1. Yamaha EF2400ISHC.
The Yamaha EF2400ISHC delivers 2400 watts of portable power, with easy access to both DC and AC outlets, and though it’s a touch heavy at 75 pounds, twin handles make it easy to move. It runs for more than eight hours one tank of gas; an at-a-glance fuel gauge lets you know how much is left in the tank. An aluminum die-cast frame (combined with an aluminum TIC rotor) makes the device durable, and though it puts out some serious power, the engine speed at full load runs at only 34,000 revolutions per minute, so you won’t have to scream over the engine noise.