Lowes offers DeWalt 20V MAX XR Powerstack Lithium Ion Battery 2-Pack for $119 (reg $219) with free shipping.

Product Description:
The 20V MAX* XR® POWERSTACK™ Compact Battery delivers 50% more power** and a longer lifespan**. Engineered with pouch cell technology, our best performing 20V MAX* compact battery† powers through tough jobs, day in and day out. XR® POWERSTACK™ batteries are a part of our best performing line of 20V MAX* batteries† and are compatible with 20V MAX* tools.

• 50% more power** - Tackle tough jobs with 50% more power
• Longer lifespan** - Help maximize longevity day in and day out with these batteries that deliver an increase of charge cycles over the lifetime of the batteries
• Compact size‡ - Work in tight spaces with an ergonomic design that enhances maneuverability without sacrificing power
• Resists wear-and-tear - Take on the elements with a durable, overmolded base designed to provide a high level of impact resistance
• State-of-charge - Get quick visibility to your batteries' state-of-charge with the LED indicator to help avoid interruptions
• Part of our best performing line of 20V MAX* batteries†† - Innovative battery technologies designed to deliver certainty for the world’s toughest pros
• Includes: (2) DCBP034 20V MAX* XR POWERSTACK™ Compact Batteries