Hydraulic jack having a DC power supply

A hydraulic jack comprising:

• a housing defined by sides and ends and including a lift portion and a power supply portion, the power supply portion configured to removably receive a power supply, the power supply portion including a power supply interface having a power supply mount configured to slidably receive the power supply on one of the sides of the housing;
• a clamp at least partially surrounding the power supply mount and coupling the power supply mount to the housing;
• a reservoir supported in the housing and configured to store hydraulic fluid;
• a motor supported in the housing and configured to receive power from the power supply;
• a pump assembly configured to receive a rotational output from the motor to generate a flow of hydraulic fluid from the reservoir;
• and
• a lift assembly at least partially supported in the lift portion and extendable between a retracted position and an extended position in response to the flow of hydraulic fluid, the lift assembly configured as a multi-stage lift assembly having a first stage and a second stage, and the first stage extendable from the second stage in a first manner.