Ahmet, Symptoms?.... Kaboom!
During the charging process the same electrical current that is used to charge the batteries also tears the chemical bonds in the water molecules apart. This is know as electrolysis. The result is hydrogen and oxygen gas. All lead acid batteries are subject to this. This is the reason that water needs added periodically. Overcharging and using excessive current will increase the amount of electrolysis occurring. My opinion is that the amount of explosive gas being generated is relatively insignificant and our boats are not air tight enough to allow gasses to accumulate. Hydrogen is also different from propane and gasoline fumes in that hydrogen is lighter than air and will not accumulate in the low points of the bilge. Josh Muckley S/V Sea Hawk 1989 C&C 37+ Solomons, MD
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