What size wrench takes off a car battery?

The battery terminal cables are held fast around the battery terminals by nuts and bolts. This means you’ll need a crescent wrench, an adjustable wrench, vise pliers or a socket wrench. Select a 10mm (0.4 in) wrench or socket, as most car battery cables have this size nut attached.

What wrench do you need to change battery?

Use a socket wrench to loosen the nut on the black, or negative, terminal. Most ratchet and socket sets have a socket size that fits the bolt of a battery terminal.

What size is a battery terminal wrench?

OTC’s 5/16″ Battery Terminal Wrench is designed for use on GM side-terminal batteries or any 5/16 inch hex head battery bolt – perfect for the tight spaces often found under modern vehicle hoods.

What tools do I need to change a battery terminal?

Required Tools for this Car Battery Terminal Project

  1. Hacksaw.
  2. Pliers.
  3. Socket/ratchet set.
  4. Wire brush.
  5. Wrench set.

When disconnecting a car battery What leads first?

negative
When disconnecting the cables from the old battery, disconnect the negative first, then the positive. Connect the new battery in the reverse order, positive then negative.” When you are replacing your car battery, It isn’t always easy to remember the order in which to disconnect and reconnect the terminals.

Will any bolt work for battery terminal?

You can use just about any type of bolt as long as it has the same thread size and length. It doesn’t matter if you’re looking for stainless steel bolts or just regular old-fashioned ones. Either one will work just fine.

What size nut do I need for a battery terminal?

The most common battery bolt will have a nut of around 10 millimeters or 0.4 inches, a bolt length of 1.24 inches, and a bolt thread size of 5/16 inches.

Which battery terminal do you disconnect first?

Do you put the positive or negative terminal on First?

Positive
“Positive first, then negative. When disconnecting the cables from the old battery, disconnect the negative first, then the positive. Connect the new battery in the reverse order, positive then negative.”