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External BIG battery?

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Offline bugbear

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  • A630
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External BIG battery?
« on: 29 / March / 2018, 03:59:39 »
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I want to do a 24 hour timelapse in a remote location.

I have (excellent) Eneloop AA batteries, and a main adapter. Neither are going to do what I need. AA not long enough, mains not available.

This is the only group I know where I might get a positive answer to:

Has anyone made an adapter/regulator circuit to allow the use of an external (e.g. motorbike) sealed lead acid battery to run a Canon camera?

Mine is a (much loved) A630.

  BugBear

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Offline reyalp

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Re: External BIG battery?
« Reply #1 on: 31 / March / 2018, 15:40:55 »
There have been a few threads about this on the forum, especially in the hardware mods subforum https://chdk.setepontos.com/index.php?board=36.0

Searching google with site:chdk.setepontos.com and terms like external battery or external power should get some useful results.

Collecting the relevant threads and best practices on the wiki could be a helpful contribution.
Don't forget what the H stands for.

Re: External BIG battery?
« Reply #2 on: 31 / March / 2018, 16:14:58 »
Has anyone made an adapter/regulator circuit to allow the use of an external (e.g. motorbike) sealed lead acid battery to run a Canon camera?
As recently discussed here : Extended battery life for remote shooting there are a lot of nice high efficiency, high current, DC-DC convertors available.  A couple of nice examples from Amazon :


https://www.amazon.com/gp/product/B019RKVMKU/ref=ox_sc_act_title_4?smid=ATVPDKIKX0DER&psc=1


https://www.amazon.com/gp/product/B078TBTPNH/ref=ox_sc_act_title_5?smid=A2TKGQERXRZT6A&psc=1
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