Battery-powered stand-alone motor unit

A stand-alone motor unit for use with a piece of power equipment, the motor unit comprising:

• a housing;
• an electric motor arranged in the housing;
• a battery pack to provide power to the electric motor;
• a first plurality of holes in a side of the housing, the first plurality of holes defining a first hole pattern;
• a first power take-off shaft extending from the side of the housing;
• and
• an external gearbox including
• a gear train configured to receive torque from the first power take-off shaft,
• a second plurality of holes defining a second hole pattern that is identical to the first hole pattern, such that the external gearbox is configured to be coupled to the side of the housing when the first hole pattern is aligned with the second hole pattern,
• a second power take-off shaft receiving torque from the gear train, and
• a third plurality of holes defining a third hole pattern that is identical to a fourth hole pattern on the piece of power equipment, such that the piece of power equipment is configured to be coupled to the external gearbox when the third hole pattern is aligned with the fourth hole pattern,
• wherein when the external gearbox is coupled to the side of the housing and the piece of power equipment, the second power take-off shaft is configured to receive torque from the motor via the first power take-off shaft and the gear train.

A stand-alone motor unit for use with a piece of power equipment, the motor unit comprising:

• a housing;
• an electric motor arranged in the housing;
• a battery pack to provide power to the electric motor;
• a first plurality of holes in a side of the housing, the first plurality of holes defining a first hole pattern;
• a gearbox including a first gear train configured to transfer torque from the motor;
• and
• an external gearbox including
• a second gear train configured to receive torque from the first gear train,
• a second plurality of holes defining a second hole pattern that is identical to the first hole pattern, such that the external gearbox is configured to be coupled to the side of the housing when the first hole pattern is aligned with the second hole pattern,
• a power take-off shaft receiving torque from the second gear train, and
• a third plurality of holes defining a third hole pattern that is identical to a fourth hole pattern on the piece of power equipment, such that the piece of power equipment is configured to be coupled to the external gearbox when the third hole pattern is aligned with the fourth hole pattern,
• wherein when the external gearbox is coupled to the side of the housing and the piece of power equipment, the power take-off shaft is configured to receive torque from the motor via the first gear train and the second gear train.