New, never used, Genuine, from Home Depot.

Milwaukee M18 HO XC6.0 batteries.

Sealed in plastic factory packaging, in single or double packs.

$80each battery, firm. 1pk = $80. 2pk = $160.

I'm losing money on them.

I've NEVER worn out a 6.0 HO or even seen one wear out at work, where we charge them multiple times a day for years.

With Milwaukee batteries, the M18 High Outputs use the way better 21700 battery cells in 6.0 HO and larger HOs. The 6.0 HO is like a supercharged 5.0, and the M18 5.0 is not even available in HO. They run drills, saws, vacuums, lights, so much better.

Milwauke states: "The M18™ REDLITHIUM™ HIGH OUTPUT™ XC6.0 Battery Pack provides 50% more power and runs 50% cooler vs M18™ REDLITHIUM™ XC battery packs. It delivers fade free power and runs substantially cooler through heavy applications, allowing tradesmen to push their cordless tools harder and longer than ever before. The M18™ REDLITHIUM™ HIGH OUTPUT™ XC6.0 provides increased power in extreme cold weather conditions (below 0F / -18C) and delivers more work per charge, driving corded replacement on the jobsite. The REDLITHIUM™ HIGH OUTPUT™ XC6.0 battery is fully compatible with 150+ M18™ solutions.