Abstract: A power equipment system with a plurality of power equipment units each including a working tool. Each of the power equipment units may include provisions permitting independent connection with both a battery and an electric motor, wherein the battery and electric motor may be moved between different power equipment units as needed. In some embodiments, a first power equipment unit may provide an identity information signal of the associated working tool to a controller of either or both of the motor and the battery. The identity information may limit or control one or more operating parameters of the motor when the motor is installed on the first power equipment unit.