A battery pack comprising: a plurality of battery cells; a cell holder fixedly holding the plurality of battery cells relative to each other; a plurality of battery straps (622, 624), each strap of the plurality of battery straps having a first end coupled to at least one of the plurality of battery cells and a second end, opposed to the first end; a printed circuit board having a set of holes (861, 863) extending from a first side of the PCB to a second side of the PCB opposing the first side of the PCB, a first subset of the set of holes sized to receive the second end of the plurality of battery straps, a second subset of the set of holes including pairs of holes, the holes of each pair of holes positioned adjacent to and on opposing sides of a hole of the first subset of holes; an electrical trace on the first side of the PCB extending from one of the holes of each pair of holes to components mounted on the first side of the PCB; and a set of contacts, each contact of the set of contacts having a U-shaped body including a centre portion and at least one leg, each of the at least one legs integrally formed with one of the opposing ends of the centre portion providing a free end of each leg, the centre portion having a through-hole, the through-hole being sized to receive the second end of the plurality of battery straps; each contact of the set of contacts positioned such that the free end of each leg extends from the second side of the PCB to the first side of the PCB through a corresponding hole and the free end of each of the at least one leg is soldered to the electrical trace extending from the corresponding hole. a plurality of battery cells; a cell holder fixedly holding the plurality of battery cells relative to each other; a plurality of battery straps (622, 624), each strap of the plurality of battery straps having a first end coupled to at least one of the plurality of battery cells and a second end, opposed to the first end; a printed circuit board having a set of holes (861, 863) extending from a first side of the PCB to a second side of the PCB opposing the first side of the PCB, a first subset of the set of holes sized to receive the second end of the plurality of battery straps, a second subset of the set of holes including pairs of holes, the holes of each pair of holes positioned adjacent to and on opposing sides of a hole of the first subset of holes; an electrical trace on the first side of the PCB extending from one of the holes of each pair of holes to components mounted on the first side of the PCB; and a set of contacts, each contact of the set of contacts having a U-shaped body including a centre portion and at least one leg, each of the at least one legs integrally formed with one of the opposing ends of the centre portion providing a free end of each leg, the centre portion having a through-hole, the through-hole being sized to receive the second end of the plurality of battery straps; each contact of the set of contacts positioned such that the free end of each leg extends from the second side of the PCB to the first side of the PCB through a corresponding hole and the free end of each of the at least one leg is soldered to the electrical trace extending from the corresponding hole.