280_.jpg), which measure about 2300.