New Boxed.Compatible with all 18v Power X-Change cordless tools.Can operate as a 5ah battery or an 8ah battery.Using in 8ah mode provides extended runtime to complete demanding tasks on a single charge.Switching to 5ah mode helps prolong the battery lifetime when long runtime is not needed.Exact display of the charge status in % via the digital display.Battery management system (ABS) for optimal battery monitoring.Low self-discharge and high, constant power.High impact protection and good grip thanks to rubberised housing.Housing protected against dust and corrosion.