HIGH PERFORMANCE:  60 Volt Max* 4.0 Ah lithium-ion battery provides extended run time for heavy duty applications
INTELLIGENT POWER MANAGEMENT: Optimizes individual battery cells for maximum power, performance, and runtime
COMPATIBILITY:  Works with all X6 60 Volt Max* series of tools
CONVENIENCE:  Battery power indicator on battery shows the remaining charge
SHOCK RESISTANT DESIGN:  Helps protect battery against damages from accidental drops
CHARGE TIME:  Charges in 85 minutes or less
WARRANTY:  Limited 3 year warranty

*60 Volt Max battery, maximum initial battery voltage (measured without a workload) is 60 Volts.  Nominal voltage is 56 Volts.