Milwaukee M18 Carry-On 3600W/1800W Power Supply

The M18 Carry-On 3600W / 1800W Power Supply (2845-20) is a jobsite-ready, cordless inverter power unit that turns up to four M18 batteries into 120 V AC power for demanding tools and sensitive electronics. With a pure sine wave inverter, it can produce 3600 watts starting and 1800 watts continuous power, allowing you to run 15A tools like table saws, compressors, or pipe threaders. The unit also supports simultaneous charging of your M18 battery packs when not in use. Noise-level is kept low (~66 dB), and the compact, emissions-free design makes it safe for indoor, underground, or confined-space use.

High Power Output

3600W surge / 1800W continuous pure sine wave inverter to handle demanding 15A tools reliably.

Works with any combination of (4) M18 batteries for flexible runtime and battery usage.

When not in output mode, the unit can charge M18 batteries at a standard 3A rate each.

Safe for sensitive electronics, ensuring stable, clean power.

Includes 120V AC (duplex), USB-A, and USB-C PD ports for both tools and devices.

Operates without fumes, ideal for indoor or underground jobsites; noise level approx. 66 dB.

Despite its power, the unit is designed to be jobsite portable, fitting in confined spaces, lifts, carts.

Secure your M18 packs against theft using padlockable battery bays (lock not included).

Model / SKU: 2845-20

Surge (Starting) Power: 3600 W

Continuous (Running) Power: 1800 W

Battery System: M18 (requires 4 batteries)

Output Type: 120 V AC duplex; USB-A; USB-C PD

Noise Level: ~66 dB

Length: 15.05 in (≈ 382 mm)

Width: 12.25 in (≈ 311 mm)

Height: 13.75 in (≈ 349 mm)

Weight (bare unit): 28.0 lb (≈ 12.7 kg)

Voltage Rating: 120 V AC

Warranty: 3 years