How To Remove Stuck Battery Terminal Bolt

Grasp the sides of the battery cable where it surrounds the terminal bolt.

How to remove stuck battery terminal bolt. A 10MM combo wrench can be had at most homedepot stores for 2 bucks. For side-post batteries simply remove the side posts and cables with an open-end wrench. You have to use a deep socket on those.

Title says it all Installing when weather is warm makes this process much easier since the rubber on the cable ends tends to be softer unless old and brittl. The truck would not start this morning I tested the battery and there was only 122 volt on the battery so i went to take out the battery to try recharging it then noticed the negative post was deformed enough to prevent me from getting the terminal off. Use a pair of pliers if needed to pull the clamp away from the battery post.

For the problem getting the clamp off of the battery terminal you can try using a pair of channel lock type pliers and twist it off. Also when you tighten up the bolt the clevis part of the clamp deforms usually putting the bolt into a bind. Once you get the nut off you should have the battery charged and tested.

But since you will need a new battery terminal anyway. Them found out the round end was too small for the bolt so i ended up putting it on the small side bolt anyway. Take care when working around the battery and try not to cut the battery or terminal post.

A four pound or larger hammer will break the top off your battery. Cant say I have had the battery out of mine yet but if it is a standard top post battery the clamp probably needs to be spread a bit. Inspect the battery to determine if the batterys.

The threaded piece sticks out too far for most. Such as hacksawing sideways through the terminal between the corroded nut and the clamp around the post. I took off the positive terminal for now.