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Never seen any black discharge on a battery acid would turn to a white powder with a green tint on metal parts. Is it maybe battery cleaner or anti corrosion gel?
my autozone yellow tops did that right before they died
I had never seen black residue on a battery before either maybe thats why most batteries are in black cases lol
Aren't these sealed batteries? I can't check mine as I replaced it a couple of years ago with a high capacity, deep discharge type usually used in public safety vehicles.
well i cleaned it off, the terminals were full of that white powdery stuff. But it seems to be cranking fine. but ill get a new one before its too late
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