M12 12-Volt Lithium-Ion XC Battery Pack 4.0 Ah and Charger Starter Kit

Milwaukee REDLITHIUM batteries are the next generation in Lithium-Ion technology. Compatible with all products in the M12 Cordless tool system. REDLITHIUM battery packs will provide unmatched runtime . performance and durability for the professional tradesman. M12 REDLITHIUM 4.0 provides up to 2X more run-time . 20% more power and 2X more recharges than a standard Lithium-Ion battery. REDLITHIUM 4.0 also delivers best-in-class performance in extreme job-site conditions. With Milwaukee durability built-into each pack . the REDLITHIUM 4.0 battery operates cooler and performs in climates below minus 18��C/0��F with fade free power.