Milwaukee's 4V M4 2.0 Ah RedLithium-Ion cordless tool battery on the new M4 platform offers up to 50% more runtime. Ergonomic, compact, and lightweight, the 48-11-2001 is Milwaukee's innovative solution for users looking for more power, productivity and portability. For Use with Milwaukee M4 Tools.
• Compact 4V 2.0 Ah battery
• Up to 50% longer run-time with no memory effect
• Compatible with Milwaukee M4 products
• M4 4V 2Ah RedLithium Lithium-Ion Battery - 48-11-2001