Delivers maximum runtime, maximum power and more recharges than standard lithium-ion batteries. The M12 REDLITHIUM-ION 4.0Ah 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 0F/-18C. Managed by MILWAUKEEs exclusive REDLINK PLUS 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.

Features:

• REDLINK PLUS Electronic Intelligence enables advanced communication between your batteries and tools, allowing for unmatched levels of performance, protection, and productivity.
• Fuel gauge onboard: Displays remaining runtime for less downtime on the job.
• Versatility: Powers all compatiable Milwaukee M12 cordless power tools.
• Best-in-class construction: offers long lasting performance and durability.

Includes:

• (1) M12 REDLITHIUM-ION 4.0Ah Battery [M12B4]
• (Not included) Charger