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External battery for Sony A7siii?

Started Jun 14, 2021 | Questions thread
kelpdiver Veteran Member • Posts: 5,564
Re: External battery for Sony A7siii?

Ichthyologist wrote:

Thanks for the reply!

There is a bit of room above the hot shoe and that extra battery Nauticam made for the a7sii fit there, so I was hoping for something similar.

right...the well for the flash trigger.   You wouldn't be needing that.   I wonder if one of the OEM battery makers could be convinced to make a custom model that sit in the hot shoe and has the relevant wire leads.  Everyone getting this camera for UW use would want it.

Backscatter suggested same as you, another housing for the battery:

https://www.youtube.com/watch?v=dkOkNySyWrg

well, that looks great, and probably 1/4th the cost that Nauticam would want, but where's the price and vendor?

These are much bigger batteries than normal.   Seems like you would increase your capacity 5x.

I think this is the way to go but the next issue might be overheating with many hours of constant filming (24 fps, 1080p). I'll just have to try and see.

Has anything surfaced to date on this concern?   I'm in R5 land, where it's of course quite real, though I'd only get hit if running in LV too long still counts against me.   I'm going to selectively use the 4k/120, but not in any long sequences.    (Waiting on the GH6)

good luck!

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