The OP of this thread again here - hi to all, and thanks for your input. I’ve driven dozens of various cars for some 50 years now, but must tell you my Miata’s electrical system is by far the least matured and full of nasty surprises. I’m from Poland, so of course I do have all this i-Eloop voodoo - and while its main idea of more efficient energy recuperation looks attractive on paper, in reality I am already running the third battery since the car is new!.Here’s the story:
on the i-Eloop screen, the i-Stop stucks at “not ready” state with the battery icon not lighted blue (using my Bosch C3 charger all night doesn’t change it)
so, I take my car to the Mazda Authorized Service; they replace the battery and indeed: as it was still summer, just some 4-5 km ride was enough for everything to warm up enough for the i-Stop to kick-in, with the “Ready” status
after some 3 weeks of normal (though mostly city) driving, the i-Stop not ready status returns - and will not change after the whole night of battery charging
This way, I’ve had 2 batteries replaced (which makes it 3 including the original one), and the Service people seem unable to repair it. The car still has warranty, so I escalate the problem to their workshop manager. He invites me in after a couple of days, and says that probably none of his employees had told me, but the thing is after the battery charge drops below certain threshold, the i-Stop is deactivated; it’s not enough to charge the battery full - the system must initialized which happens automatically after some 30 km of highway driving, or can be performed at the workshop using some simple procedure on the diagnostics computer.
So I’ve charged up the battery again over the last night, and going for a relaxed tour for the “automatic” i-Stop system initialization Will let you guys whether it works or not - but I can tell you already that even if it does, I don’t like it at all, because it would mean that the whole i-eLoop recuperation system (which i-Stop is a subsystem of) only works properly when driving outside the city using high RPM all the time, and probably in the summer only…
What do you think? I somehow don’t believe it really has been designed like this, and my car is somehow faulty, after all (a short circuit not seen by the diagnostic equipment)?