Milwaukee M18B4 18V M18 4.0Ah Battery

Delivers maximum runtime, maximum power and more recharges than standard lithium-ion batteries. The M18™ REDLITHIUM™ 4.0 Ah Battery features superior pack construction, electronics and performance to deliver more work per charge and more work over pack life than any battery on the market. With Milwaukee® durability built into each pack, this battery runs cooler and performs in climates below 0 deg F/-18 deg C. Managed by Milwaukee®’s exclusive REDLINK Intelligence, the battery features 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. Switch to the M18™ REDLITHIUM™ 4.0 Ah Battery to instantly upgrade the runtime and durability of your Milwaukee® M18™ cordless tools.