The Makita 191X65-8 40V 8.0Ah XGT BL4080F Battery is a high-performance battery that will suit the needs of industry professionals and DIY enthusiasts that rely on their cordless Makita power tools. What makes this special is the intelligent digital communication it has with the tool which ensures optimal performance. To ensure long life usage there is an in-built colling system and it has a IPX4 rated wet guard for water resistance. Using a DC40RA charger you will be able to reach a practical level of charge in just 60 minutes and a 4 green LED battery fuel gauge with check button will allow you to monitor the performance. Weighing only 1.9kg and having a compact design this battery will not cause issues when attached to a power tool and allow you to use them comfortably. This product is sold as a single unit. Features and Benefits: 4 green LED battery fuel gauge (green) with check button allows you to monitor performance Cooling system for maximum battery life With battery charge indicator Digital communication between battery and machine for optimal performance Active cooling system for maximum battery life Designed for machines commonly used in continuous operation Increased water and drop resistance thanks to more robust housing and three inner layers of protection