Should You Use Dielectric Grease On Battery Terminals. An inexpensive way to keep corrosion from building up on your cars battery terminals is to apply a tablespoon of petroleum jelly to both the positive and negative posts. Dielectric grease also protects the terminals from moisture and dirt.
Just theorizing dielectric grease is silicone grease non-conductive but meant to prevent oxidation. Should You Use Dielectric Grease on Battery Terminals. But the improper use of dielectric grease can negatively impact the connection and shorten the life.
I use it for plug-in connections in particular in my automotive hobby.
Just theorizing dielectric grease is silicone grease non-conductive but meant to prevent oxidation. However it can also be used in combination with other various terminals and connectors such as butt connectors ring spade and heat shrink terminals. That is a low current application more than likely and when the connector is snapped together the metal contacts scrape away the grease for a metal on metal contact. As mentioned earlier the battery terminals produce a high-current flow which can get affected if the dielectric grease reaches such.
