I have a Class C rig with 6 X U2200 6V interstate batteries, they are about 5 years old, well taken care of, toped off regularly. This spring cleaned the corrosion off the terminals and did a regul...
Missed that. The acid is crystallized sulphate in each battery cell. Running the cells at 15+ volts will reverse as much crystal as possible back into the electrolyte. Some will blast away and fall to the bottom but it should still improve things. Ideally voltage at low current will do the most good I believe.
Jim
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