This is a brand new replacement milwaukee 18 volt model 48-11-1840 M18 XC 4000mah red lithium battery.

This battery new technology Protected board support 100% Overcharge and overdischarge protection.overcurrent protection, temperature protection, short circuit protection, and anti-aging protection.

M18 18V 48-11-1840 provide 60% more running time.

Milwaukee M18 18V 48-11-1840 Lithium Ion 72 Wh Battery Pack for Power Tool.This is the High Capacity 18volt 4000mAh version,

This replacement Milwaukee RED LITHIUM battery same as the genuine batteries the next generation in Lithium-ion technology. Compatible with all products in the M18 Cordless tool system, RED LITHIUM battery packs will provide unmatched runtime, performance and durability for the professional tradesman. Managed by Milwaukee’s exclusive Digital Power Management (DPM) System, the battery features Overload Protection, a Temperature Management System, Individual Cell Voltage Monitoring, Discharge Protection and a Battery Fuel Gauge. Overload Protection - Prevents user from damaging their cordless power tool investment in abusive situations. Temperature Management System - Keeps battery in ideal temperature range to provide maximum life. Individual Cell Monitoring - Ensures optimal charge and discharge for maximum life. Discharge Protection - Prevents cell damage from over-discharge.

Works with Milwaukee M18 18V Lithium Tools.

In a nutshell, here are some of the advantages to using the exclusive Milwaukee Red-Link Plus Intelligence: *Better fail-safes between tool, battery and charger *More efficient overall for longer run-time *Protection against overheating *Longer lifespan of tool

Battery Features:

*On-board fuel gauge *Widest operating temperature *Individual cell monitoring *Progressive charge indication, *Advanced discharge control

Powers all Milwaukee M18 Tools.

Voltage: 18V

Capacity: 4.0Ah

Type: Lithium-Ion

1 year warranty