These battery powered hydraulic pumps have a lightweight, compact design with an integrated handle for maximum portability. They come with dual power selection and variable speed for preferred flow and precise control. The pumps include a manual 3/2 valve (advance/retract) for use with single-acting cylinders and tools and a heavy-duty 28 volt Lithium-Ion battery pack delivers constant fade-free power. You can immediately charge the pumps after use-a quick one hour charge. The pump model includes two 3,0 Ampères-hour battery packs and quick charger.