Abstract: A battery monitoring system for monitoring a state of a battery assembly that includes a connection assembly for electrically coupling a controller to the battery assembly. The connection assembly includes a circuit board having an edge extending from a top surface to a bottom surface. The connection assembly also includes a plurality of terminals each having a first end electrically coupled to the circuit board and a second end electrically coupled to the battery assembly with the second end extending beyond the edge of the circuit board with the plurality of terminals each being resiliently biased against the battery assembly for accommodating relative movement between the battery assembly and said circuit board.