The dual-voltage 20 V/60 V Max Flexvolt® 9 Ah battery automatically changes voltage when you change tools, providing up to 6X runtime in 20 V Max tools and the power of corded in 60 V Max and 120 V Max tools. Take on tough jobs with this battery because patented technology and large format cells mean it runs cooler than the leading competitor 9 Ah battery pack under a constant discharge. This is the battery for Flexvolt® power and long runtime.

• Dual-voltage for ultimate flexibility
• Silicone encapsulated module helps to keep dust and debris out
• LED charge status display on battery
• 180 W-hr of energy in each battery pack
• Operates in outside temperatures down to 0 deg F
• Runs cooler than leading competitor 9 Ah battery for better efficiency
• 6X runtime when used in a 20 V MAX tools