Disconnect battery cable on CRv?

To answer you question, yes. A one time/way trip then connect it and reset your radio codes.
Pull the radio fuse might be a good idea, if you want to get on your back and find and manipulate the little fuse pullers, that will eliminate connecting the battery every morning or 8 hours of towing.
Putting in a charge line/switch etc for this one way trip seems like a waste to me.
Personally, I would pull the radio fuse if you are able to do so.
Under your hood there is a plastic electrical box that has fuses and a fuse puller if its the same as my 2013 model.

We tow a 2012 CRV and on a recent 4000+ mile trip followed the owners manual instructions for towing behind a recreational vehicle, the battery did not discharge. We use a switch to "pull the fuse" so it is easier, we like easy.

My '09 CRV has the same problem. The quick and easy solution, maybe not the best, was to install a battery disconnect like THIS

If you need power for the brakes or lights this won't work. I'm using a Ready Brake and the lights are independent.

Probably better is a charge wire from the MH. Or maybe a switched fuse (check recent CRV posts)

NormF

you should read you owners manual from the CRV-Towing section. It probably tells you which fuse to pull.;)

Sounds like you are turning the ignition key one click to much.If all your indicator lights on the dash are on , that is probably your problem

I went to Hinda and put a new battery in. Honda said no issue if I want to disconnect the battery. Mechanic showed me two fuses to pull. Same as no battery.

We will see tommarrow.

Thanks for replies.

Steve

I added charge line from my motorhome to my CRV, if it runs down your battery in a few hours there is something wrong, something isn't turned off or your road braking system is malfunctioning. I have towed for three days straight without and the CRV started each day, with the charge line.