Quote:
Originally Posted by SteveAus
After a 100 km drive, I was surprised that the battery was reading only 86% after starting at 96%, via the CTEK Battery Sense module.
These are weird numbers in my mind. I would have thought the battery would have been topped up via the alternator, rather than run down. The ASS was still working at this point.
I’m not sure the CTEK battery module is as accurate as I would like. Therefore, I’ll run it for a few more weeks to see if it settles down after a few more long drives or another charge. If by then it’s still misleading, I’ll bin it.
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Battery State of Charge (SoC) will drop in use, when we use a charger to boost to 95 - 100%.
Totally normal and energy management doing its job. We run at something like 80% SoC, to allow battery capacity for over-run energy harvesting.
Battery output supports energy demands and ancillaries, until SoC drops to a level when the alternator assists to keep SoC within a specified range.
It's no fault of the CTEK charger.