The battery packs are charged up to 4x faster than with an entry level charger Patented "AIR COOLED" charging technology for short charging times thanks to cooling the battery pack during the charging cycle Optimal communication between battery pack and charger for maximum service life of the battery packs Many brands, one battery pack system: charger for charging all battery packs of the CAS brands With this principle, a higher tool life of the battery packs and up to 30% shorter total charging time can be achieved., Weight: 1.5652820602 Pounds, Manufacturer: Metabo