The high-endurance 18 volt XL battery with 6.0 Ah and COOLPACK technologyA further 20% increase in runtime (compared to 5.0 Ah battery) at the same sizeCOOLPACK technology for up to 100% longer lifetime (cf. battery without COOLPACK)Professional 18V System: These batteries and charger can be used for all your Bosch 18V toolsTechnical data Batter...