COUP-DE-FOUET (Battery phenomenon)
Well when I first started testing my AGMs, I found a tiny voltage drop and then slight recovery of voltage when first applying a constant heavy load. I wondered if it was just variation in my instrume...
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Its always been that way. Forever as far as i know that when you tried starting your car and the battery wouldnt turn it over enough to start you waited a few minutes and tried again as it would always have a bit more power.
