Milwaukee M12 RedLithium XC 4 Ah Lithium-Ion Battery and Charger Starter Kit

The M12 Redlithium extended capacity battery pack 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. It offers 4.0 amp-hours of runtime. With Milwaukee durability built into each pack, this battery runs cooler and performs. The M12 Redlithium battery is fully compatible with all Milwaukee M12 solutions.