I just said exactly that. It doesn't "drain" a battery, it causes the fluids to evaporate, which in turn causes the batteries life to be shorter than normal.Ambient HEAT does affect battery life.
US Ford product's 12V sockets are switched: off with the ignition. My last three new ones are set up this way, but my 2009 Mercury Mariner (Maverick in OZ) is unswtched: powered all the time. I don't know when it was changed.We must do things differently down here.
I purchased a new car for the bride a few days ago and I have not tested it but with every other car I have ever owned the power socket shut off with the ignition.
I currently have 12 other cars from 8 different manufacturers and they all loose power when the ignition is shut off.
I find it interesting and like learning new stuff from other parts of the world, could it be part of our ADR's ?
I did the same with my Oxford Heaterz grips. Changed the plug over to an SAE and use the BT Jr lead on the battery: only need one lead coming from the battery that way.I would personally recommend a CTEK MUS4.3, but a BT will do
Install a charging pigtail and hang it out the side. That way you have an easy plug in when the bike is stored for short or long periods. I piggyback off the Warm N' Safe heated gear dongle and just plug my chargers into it.
10-4. Disconnecting the battery will stop the clock. To avoid resetting it, reconnect the battery at exactly 1am or pm.You don't need to remove the bike battery, simply put an SAE pigtail on the battery. You should have got one in the BT package. If not then get one
......you can install it on the battery, leaving the plug outside, attached to the frame. You can then plug and unplug as needed without removing the seat.