Product Review With 3,500 running watts and 4800 watts of reliable electric power, the Briggs & Stratton 3500-Watt 6.5 HP portable generator is covered when the network is down. Powered by a Briggs & Stratton 6.5 HP OHV engine is designed to give more life, running in the longer term and reduce noise, this portable generator offers up to 12 hours of battery life when used at half of its capacity. Briggs & Stratton generators are built for performance. See the function generator in greater detail. See product specifications. A 6.5 HP Briggs & Stratton Intek OHV engine offers more torque when you need it. Watch the video on Briggs & Stratton pair of power. Five conv