Milwaukee M18 18V batteries (48-11-1815, 48-11-1850) and chargers (2646-20, 2642-21CT) deliver industry-leading power with REDLITHIUM™ technology, offering 12.0Ah capacity (not 12800mAh – a common mislabeling) for extended runtime. These batteries feature advanced cooling systems, cross-tool compatibility, and rapid charging via …