Abstract: An electronic shunt resistor assembly comprises a planar shunt resistor and an electronic monitoring unit. The planar shunt resistor has a resistance element and first and second terminal bars at opposite ends of the resistance element. The electronic measuring unit has a circuit board that is supported on the planar shunt resistor and that includes input contacts for electronic components carried by the circuit board arranged along one edge of the circuit board and input/output contacts for the electronic components arranged along a opposite edge of the circuit board. A first plurality of electrical connectors connect the first terminal bar to the input contacts and a second plurality of electrical connectors connect the second terminal bar to the output contacts of the circuit board. The electrical connectors are attached to the terminal bars and the contacts solderlessly.

Abstract: A jump start protection circuit having a normally open switch and a resistor positioned in parallel intermediate to a battery and a jump start post. A controller manipulates the switch between an open position and closed position, the closed position connects the jump start post to the battery and the open position disconnects the jump start post from the battery. The controller measures voltages at the battery and jump start post and is capable of receiving one or more additional inputs. The controller closes the switch when acceptable jump start conditions are detected. The controller can open the switch or maintain the switch in an open position. The jump start circuit provides protection against attempts to charge a battery with incorrect polarity connections and attempts to charge a battery from a potentially hazardous higher voltage power source.

Abstract: A jump start protection circuit having a normally open switch and a resistor positioned in parallel intermediate to a battery and a jump start post. A controller manipulates the switch between an open position and closed position, the closed position connects the jump start post to the battery and the open position disconnects the jump start post from the battery. The controller measures voltages at the battery and jump start post and is capable of receiving one or more additional inputs. The controller closes the switch when acceptable jump start conditions are detected. The controller can open the switch or maintain the switch in an open position. The jump start circuit provides protection against attempts to charge a battery with incorrect polarity connections and attempts to charge a battery from a potentially hazardous higher voltage power source.