Battery Pack GBA 18 V 2.0 Ah; The lightweight 18 volt Compact battery with 2.0 Ah and CoolPack technology; CoolPack technology for up to 100% longer lifetime (cf. battery without CoolPack); Light weight for even more comfortable work, especially in overhead applications; Bosch flexible power system – battery suitable for all tools in one voltage class; Extremely robust: fully functional even after a 3-m drop onto concrete; 1 x 2.0 Ah Li-Ion battery