OEM Product: Genuine GREENWORKS Commercial Optimus 82v 36N Backpack Leaf Blower manufactured to original equipment specifications Battery Technology: Features innovative Core Tech Batteries with faster charging time and lighter weight design Performance: Delivers powerful air flow performance making it the strongest battery-powered leaf blowers available Temperature Management: Advanced system works with Core Tech Batteries to maintain optimal operating temperature for extended runtime Battery Compatibility: Core Tech Batteries are designed to work seamlessly with this specific backpack leaf blower model BB361-C5DP GREENWORKS (OEM) Optimus 82v 36N Backpack Leaf Blower Core530 DP Kit BB361-C5DP (CORE TECH Batteries) This blower is the strongest and most durable Battery Powered Leaf Blower. It has the Core Tech Batteries which charges in about 1/2 the time and is significantly lighter. The battery works with the unit to keep it at an optimal temperature leading to longer run times and longetivity of the batteries. Core Tech is a revolution in battery technology and changing the handheld enviroment.