No I don’t sorry, I hope you do well
It is motor oil, as oil is used to reduce friction
The battery electrolyte's specific gravity can be used to test the status of charge of a battery cell in the most precise and direct manner possible.
The state of charge increases with the specific gravity of the electrolyte. Voltage is the difference in electric potential between a battery's two terminals. The unit of measurement for voltage is called a volt (V), after the battery's creator, John Volta. An electronic tool called a state-of-charge battery tester is made to check the life and rechargability of an electric battery. A battery's current charging status and voltage output can be provided by a state-of-charge tester, which can also look for any defects that might impair the battery's overall performance.
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