Blood pressure is usually expressed in terms of the systolic pressure (maximum during one heart beat) pressure over diastolic pressure (minimum in between two heart beats) and is measured in millimeters of mercury (mmHg), above the surrounding atmospheric pressure (considered to be zero for convenience).
Corrosion on the terminals is due to hydrogen gas being released from the acid in the battery. It mixes with other things in the atmosphere under the hood and produces the corrosion you see on the terminals. Generally, if the corrosion is occurring on the negative terminal, your system is probably undercharging.
In addition, thermal expansion will force some of the liquid out of the battery vents causing a chemical reaction/corrosion. Battery Pro works by creating a protective anti-corrosion thin coating that acts as barrier on the terminal and connectors to prevent the chemical reaction with other materials.Unlike the grease solutions often used today, Battery Pro does not absorb moisture.rotects deep cell commercial and marine battery terminals from the harmful effects of Sulfuric Acid In a car, boat, generator, etc. the battery supplies the electrical current that the starter motor requires to start the engine.