They are also very good at repelling water and have a very good temperature range where they work best. The main characteristics of a silicone-based grease are that it has very good resistance to hot vapors and can withstand temperatures from -40 °C (-40 °F) all the way to +150 °C (302 °F). Often people don’t use anything on their car battery terminals to protect them, which is fine when everything is working as it should. This lubricant is not commonly recommended for protecting terminals, but it can be used in emergency situations.

He demonstrates resistance between two copper bars lying down, one on top of the other, with several greases between them. When using this product please be careful not to use too much to the point that you would create a barrier between the terminal and the clamp preventing a solid connection. Eventually, gas will find a way to escape due to high-pressure buildup inside a battery through terminal seals making terminals corrode. Prevents the contact resistance from increasing during operation and ensures lower loss than with untreated contacts.We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. This is especially important if you trying to charge a new car battery, if you damage it by overcharging it, you will void warranty by doing so.

If we want to compare the resistance of different greases, we need to make sure to measure them first. They can be used in winter times where temperatures are low and also in emergencies where you don’t have any other choice. Most of the battery manufacturers will not give such an informations, if you compare car battery brands from manuals, you will not find any recomendations about should you put grease on terminals or not. In our situation, with car battery terminals, we need as little resistance as possible to maintain a solid electrical connection.Because this grease is made out of graphite does not lose electrical property over time, so it’s a very good long-term solution for protection. There are several types of grease out there you might consider when it comes to greasing terminals to prevent corrosion. But, it’s advisable first to clean terminals and clamps, bolt them together, and after that apply white lithium grease. The battery will work either way, as long as terminals and clamps are clean out of the corrosion and they are connected and well tight together.