topic Re: Power needs from a 12V DC for DC Coupler DR-E6 in Camera Accessories

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

DeepSky — Wed, 11 Feb 2026 14:35:02 GMT

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.

Re: Power needs from a 12v DC

tvshootr — Wed, 11 Feb 2026 02:07:08 GMT

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.

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

DeepSky — Fri, 13 Feb 2026 01:09:31 GMT

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.

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.

. 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.

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

shadowsports — Fri, 13 Feb 2026 17:41:24 GMT

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.

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

DeepSky — Sat, 14 Feb 2026 02:08:48 GMT

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.