A wheel chair drive apparatus includes a frame having a wheel mount, a battery mount, and a control shaft mount. A drive wheel has a drive motor incorporated within the drive wheel. A battery is in operative communication with the drive motor via a detachable jack. A battery housing is dimensioned to mount in the battery mount of the frame and has a handle. A control shaft pivotably mounted on the control shaft mount, so that it has a stow position, and operating position, a user entry position and a table use position. A caster lever is pivotably mounted to the frame, so that it has a rolling position and an engaged position. The caster lever is disposed to engage a receiving seat on a wheel chair. A locking lever is releasably biased toward a position locking the caster lever in the engaged position.