I dont know how to describe in much detail much as a daily user of my car noticed before the batt change car was like "shivering" whenever i slow down the drive like in car parks where u slow really down to negotiate in tight spaces, then pick up also sluggish, while at junction car also shivers when aircon kicks in
After batt change symptoms went away n car felt "renewed"
The batt was installed with my engine running, thus i believe ECU was not resetted, then i could be wrong need some bros verification
But in short car batt change somewhat make the car drive feels good n shivering symptoms during idle n slow drive disappears
Was using Indigo batt from TCM lasted only 1yr 4 mnths
Changed to Varta Blue Dynamic 45aH
Hope some bros n sis knowledgeable to shed some light on this observation
Be monitoring the FC to see if there any increase in efficiency coz i somewhat feel it is better now