Using a dummy battery in a EOS 70D

[Summersond]

My question is this:  I am getting a dummy battery to plug into the camera so I can use an external larger battery source.  I want to also use an ac adaptor to feed 7.5v to the camera but don't know how much current the camera draws.  I need to know so I can get a large enough adaptor to supply the camera.  Any help is appreciated!

Thanks!

[Skirball]

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@ezpop wrote:

Heating may be caused by battery. I heard that with a battery grip or external battery pack, thing may improve. With a dummy battery, I am not sure.

But you have to be careful with the temperature issue which may cause severe consequence to your camera.

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You never know what you're going to get with electronics, but theoretically, the AC/DC conversion takes place in the powerpack, outside of the camera.  The battery part of the adapter is nothing more than an oversized plug, it's not going to generate any (notable) heat.  Much less than a battery produces due to the chemical reaction.

All that assumes a properly designed electronic, of course.

[Summersond]

Got the device and plugged in. Haven't had a chance to use it yet but the battery level shows 74%. That is good as it doesn't seem to be dumping too much voltage to camera. This is the unit I linked to earlier.