which connector do i unhook first on a car battery

#Which connector do i unhook first on a car battery how to#
#Which connector do i unhook first on a car battery install#

It will continue to charge the battery as long as it is connected. Old chargers will not power off or switch to a maintenance mode when the battery is charged. If you are using an older charger or one that is not automatic it would be wise to disconnect the car battery completely from the vehicle prior to charging. Once the battery reaches the optimal charge, the charger will switch to a maintenance mode to keep the battery at a healthy level but it will not overcharge it. These chargers will automatically detect the battery's charge levels and adjust the amperage accordingly. With most modern chargers being automatic and microprocessor controlled it is not necessary to disconnect the battery in your car before charging it when using this type of charger. Do I Need to Disconnect Both Battery Terminals When Charging?

#Which connector do i unhook first on a car battery how to#

Connect the positive (+) terminal first, then the negative.įor detailed steps on how to change a car battery please read our handy online guide ' Simple Steps to Changing Your Car Battery'.

#Which connector do i unhook first on a car battery install#

To reconnect the battery or install a new one, proceed to connect the battery terminals in the reverse order.

Spray the terminal clamps and battery terminals with terminal protection spray to prevent any corrosion from building up.

Use a wire brush with the terminal cleaner spray to clean the battery terminals and connectors.

Clean out any dirt and debris, like dirt and leaves, from the battery tray.

Lift the battery out of the battery tray and place it in a safe place.

Be sure to set the cables aside so they cannot come in contact with any metal or accidentally touch the terminals as you are removing the battery.

Disconnect the negative cable from the battery first, then the positive terminal.You will just need to reset your radio presets and other settings after reconnecting the battery. This is not mandatory and if you don't have a memory saver, don't worry. Connect a memory saver to the OBD-II port in the car to preserve radio presets and other settings that may get erased after disconnecting the battery.Locate the battery and positive and negative battery terminals.Have a car battery terminal protection kit ready to clean and protect the battery terminals and terminal connectors.Gather all of the wrenches and other tools that will be required to remove the battery.How Do I Disconnect My Car Battery?īefore working with a car battery, remove all metal rings and jewelry to avoid creating a potentially dangerous situation if you accidentally make a connection between a hot (positive) and ground with your metal jewelry. Replacing light bulbs and things of that nature are safe to replace without disconnecting the battery. As a general rule, always disconnect the battery when working on electronics. A sudden jolt of electricity to the airbag control could cause it to deploy and cause injuries, damaging the engine computer can end up costing thousands to replace. To be safe, you should always disconnect the battery when you are working with anything electrical in the vehicle that could cause a spark or injury, like wiring, ignition work, airbags and the vehicle's computer. But there are a few more reasons why you would want to disconnect your car or truck battery. The obvious answer here is when you are replacing the battery. When Would I Need to Disconnect My Car Battery? Keep reading to learn the detailed steps of this process. While there are countless service centers and garages that will do this for you, it is always a good idea to learn how to do this yourself.

Everyone who owns a car or truck will need to replace their battery at one point or another.