Shorts for “Electro-Static Discharge.” is a sudden flow of static charge from one object with a higher to an object with a lower one when coming into contact. The term is often found in service manuals or repair guides to prevent you from unintended damaging your electronic devices.

Your body often picks up negative electrical charges when you walk on a carpet with socks or plastic shoes and other everyday activities. Those charges won’t harm you as a human, but they are a complete disaster for electronic components.

When performing the repairing procedure, you should use an ESD field kit, which includes an anti-static mat, an alligator clip, and an ESD wrist wrap. The field kit can help to ground yourself to prevent static charge build-up during repairs.

ESD Field Kit by iFixit

iFixit ESD Kit