Portable generators aren't just for emergency preparedness ... This model is available in a 15,000-watt option for those who want more power, as well as 4,650, 6,600, and 9,500-watt versions ...

The Predator 4550 Watt w ... Only some generators with this feature include the necessary battery, which must otherwise be purchased separately (usually about $50). For portable units, how many ...