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Occasional Contributor
Posts: 5
Registered: ‎01-09-2020

Re: 12VDC powered battery replacer?

[ Edited ]

Well, my  $16  Ebay 12vdc to 8vdc adaptor arrived the other day
This one

[link removed per forum guidelines; screenshot from link provided to aid discussion]
5.JPG
I've put it through it's paces, connecting it to Canon's DR-E6, and it works just fine.
Tried it on first with dummy loads, then my 10yr old 5DM2, and when that passed all tests, to my brand new 6DM2.
Never dropped below 8v output no matter how I pushed it, never spiked over 8.2, including when switching the 12vdc power supply on and off, with the camera switch pre set to "on". (something the Canon camera tech's told me you CAN do, without harm)
The heaviest use of power is when doing continuous shooting (click click, click, - not movie), about 1.5 amps, 1.7amps for the 6D,
otherwise never more tan 0.6 amps, and that was with a lens attached, drawing power for auto focus, auto aperture, anti shake, and tethered live view and live view shooting.
I bought the DR-E6 dummy battery (yes pricy) because it had a long cord (which I wanted), a ferrite choke to absorb spikes, and the Neg wound around the pos wire like a shield which enhances current flow. It also turns out to not be just be a  battery shell. There's at least a capacitor to no doubt absorb or fill short spikes or dropouts., what else might be in it I don't know. The contacts on the dummy aren't exactly like a battery, which is maybe why the camera recognizes and reports it all as being DR-E6 live powered.

VIP
Posts: 12,081
Registered: ‎12-07-2012

Re: 12VDC powered battery replacer?

I would not let that thing even in the same room my camera was in.  Let alone hook it up. Smiley Sad

EOS 1DX and 1D Mk IV and several lenses!
Occasional Contributor
Posts: 5
Registered: ‎01-09-2020

Re: 12VDC powered battery replacer?

Understandable ebiggs1 Especially considering the price and sophistication of our cameras and lenses.

 

But we astrophotographers are made of inventive, intrepid, and inovative stuff. On the Cloudy Nights forum for example, I discovered a number of Canon users have been using a variety of 12vdc powered solutions for years now. Without issue.

 

Putting in a word for Canon. Canon is the only dslr manufacturer that has so far as I know been willing to cater to the amateur astronomical community with enhanced spectral response versions, the latest being the EOS Ra.

Occasional Contributor
Posts: 13
Registered: ‎06-04-2017

Re: 12VDC powered battery replacer?

[ Edited ]

ebiggs1

I think you've made that clear enough. LOL

There are many of us who have used third party power supplies and batteries for many years without incident. You just need to buy quality units from reputable dealers. Half the "genuine" Canon batteries on eBay are low quality fakes.

YMMV

5DIV, 7DII, EF70-200/2.8 IS II, EF24-70/2.8, EF24-105/4, EF17-40/4, EF50/1.4, EF85/1.8, EF135/2
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