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05-25-2018, 08:45 AM - 1 Like   #1
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Pentax K-1 MK2 battery consumption rates

How is your MK2 doing? I have noticed lower battery life compared to K-1 Mk1 when doing multiexposure composites. I often run a batch of 64x or 128x exposures and right now I am getting about 300-400 exposures less per full charge compared to mk1. This is with the battery that came with the camera body and also another D-LI90 battery which I have used since I got battery grip for KP (about 6 months). The latter has enough charge cycles so not a new battery issue.

Depending on the temps, running multiexposure series easily gets 2000 - 3000 shots per charge (mk1) and now this has dropped to about 1700-2500. Similar difference in traditional liveview composing where the new model cuts down available composing time somewhat.

05-25-2018, 09:26 AM   #2
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QuoteOriginally posted by MJKoski Quote
Depending on the temps, running multiexposure series easily gets 2000 - 3000 shots per charge (mk1) and now this has dropped to about 1700-2500. Similar difference in traditional liveview composing where the new model cuts down available composing time somewhat.
That's in-line with the specifications. According to CIPA standards, the K-1 managed 760 shots on a fully charged battery, whereas the K-1II manages 670, which is about 12% less. Assuming you were getting 2000 multiple exposures with your original K-1, you'd expect to get 1,760 from the K-1II, give or take a little...
05-25-2018, 09:28 AM   #3
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Battery life (CIPA) is down to 670 from 760, so this was to be expected.


Edit: beat me to it.
05-25-2018, 09:41 AM   #4
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QuoteOriginally posted by LensBeginner Quote
Battery life (CIPA) is down to 670 from 760, so this was to be expected.


Edit: beat me to it.
I wonder why? Is the new image processor really that power-hungry?


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05-25-2018, 10:54 AM   #5
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Compared to my K-3 II, i'm actually getting really impressive battery life from my K-1 Mk ii. I charge the battery much less frequently now, despite using the camera more. I'm very happy with it.
05-25-2018, 11:42 AM   #6
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QuoteOriginally posted by scotjames Quote
Compared to my K-3 II, i'm actually getting really impressive battery life from my K-1 Mk ii. I charge the battery much less frequently now, despite using the camera more. I'm very happy with it.
Suspiciously optimistic comment..

I am afraid you may be asked to prove your happiness

Remember : you are always happy until proven otherwise and don't let anyone tell you different :^)
05-25-2018, 02:54 PM   #7
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I get about the same battery life from the K-3II and the K-1. Both of these were down from the K-5, I assume because of the GPS being always on, and the K-5 not having one.
05-25-2018, 03:26 PM - 1 Like   #8
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QuoteOriginally posted by BigMackCam Quote
According to CIPA standards
I believe the CIPA standard for battery consumption [PDF, 180k] models 'typical consumer usage' of a camera, with frequent use of zoom and flash, multiple camera on/off cycles etc.

The problem with using the CIPA standard for MJKoski's usage is that his usage is far from typical.

05-25-2018, 03:33 PM - 1 Like   #9
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QuoteOriginally posted by rawr Quote
I believe the CIPA standard for battery consumption [PDF, 180k] models 'typical consumer usage' of a camera, with frequent use of zoom and flash, multiple camera on/off cycles etc.

The problem with using the CIPA standard for MJKoski's usage is that his usage is far from typical.
Right... but, assuming his usage is consistent between the K-1 and K-1II, the percentage difference should be broadly applicable. And it turns out to be pretty much spot on...
05-25-2018, 03:40 PM   #10
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Ya! It seems to follow the CIPA standard difference between the two models.
05-25-2018, 04:53 PM   #11
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QuoteOriginally posted by rawr Quote
... The problem with using the CIPA standard for MJKoski's usage is that his usage is far from typical.
Percent difference in observed usage matches % diff in CIPA average
Not all of his usage is atypical !
05-26-2018, 02:37 AM   #12
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That is interesting. What actually causes K3-II to drain the same D-LI90 that quickly? D-LI90 and KP goes for ages, when shooting multiexposures in a row it reaches almost 4000 shots @ +10C temp.
05-26-2018, 02:19 PM - 1 Like   #13
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QuoteOriginally posted by MJKoski Quote
That is interesting. What actually causes K3-II to drain the same D-LI90 that quickly? D-LI90 and KP goes for ages, when shooting multiexposures in a row it reaches almost 4000 shots @ +10C temp.

I wouldn't know, but the KP actually uses the D-Li109 battery.
05-26-2018, 02:29 PM - 1 Like   #14
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It can use the D-LI90 with the grip.
05-26-2018, 02:40 PM   #15
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QuoteOriginally posted by Kunzite Quote
It can use the D-LI90 with the grip.

Ah ok now it makes sense.
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