A typical battery pack consists of a number of cylindrical cells connected together with nickel metal strips which are spot welded. This method provides a reliable low resistance connection without causing thermal stress to the cells.
In most cases, one of the connection tabs will consist of a PTC (Positive Temperature Coefficient) thermister, which is a self-resetting fuse providing short-circuit protection.
Many batteries are supplied as shrink wrap packs with flying leads. In these cases, the batteries will be contained within a product, providing extra protection against physical damage. Replacement batteries may be supplied as kits, including new O-ring seals etc.
User replaceable batteries are usually supplied in a sealed plastic moulding with built-in connections, for maximum protection against accidental damage or misuse.
All Sartech batteries are 100% tested and batch traceable.