The VMP750 is a powerful yet compact rail-mounted rechargeable pump that allows installers to focus on the task at hand without having to manually maintain vacuum pressure. Using an automated vacuum is faster, safer, and more convenient than manual pressure maintenance. The VMP750 pump features a built-in, rechargeable Lithium-ion battery that runs for up to 5 continuous hours on a single charge, and provides worry-free vacuum pressure for each rail in the system. An integrated LCD display shows the remaining power level, so you don’t have to wonder if the battery will last through another install.