The Milwaukee M18 system is one of the most straightforward in terms of compatibility: all M18 batteries work with all M18 tools and chargers. This policy is stated clearly by Milwaukee and covers all generations of M18 REDLITHIUM batteries.
TL;DR
- All M18 batteries are compatible with all M18 tools and chargers — universally confirmed by Milwaukee.
- M18 batteries do NOT work in M12 tools (different voltage and connector).
- All generations of M18 REDLITHIUM batteries are cross-compatible within M18.
- M18 and M12 Multi-Voltage Charger can charge both M18 and M12 batteries.
- Confirmed by the official Milwaukee M18 Batteries & Chargers FAQ page.
Compatibility Rules
Milwaukee’s official FAQ states: “All M18 batteries are compatible with M18 tools and chargers.” This covers the full range of M18 REDLITHIUM batteries — CP (Compact), XC (Extended Capacity), HD (High Demand), and REDLITHIUM FORGE — across all 275+ M18 solutions. REDLINK Intelligence in both tools and batteries ensures safe, optimised performance across all combinations.
What It Is NOT Compatible With
| Platform | Compatible? | Notes |
|---|---|---|
| Milwaukee M18 tools | ✅ Yes | Universal — all M18 batteries, all M18 tools |
| Milwaukee M18 chargers | ✅ Yes | All M18 chargers accept all M18 batteries |
| Milwaukee M12 | ❌ No | Different voltage and connector |
| Milwaukee MX FUEL | ❌ No | Different platform for large equipment |
Recommended Batteries
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Charger Notes
All standard M18 chargers (M18C, M18, MXC) will charge any M18 battery. The Milwaukee Multi-Voltage Charger is a convenient option if you also own M12 tools — it accepts both M18 and M12 batteries. For fastest charging, use Milwaukee’s rapid charger options.
Sources
- Milwaukee Tool — M18 Batteries & Chargers (All M18 batteries compatible with M18 tools) (Manufacturer)
- Milwaukee Tool UK — M18 Batteries Page (Manufacturer)
Compatible Tools List
Milwaukee’s M18 platform is one of the most comprehensive cordless systems on the market with over 200 tools. All M18 batteries (48-11-1815, 48-11-1820, 48-11-1828, 48-11-1840, 48-11-1850, 48-11-1860, 48-11-1862, and FORGE variants) are compatible across the entire M18 system including M18 FUEL (brushless) and standard M18 tools.
Drilling & Driving
| Tool | Model Number | Notes |
|---|---|---|
| Hammer Drill/Driver 1/2″ | 2804-20 | M18 FUEL brushless, 1,200 in·lbs |
| Compact Hammer Drill/Driver 1/2″ | 2904-20 | M18 FUEL compact brushless |
| Drill/Driver 1/2″ | 2801-20 | Standard M18, 2-speed |
| Right Angle Drill 3/8″ | 2615-20 | Right angle drill 18V |
| Super HAWG Right Angle Drill 7/16″ | 2709-20 | High-power right angle |
| Hole HAWG Right Angle Drill 1/2″ | 2707-20 | D-handle, 450 in·lbs |
| Impact Driver 1/4″ Hex | 2850-20 | Standard M18 impact driver |
| Impact Driver 1/4″ Hex (FUEL) | 2853-20 | M18 FUEL brushless |
| High-Torque Impact Wrench 1/2″ (FUEL) | 2767-20 | 1,400 ft·lbs (xtreme) |
| Mid-Torque Impact Wrench 1/2″ (FUEL) | 2863-20 | 650 ft·lbs, ONE-KEY |
