No Chas it can't. Not man enough. Which is why I have two spilt charge systems on my 80. Main battery only powers the starter and a split charge to my other bonnet battery from which runs EVERYTHING relating to the truck itself. There is a second split charge taken from the main battery to this CTEK set up. That is the dc to dc thing and aux input from things like the solar panel.
Now, once the leisure battery in the boot is full, the CTEK reverses and takes any power it has coming in from solar, wind turbine, hydroelectric scheme etc and puts it back into the starter battery. The CTEK will never drain the starter battery and will top it up when it has spare. Now I presume that it will top up at 14.4 volts too so the starter battery gets a better conditioning than it does from the alternator.
Now, if I do suffer a flat starting battery, I can use the National Lunar split relay to jump the starter from the second bonnet battery. Or a pair of jump leads if necessary.
Neat huh? Essentially I am running two unconnected systems to three batteries. When the Nat Luna is connected, the CTEK will basically just see one large starter battery.
That's the theory. Of course it relies on swapping to 12v start.
