Woot offers Milwaukee 48-11-1852 Milwaukee 48-11-1852 M18 REDLI for $99.99 (orig. $249). Free shipping for Prime Members.

Product Description:
Milwaukee 48-11-1852 M18 REDLITHIUM XC 5 Ah Lithium-Ion Extended Capacity Battery (2-Pack)

• Best-in-class construction: offers long-lasting performance and durability
• Voltage: 18V
• 20% more powerful and 2.5 times more operating time
• Compatible with over 60 M18 cordless tools
• You will receive the item exactly as pictured. Item does not include box.