DeWalt DCB606-2, 20V MAX 6.0Ah Lithium-Ion Premium Battery, 2 Pack---priced and sold per pack

20V MAX* XR POWERSTACK Battery, Lithium-ion, 1.7 Ah, Includes 2-Batteries

20V MAX* XR POWERSTACK Battery, Lithium-ion, 5.0 Ah, Includes 2-Batteries

DEWALT Flexvolt 20V/60V Max Batteries, 9.0-Ah, 2-Pack

DeWalt 20V MAX Compact XR Lithium Ion, Type: 2.0 Ah high-capacity battery pack

Dewalt 20V/60V MAX* FLEXVOLT 9.0AH BATTERY, Sold per each