
The Milwaukee M18B4 is an 18V 4.0Ah lithium-ion battery featuring REDLITHIUM™ technology, designed for the M18™ cordless power tool system. Equipped with REDLINK™ Intelligence, it enables seamless communication between the tool, battery, and charger to deliver optimized performance, extended runtime, and overload protection. Its rugged construction and all-weather resilience ensure reliable power delivery even in demanding job site conditions.
| Model | M18B4 |
|---|---|
| Battery Platform | M18™ REDLITHIUM™ |
| Voltage (V) | 18 |
| Amp-Hours (Ah) | 4.0 |
| Weight (kg) | 0.7 |