I'm driving Melb-Adelaide-Perth-Broom-Catherine-Alice......etc you get the direction and I'm not doing it in a Kombi (was the plan many years ago!). I'm away for 10 weeks. I've replaced batteries too often over the years. CTEK I have my camper connected all the time to a CTEK MXS 7, gets a good drive monthly. Works well. I was thinking connect my DC (battery installed 25/5/16) likewise? Leave them connected to a CTEK, if so which the 7 or 5 MXS Test and Charge? Or other CTEK? BATTERY MANAGEMENT Alternatively, Should I remove batteries? Let them go flat recharge them, I don't know? Thanks for your comments and suggestions.