Universal usability for all Power X-Change rechargeable batteries Saving money, protecting the environment, and flexibility Continuously parallel charging of two batteries ensures fast, high availability + continuous working Carrying handle for easy, effortless transport of 4 batteries Suitable for mobile usage due to it's low weight 4x battery slots combined with only 1x socket saves space at worksite and at jobsite 4-Amp fast-charging technology ensures shorter charging times Permanent battery monitoring for optimum charging Refresh mode allows deeply discharged batteries to be reactivated Maximum safety due to intelligent charge management Current information per battery on 6-stage status LED display