| Mid-Torque Impact Wrench 3/8″ (FUEL) | 2960-20 | GEN-2, 3/8″ drive |
| Impact Wrench 1/2″ (FUEL) | 2962-20 | GEN-2, friction ring |
| Impact Wrench 3/4″ (FUEL) | 2864-20 | 1,100 ft·lbs high-torque |
| Impact Wrench 1″ (FUEL) | 2868-20 | 1,800 ft·lbs, 1″ drive |
| Ratchet 3/8″ (FUEL) | 2557-20 | 250 ft·lbs, 250 RPM |
| Ratchet 1/2″ (FUEL) | 2558-20 | 300 ft·lbs, M18 FUEL |
| Auto-Feed Screw System | 6841-20 | Collated screw driving |
Saws
| Tool | Model Number | Notes |
|---|---|---|
| Circular Saw 6-1/2″ (FUEL) | 2730-20 | 18V brushless, 5,800 RPM |
| Circular Saw 7-1/4″ (FUEL) | 2732-20 | Brushless, 5,800 RPM |
| Circular Saw 7-1/4″ FUEL (Rear Handle) | 2830-20 | Rear handle, 5,800 RPM |
| Track Saw 6-1/2″ (FUEL) | 2831-20 | M18 FUEL, for guide rail |
| Miter Saw 7-1/4″ (FUEL) | 2733-20 | Brushless, 5,000 RPM |
| Miter Saw 10″ (FUEL) | 2734-20 | 10″ dual bevel sliding |
| Table Saw 8-1/4″ (FUEL) | 2736-21HD | 8-1/4″ table saw |
| Reciprocating Saw Sawzall | 2620-20 | Standard M18, 0–3,000 SPM |
| Reciprocating Saw Sawzall (FUEL) | 2720-20 | FUEL brushless |
| Compact Reciprocating Saw Hackzall | 2625-20 | One-hand Hackzall |
| Jig Saw (FUEL) | 2737-20 | M18 FUEL brushless jig saw |
| Band Saw 3-1/4″ Compact (FUEL) | 2829-20 | Deep cut compact band saw |
| Metal-Cutting Circular Saw 5-3/8″ | 2782-20 | 14″ abrasive/diamond blade |
Grinding & Cutting
| Tool | Model Number | Notes |
|---|---|---|
| Angle Grinder 4-1/2″/5″ (FUEL) | 2780-20 | M18 FUEL, 9,000 RPM |
| Angle Grinder 4-1/2″/5″ Slide (FUEL) | 2881-20 | Slide switch, lock-on |
| Cut-Off Saw 9″ (FUEL) | 2786-20 | 6″ M18 FUEL |
| Die Grinder 1/4″ (FUEL) | 2784-20 | Inline die grinder |
| Oscillating Multi-Tool (FUEL) | 2836-20 | StarlockMax brushless |
Rotary Hammers & Demolition
| Tool | Model Number | Notes |
|---|---|---|
| SDS-Plus Rotary Hammer 5/8″ | 2612-20 | M18 standard, 3-mode |
| SDS-Plus Rotary Hammer 1″ (FUEL) | 2712-20 | M18 FUEL brushless |
| SDS-Plus Rotary Hammer 1-1/8″ (FUEL) | 2715-20 | Brushless AVT |
| SDS-Max Rotary Hammer 1-9/16″ (FUEL) | 2717-20 | SDS-Max M18 FUEL |
| SDS-Max Rotary Hammer 1-3/4″ (FUEL) | 2718-20 | Heavy SDS-Max |
| Chipping Hammer SDS-Max | 2719-20 | SDS-Max demolition only |
Nailers & Staplers
| Tool | Model Number | Notes |
|---|---|---|
| Framing Nailer 21° (FUEL) | 2744-20 | 21° plastic collated |
| Framing Nailer 30° (FUEL) | 2745-20 | 30° paper collated |
| Finish Nailer 15ga Angled (FUEL) | 2740-20 | 15ga angled finish nailer |
| Finish Nailer 16ga Straight (FUEL) | 2741-20 | 16ga straight magazine |
| Brad Nailer 18ga (FUEL) | 2746-20 | 18ga brad nailer |
| Pin Nailer 23ga (FUEL) | 2748-20 | 23ga headless pinner |
| Crown Stapler 18ga (FUEL) | 2749-20 | 18gj narrow crown |
| Roofing Nailer (FUEL) | 2760-20 | Coil roofing nailer |
Outdoor Power Equipment
| Tool | Model Number | Notes |
|---|---|---|
| String Trimmer (FUEL) | 2825-20 | 15″ brushless trimmer |
| Hedge Trimmer 24″ (FUEL) | 2726-20 | 18″ dual blade brushless |
| Blower (FUEL) | 2724-20 | Up to 160 MPH, 450 CHM |
| Chainsaw 16″ (FUEL) | 2727-20 | 16″ bar and chain |
