The 18V / 2.5 Ah Battery with innovative Real Time Technology, is suitable for use in all devices using the Kärcher 18V battery power platform. With a integrated LCD display, the 18v battery communicates the remaining running time, remaining charging time & state of charge, depending on which device you are using. With a splash & shock resistant design, this 18V battery is designed to be used outside & on-the-go, whilst the intelligent cell monitoring protects the battery from over heating. Charger not included.