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09-23-2011, 02:12 PM   #1
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Low Battery

I have the K-7 with latest firmware 1.11 and the Pentax grip using 6 Nuon NiMH batteries + the rechargeable batt in the body. First off, the reporting of the battery is not very accurate when the batteries are getting low. The second thing is that Live View will stop working, I hear the shutter flip and then revert back-- about 1/30th of a second speed (sounds different from the mirror slap when shooting pictures) I felt the sense of dismay and the battery only said 2/3 full and the live view action sounded like it was broken only after 6000 shutter actuations... I changed out the batteries, everything started working again.

Just an observation after shooting about 7 minutes of HD video on what I thought was 50% battery when it really was 25%...

09-23-2011, 03:20 PM   #2
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I don't have any experience with Nuon batteries, but i've observed on this and other forums that the brand and sort of batteries you put into a Pentax DSLR's can make a big difference. On my K200D the rechargeable Eneloops worked fine and if more power was needed I used Lithium Ultimate Energizers. Using those Energizers on the K-5 whilst filming/using live view drained them pretty quick to but those might have been from an older batch. But those two kind of batteries should do the job. A good alternative is to switch to using the normal batterie in the camera itself before using power draining functions...
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