Up to 90 min per charge w/ Manifold Mode; As fast as corded; Instant power, no hassle; 1/2”, 3/8” & 1/4” Ports; Up to 20% Higher Air Flow vs Corded; Check valve protects vacuum when pump isn’t running; Ball valve isolates the pump for easy battery changes; Gas ballast valve reduces frequency of oil changes; Evacuate without generators or temporary power; Saves time setting up and tearing down; Up to 60 min runtime in Default Mode; Large oil fill port eliminates funnels; Low battery light notifies audibly and visually of low battery