Battery Basics
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ELECTROLYTE
Battery electrolyte is a mixture of 64% distilled
water (H20) and 36% sulfuric
acid (SO4). Batteries today have an electrolyte
with a specific gravity of 1.270 (at 20'C, 68'F) when fully charged.
Specific Gravity is the weight of a given volume of liquid in comparison
to the weight of the same volume of water. The higher the specific gravity
of a liquid the denser (thicker) it is. Testing specific gravity will
be discussed in the Battery Service Module.
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