Manual service disconnect with integrated precharge function

A manual service disconnect and pre-charge device provided as part of a battery circuit on an electric vehicle, said battery circuit including a battery, said device comprising:

• a rotatable body including a non-conductive handle, a conductive shaft and an alignment element;
• a housing including a top plate, a bottom plate and a side wall defining a chamber therein, said top and bottom plates each including a central opening and a slot;
• a first terminal provided within the housing;
• a second terminal provided outside of the housing;
• a third terminal provided outside of the housing;
• a first wire electrically coupled to the third terminal and the battery;
• a second wire electrically coupled to the second terminal;
• and
• a resistor electrically coupled to the first wire and the first terminal, wherein the rotatable body is operable to be inserted and rotated so that the conductive shaft is inserted into the opening in the top plate in an orientation so that the alignment element extends into the housing through the slot in the top plate to make electrical contact between the first terminal and a second terminal so that electrical current can flow between the first wire and the second wire through the resistor, and wherein the rotatable body is rotated so that the alignment element aligns with the slot in the bottom plate to allow the conductive shaft to make electrical contact between the second terminal and the third terminal so that electrical current flows directly between the first wire and the second wire.