The giving off of oxygen gas at positive plates and hydrogen at negatives, which begins when charge is something more than half completed-depending on the rate.



Electrolyte that has been immobilized by the addition of a chemical agent, normally fine silica, to prevent spillage. Batteries made with gelled electrolyte are often referred to as Gel batteries. Gel batteries are one typical type of VRLA battery.



A contraction of the term “specific gravity,” which means the density compared to water as a standard.



A lead alloy framework that supports the active material of a battery plate and conducts current.



The reference potential of a circuit. In automotive use, the result of attaching one battery cable to the body or frame of a vehicle that is used as a path for completing a circuit in lieu of a direct wire from a component. Today, over 99% of automotive and LTV applications, use the negative terminal of the battery as the ground.



A set of plates, either positive or negative, joined to a strap. Groups do not include separators.


This site utilizes cookies and similar technologies for analytic and notification purposes. Use of MK Battery's site indicates you are agreeing to our Privacy Notice and use of Cookies