This versatile Metabo HPT UC18YFSL rapid battery charger can issue a full charge of multiple voltages. This compact charger features an easy to read LED display light that notifies the user of the status of the battery charge. This charger contains an LED light which indicates when the battery is fully charged, also shows if the battery is over-heating. The UC18YFSL charger also contains a USB terminal on the back that can charge mobile devices. The Metabo HPT UC18YFSL charger is compatible with slide-type battery models BSL1850 and BSL1860 (sold separately).