What you say could make sense if the Wolf doesn't like voltage drops. The stock ecu starts the car first go no questions asked.
I run a small Odessey battery on the car, which doesn't have huge reserves. I've noted battery voltages down around 9.8V-10.1V or so when cranking on my laptop. And of course the little battery doesn't help things if the car doesn't kick over in the first 2 seconds or so.
I'll connect up my Hilux's 500CCA monster this afternoon and try that. Might be time to rethink battery options Pity as this little Odessey is virtually brand new.