Quote Originally Posted by glenhendry View Post
You want as close to 14.4v chargin a 12v battery as possible. If the voltage drop on your aux plug is significant (because its a long run and a small wire), you can get a small automotive step up transformer to make sure the battery is kept at optimum.
What I meant to say was the trigger for the charger is off the aux, not the charge cable itself. It is 10sqmm cable off the battery.

Rob