Protection device for an electrical component

A protection device and a method for protecting an electrical component. The protection device has a protective housing (11) and a terminal cap. The protective housing (11) has a base (12) with a contact hole (55) therethrough for receiving an electrical terminal pin (49), and has a projecting shoulder (16) extending from the base to a first distance (19) from the base. The protective housing also has a retaining clip (22) extending from the base to a second distance (25) from the base, the second distance being greater than the first distance. The terminal cap (28) has a first side (31) and a second side (34), and in use, at least part of the first side of the terminal cap contacts the projecting shoulder (16) and at least part of the second side of the terminal cap contacts the retaining clip (22). A method according to the present invention includes steps for assembling a battery and an electrical component housed within the protection device described above.