Using Dielectric Grease on the Power Connections of a Garmin® Marine Device

Dielectric grease is commonly used to lubricate and help seal electrical connectors to prevent water intrusion in a marine environment. While the power cables for Garmin® marine devices are designed to prevent any water from accessing the power connections, if an extra level of protection is desired, dielectric grease can be used.

Since Dielectric Grease is an insulator, do not apply the compound directly to the metal contacts. Instead, coat the outside of the connector and the connector's O-ring seal, if applicable, with a thin coat of grease. This will ensure a seal that will protect the contacts from the elements without impeding the electrical connection.