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Power needs from a 12V DC for DC Coupler DR-E6

DeepSky
Apprentice

Is there a way to use a 12V cigarette plug to power the DC Coupler DR E6?  I have looked online for several hours and cannot find a DC to DC converter that will reduce the 12v down to 8V 3A.  It would be nice to have a power source to use a 12V battery connection.  My DC to AC converter when connected to my 12V marine battery really drains the battery faster than cigarette power plugs do.

4 REPLIES 4

tvshootr
Apprentice

It sounds like you want to operate from your car.  This is a little on the clunky side but a 100 watt inverter in the cigarette lighter will give AC power and then the appropriate wall wort will give the DC power you desire.  This should be enough to run a DSLR or mirrorless camera.  Anything more than that will require a larger inverter.

DeepSky
Apprentice

Thank you for the reply.

While doing astrophotography I do not use my standard camera batteries.  So, while continuing looking for an alternate power source for my DSLR after my post, I found a solution using a USB C PD for my camera.  I even have a battery for my electric heated jacket that will power the camera using this device. 

I found on Amazon a way to power my DSLR via a USB C plug.  I can eliminate the battery brick connection that plugs into a 110v electrical outlet.  You can get cigarette plug power sources that have the female Type C USB plug; however, a cigarette Type C PD plug needs to be a PD30W. 

Screenshot 2026-02-12 at 8.08.50 PM.png

I previously purchased this 12v power hub that has one area for USB type plug ins with all four USB plugs complying with the PD requirement. 

Screenshot 2026-02-12 at 8.09.19 PM.png

.  I am making a 12v Marine Battery power station for my setup.  One day I might go to a remote site that will not let me use my generator at night.

Two reviewers’ comments on the camera power device cable;

One important note is that it requires a USB-C power source that supports Power Delivery (PD). The system draws around 13W of power during use, so a standard 5V USB output is insufficient—using a proper PD-capable AC adapter or power bank is necessary for reliable operation.

Make sure to plug it into a non-data usb c port.

Greetings,

Not sure which camera you are using?  For USB-C PD it's safe to go with a device rated at 9v/3A and 45w (minimum). Plus all that's been discussed.  Cable must be PD rated, and so forth.  This will future proof you for the foreseeable future.  This works on my R5 C which is one of the more power hungry bodys, and allows 8k 60p with all lens features.  All you need is a standard battery in the camera.

~Rick
Bay Area - CA


~R5 C (1.1.2.1), ~R50v (1.1.1) ~RF Trinity, ~RF 100 Macro, ~RF 100~400, ~RF 100~500, ~RF 200-800 +RF 1.4x TC, BG-R10, 430EX III-RT ~DxO PhotoLab Elite ~DaVinci Resolve Studio ~ImageClass MF644Cdw/MF656Cdw ~Pixel 10 ~CarePaks Are Worth It

DeepSky
Apprentice

I am using the Canon EOS 60Da for astrophotography.  The Amazon USB C PD rated cable, I am researching, states it is for my camera.  The standard battery for the 60Da is LP-E6N @ 7.2v and the DR-E6 (substitute battery blank) list 8v - 3A from the AC/DC converter.  I have been using the DR-E6 connected to the AC Adapter AC-E6 for a power source during astrophotography sessions for years.  But I want to convert to using DC power via 12v cigarette plugs, that have USB power/charging plugs and not use AC/DC converters connected to my 12v battery or power reducer type regulators that I have to adjust or make.

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