My car battery and my tractor battery say the case is made of Polypropylene.
Cells in a normal car 12v battery are composed of lead and sulfuric acid.
a car battery is made of a plastic casing, lead plates and a sulfuric acid/water mixture
Today the outer bumper shell is made of plastic. The inner bumper is made of steel or alluminum.
the headlights are made from plastic
Wood will not accept any kind of electrical charge.
Lead, plastic, sulphuric acid, water,
Lead acid, wet cell.
Most battery terminals are made of lead.
The positive side of a car battery is red - look for red plastic cap or the "+" symbol on the plastic next to it. Also the positive post is slightly larger than the negative post.
The outside of a car is made of steel, aluminum, & plastic.
The energy stored in a car battery, or other cells or batteries, is chemical energy.
Plastic.