Hi,
Originally posted by Canada_Rockies I use a k10d, so this might not be pertinent to your situation, but on the other hand, it might. I have observed that when the grip battery fails - I have the camera set to use the grip battery first - I must turn off and on the camera to have the camera actually switch to the camera battery. There is at least one other post in this forum somewhere that observed the same thing.
I set my camera to grip first, so that I can recharge the grip battery while continuing to shoot with the camera battery, and replace the grip batter later.
I have no evidence that it was a power/battery issue at all so far.
There was still a display on the top LCD - ISO, f number, speed. It was just completely frozen. If the camera had lost power, than that would have disappeared.
The back LCD was showing black.
To me, it just looked like the camera was stuck - some firmware bug, or doing some very long internal processing. I can't really explain it.
FYI, my camera still powers fine with the camera batteries, and shows half charge on top. I just swapped them for the grip batteries. It shows full charge.
I just put the original camera batteries back in the camera, and it now shows low charge.
I also connected the grip. The setup menu show low charge for the camera battery, and full charge (green) for the grip battery.
Of course, the battery charge indicator on the K200D is often not very accurate, but at least I know the batteries are still OK.
Keep in mind that I was able to shoot 500 more pictures after the incident, after I removed the battery grip.
I think it's possible that the grip batteries were not used at all during my entire shoot. Since I was shooting so fast, I hardly used the back LCD for picture review. I simply did not have time. My finger went right back on the shutter button, and focus will turn off the LCD instantly. The LCD is the power hungry part of the camera.
I am going to discharge both sets of batteries in my MAHA C 9000 to see how much charge remains in them. I expect not too much in the set that was in the camera, and a good charge in the set that was in the grip. I will report here later.
Edit: the starting voltage is pretty low in the eneloops that were in the camera : 1.06V, 1.11V, 1.05V and 1.04V . But they are still good enough to power the K200D, amazingly. Though the battery indicator shows low charge. I'm discharging at 500 mA . I expect it won't be too long before they are depleted.
Edit2: the discharge on that set finished with 36 mA, 121 mA, 33 mA, and 97 mA remaining in each battery respectively.
Edit3: I started discharging the second set, from the grip, also at 500 mA. The battery voltage was 1.19V, 1.17V, 1.19V and 1.20V. Since the normal voltage for NiMH (even eneloops) is 1.20V, this is typical of near full-charge batteries.
Edit4: I reviewed the EXIF data of a few random files that I shot yesterday with PhotoME, before I took out the grip. If I believe the data, then they were all taken with the "Body battery". So, I think I just got 1300 shots on one set of eneloops yesterday. And it wasn't a freshly charged set, either. I had taken about 100 pictures earlier this month on that same set. I think it was charged during the last week of may or early june. The first pictures taken with the set were on June 8.
So, it looks like I got about 1400 shots total on one set of eneloops. That must be some kind of record ! I wish PhotoMe could give me the stats on how many were without flash, built-in flash or external flash. I know not too many were with the built-in flash, just a few. I did not change the other 4 eneloops in my flash this month, either
Edit5 : the grip batteries discharge came in at 1642, 1653, 1659, 1630 mAh respectively. I would have expected a bit more. Maybe some of the individual shots were done with the grip after all. I didn't check the EXIF of all 800 shots that I took with the grip on.
To be back on-topic ... I'm still upset about the camera freezing up.