| Lawn Mower 21″ (FUEL) | 2823-20 | 21″ self-propelled |
Finishing
| Tool | Model Number | Notes |
|---|---|---|
| Random Orbit Sander 5″ (FUEL) | 2648-20 | FUEL brushless, 12,000 OPM |
| Router 1-3/4 HP (FUEL) | 2838-20 | M18 FUEL brushless router |
| Planer 3-1/4″ (FUEL) | 2623-20 | Brushless 16,500 RPM |
Lighting, Vacuums & Other
| Tool | Model Number | Notes |
|---|---|---|
| Air Compressor 2-Gallon | 2840-20 | Dual-head LED site light |
| Compact Vacuum | 0882-20 | Pivoting Rover flood light |
| Bluetooth Radio | 2890-20 | AM/FM, Bluetooth, USB |
| Wireless Jobsite Speaker | 2891-20 | Packout mount radio |
| Wet/Dry Vacuum 6 Gallon | 0910-20 | 6 gallon wet/dry |
| Grease Gun (FUEL) | 2646-20 | Cordless grease gun |
| Inflator (FUEL) | 2848-20 | Digital inflator |
| Press Tool (FUEL) | 2773-20 | ProPEX/Press tool |
Model numbers listed reflect common US and international variants. Product availability varies by region. Always verify compatibility with your specific battery model before purchase. For the most current and complete product range, visit the manufacturer’s official website.
Where to Buy Milwaukee Batteries
You can find the full range of Milwaukee batteries, tools, and chargers on Amazon UK:
Buy Milwaukee M18 Batteries on Amazon
Buy Milwaukee M18 Tools on Amazon
Buy Milwaukee M18 Chargers on Amazon
Frequently Asked Questions
Related Guides
- Milwaukee M12 Battery Compatibility
- Makita vs DeWalt vs Milwaukee: Battery Platform Comparison
- Milwaukee M18 Charger Compatibility Guide
- Milwaukee FORGE Battery: Worth the Upgrade?
- Can You Use Milwaukee Batteries in DeWalt?
- Power Tool Battery Warranty Guide by Brand
- Power Tool Battery Glossary: Ah, V, Wh Explained
Are all Milwaukee M18 batteries the same?
All M18 batteries share the same physical connection, but they differ in capacity, cell quality, and performance tier. Standard REDLITHIUM batteries are good for basic tools. HIGH OUTPUT batteries deliver more sustained power for FUEL tools. FORGE batteries are the newest premium tier with the best performance and cycle life.
What M18 battery lasts the longest?
The 48-11-1880 (8.0Ah HIGH OUTPUT) provides the most runtime in the standard M18 form factor. For absolute maximum capacity, the M18 12.0Ah battery (48-11-1812) exists but is physically larger and heavier. For most users, the 6.0Ah HIGH OUTPUT is the practical sweet spot for runtime and handling.
How many Milwaukee M18 tools exist?
Milwaukee offers over 250 tools in the M18 platform, with approximately 30-40 new additions annually. The range covers every trade — carpentry, electrical, plumbing, HVAC, concrete, metalworking, automotive, and outdoor maintenance. Milwaukee is particularly strong in professional and industrial categories.
Model numbers listed reflect common US and international variants. Product availability varies by region. Always verify compatibility with your specific battery model before purchase. For the most current and complete product range, visit the manufacturer’s official website.