The ryobi rb 18l one43 18v batteries are ideal for the cost conscious user doing day to day diy tasks the ergonomics of this battery makes it lightweight whilst the tough pack design with overload protection give long term durability ryobis intelli cell individual cell monitoring maximises run time and performance this battery is compatible with both old current and new ryobi one43 tools giving you access to the use of over 40 garden and power tools