Description Upgrade to the Milwaukee M18⢠RedLithium⢠XC 5.0 Li-Ion Battery Pack to instantly increase the run time and durability of your M18 cordless tools. High-capacity M18 Lithium-ion batteries work on the Milwaukee M18 cordless tool system and power over 40 M18 cordless tools. Delivers up to 2.5 times more run time, 20% more power and 2 times more life than standard lithium-ion batteries. The M18 RedLithium XC 5.0 Extended Capacity battery pack features superior pack construction, electronics, and performance to deliver more work per charge and more work over the life of the pack than any battery on the market. The M18 RedLithium XC 5.0 battery features an advanced design, protecting the pack against harsh jobsite environments. This protection routes water away from the electronics and out of the battery pack, extends run time and life by minimizing heat, and prevents pack failures from vibration or drops. This unique Milwaukee design also allows the battery to operate in extreme cold weather conditions (below 0ÂF/â18ÂC). Managed by Milwaukee's exclusive Redlink Intelligence, the battery features overload protection to prevent you from damaging your M18 cordless power tools in heavy-duty situations, while the discharge protection prevents cell damage. 2-pack of batteries.PRODUCT DETAILUpgrading to Milwaukee M18⢠RedLithium⢠XC 5.0 Li-Ion batteries will instantly increase the run time and durability of your M18 cordless tools Delivers up to 2.5 times more run time, 20% more power and 2 times more life than standard lithium-ion batteries Redlink Intelligence provides optimized performance and overload protection Sturdy construction provides long-lasting performance and durability Fuel gauge displays remaining run time for less downtime on the job