Part Description: 20V/60V MAX FLEXVOLT 9.0Ah Battery and Charger Kit. Power your 20V MAX and 60V MAX tools with this FLEXVOLT 20V/60V MAX 9.0Ah battery and charger. Featuring patented technology that automatically switches voltage when you change your tools, the FLEXVOLT 20V/60V MAX battery optimizes your performance on tough jobs. The FLEXVOLT 20V/60V MAX batteries offer an LED Status light to provide instant visibility to your battery's state of charge. Backwards Compatible: Use Flexvolt Batteries on both 20V MAX & 60V MAX Tools for longer run time Included: 8 Amp Fast Charger. Featuring an internal fan that helps prevent hot/cold pack delays Communicates live feedback about the batteries state of charge with the stage 1 and 2 LED format