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GXR A12/S10 - Interval mode battery performance test

odklizec

odklizec

PK
This is a test of GXR A12/S10 battery performance in Interval mode. Tested with genuine DB90. I posted similar test with GRDIII here and GX200 here.

Settings:
RAW+FIne JPEG, infinity focus, all sounds OFF, LCD brightness set to 50%, freshly charged battery.
Interval set to 10 minutes.

GXR A12 - LCD ON
  • - 16 frames (including first manually taken frame)
    - first frame - 11:14
    - last frame - 13:44
    - runtime 2:30 (max + 9 minutes)

GXR A12 - LCD OFF
  • - 20 frames (including first manually taken frame)
    - first frame - 15:29
    - last frame - 18:39
    - runtime 3:10 (max + 9 minutes)

GXR S10 - LCD ON
  • - 22 frames (including first manually taken frame)
    - first frame - 17:27
    - last frame - 20:57
    - runtime 3:30 (max + 9 minutes)

GXR S10 - LCD OFF
  • - 28 frames (including first manually taken frame)
    - first frame - 6:20
    - last frame - 10:50
    - runtime 4:30 (max + 9 minutes)

So far, I'm somewhat surprised by the results. S10 powered by the 1700mAh battery seems to be capable of identical runtime as GRDIII or GX200 powered by 1250mAh battery. True, there is a difference in my measurements. The GXR test was done with RAW+JPEG while GRDIII and GX200 test was done with JPEG only. Tomorrow, I will repeat this test with LCD OFF and JPEG only. We will soon see if the RAW+JPEG have a measurable impact on the battery runtime or if the GXR is simply more power hungry.

Update:
After the second round of Interval mode shots, I think the RAW+JPEG has minimal (if any) impact on the battery draining. Permanent LCD ON is definitely much higher battery drainer, which is not a surprise ;) All in all, the GXR battery runtime is far from great. Considering the GXR battery is larger (both in size and capacity), I would expect noticeable longer battery runtime in case of S10. GX200 with less powerful DB65 is able to take exactly the same number of shots. A12 is new beast build around the large APSC sensor and its power consumption is expectedly higher. I have nothing to compare it with. But I just feel that the GXR+A12 battery runtime should be better.

Conclusion:
It's always good to have one spare (and fully charged) battery in the pocket. But in case of GXR (especially with attached A12), I would recommend to buy at least two spare batteries.
 
I wonder if they will do a battery grip... I would probably get one since I go hiking and can be away from power for 3 to 4 days. I am not really big on carrying spares since I have a habit of losing small things.
 
I am not sure I understand these numbers. Are you saying that a GXR with a freshly charged battery took only 16 photos before giving up? Isn't that about half a second of video time? :eek:
 
I guess you missed the main point of this test ;) It's all about Interval mode battery runtime! Of course, the DB90 is capable of quite normal battery run (200-300 shots) in shot to shot mode. Nothing impressive, but what should we expect form that small battery? It's just the price we pay for an overall small GXR body. It's definitely good to have spare (charged) battery with you!
 
Pavel, many thanks for these tests. This is indeed something I have not realized, that the larger sensors are also more power-hungry and will drain the battery much faster. Definitely something I have to keep in mind when deciding about GXR and the future APS-C zoom module for my timelapsing...

Martin
 
Martin, I believe there are plans to release a vertical(battery) grip for GXR. The body is already equipped with necessary communication plug and the mount holes and I believe a prototype of the grip has been shown/mentioned last year at CP+? Let's wait and see ;)
 
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