Well the battery tender to cigarette plug idea has worked flawlessly, I am using a 800ma battery tender in this case, and a slightly discharged battery. It did have a red light initially, so it was doing some charging, and this morning is on the "tending" part of its cycle. No issues! Obviously if I was to have a deeply drained battery I would pull the bonnet, and use my bigger charger connected directly to the battery terminals.
Last edited by Draggin; 21/10/16 01:05 PM.