GBA 18V 4.0AH PROFESSIONAL BATTERY PACK

The high-endurance 18 volt XL battery with 4.0 Ah and COOLPACK technology
Up to 65% longer runtime (cf. with 3.0 Ah battery)
COOLPACK 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 tools