Delivers maximum runtime, maximum power and more life than standard lithium-ion batteries. The M12 6.0Ah & 3.0Ah REDLITHIUM™ Batteries feature superior pack construction, electronics and performance to deliver more work per charge and more work over the life of the pack than any other batteries on the market. With MILWAUKEE® durability built into each pack, these batteries run cooler and perform in climates below 0°F/-18°C. Managed by MILWAUKEE®'s exclusive REDLINK™ Intelligence, the batteries feature overload protection to prevent you from damaging your cordless power tools in heavy-duty situations, while the discharge protection prevents cell damage. The temperature management system and individual cell monitoring help maximise battery life. Upgrade to the M12 6.0Ah & 3.0Ah REDLITHIUM™ Batteries to instantly increase the runtime and durability of your MILWAUKEE® M12™ cordless tools.