kb kobalt 80-volt max lithium ion 630-cfm brushless cordless electric leaf blower (battery included) runadi kobalt 80-volt cordless axial blower provides up to 75 minutes of runtime, on low setting, with a fully charged 2.5 ah battery (battery and charger included) kobalt 80v blower with 2.5 ah battery, our most powerful handheld blower produces up to 630 cfm and 140 mph to easily clear heavy dirt, debris and leaves from any surface high efficiency brushless motor engineered to provide more power, torque, quiet operation and longer motor life