Seems like a very good deal.
Milwaukee M18 18-Volt Lithium-Ion HIGH OUTPUT XC 8.0Ah (2-Pack) and 6.0Ah Batteries (2-Pack) 48-11-1880-48-11-1880-48-11-1862 - The Home Depot
The MILWAUKEE® M18™ REDLITHIUM™ HIGH OUTPUT™ XC8.0 Battery Pack provides 50% more power and runs 50% cooler vs M18™ REDLITHIUM™ XC battery packs. The optimized combination of smaller size and increased
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