I am installing larger batteries and the new position for them is just bejond the length of the Smart Shuts temperature cable , although only about 20cm short i dont want to extend it but the Busbar are within reach , the Shunt itself runs from the negative Busbar but can i use the Positive for the Temperature cable feeding it or does it have to be connected to the positive on the actual batteries . I need the temperature sensor for temperature compensation so its important that it works