Car Battery Positive Color. The chances of doing this are rather less if you connect the live battery posts together first. It is prudent to check the terminals of the battery if you dont know.
Car battery terminals will be marked and color-coded. Some positive battery posts are covered by a protective red cover while negative battery posts are protected by a black cover. Car battery corrosion is usually caused by hydrogen gas being released from the battery acid.
If one is red and the other any other color the red one should be positive.
The chances of doing this are rather less if you connect the live battery posts together first. Red for the positive and silver for the negative. So in normal negative earth vehicles connect first to the positive terminal of the flat battery then to the positive terminal of the good battery - so red lead first. This indicates the positive battery post.
