How to properly and safely remove the terminals from the car battery?

  • Dec 14, 2020

The operation of the engine and auxiliary systems in the car is provided by the battery. Every car owner has situations in which it is necessary to remove the battery.

How to properly and safely remove the terminals from the car battery?

How to do it correctly and safely?

  1. In order to remove a car battery, you need to prepare a few rags, a wrench, rubber gloves.
  2. Before proceeding to dismantle the battery, you need to make sure that the car engine is turned off. Attempts to remove the terminals with the engine running may result in a breakdown of the vehicle's electrical system, an alarm malfunction. In this case, you will most likely not be able to fix the problem on your own, you will have to call a tow truck and send the car to a car service.
  3. It is necessary to turn off all electrical appliances in the car.
  4. In order to prevent possible chemical burns and electric shock, you must wear rubber gloves before removing the terminals of the car battery.
  5. The storage location of the battery should be determined in advance. The room in which you plan to store the car battery must be heated.
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  7. Use a wrench to carefully twist the terminals. You cannot try to pull them off by force.
  8. After removing the retainer and disconnecting the terminals, you need to carefully remove the battery.
  9. After removing the battery, it must not be turned over, put on its side.

It should be placed so that it does not fall. Shocks on the battery are also not permissible. Mechanical damage to the case will cause the battery to lose its tightness. A battery with traces of hydrochloric acid leakage must not be used.

Among car owners, the opinion is widespread that when removing the battery, first disconnect the negative terminal, and then the positive terminal. But auto mechanics reasonably say that there is no fundamental difference in the sequence of disconnecting the terminals from the battery.

At the same time, in my opinion, from the point of view of convenience and electrical safety, it is better to start dismantling a car battery with a minus. So, first you need to move the negative terminal to the side and fix it, and then proceed to disconnect the positive terminal. Following this rule minimizes the likelihood of a short circuit that could occur if the positive wire accidentally comes into contact with the negative wire or any metal part car.

In addition, special terminal caps can be used to prevent contact of the terminal with metal elements.

Thus, if you follow simple safety rules, each car owner will be able to independently dismantle the battery.