Milwaukee sells chargers for its M18 and M12 batteries, from single multi-voltage chargers to multi-bay Super Chargers, some built for PACKOUT storage. Milwaukee’s pages say its M18 chargers accept all M18 batteries, including HIGH OUTPUT and FORGE packs, but only some also take M12 packs, and charging speed varies. This guide uses Milwaukee’s US model numbers.
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Quick Compatibility Rule
Milwaukee’s M18 charger pages say they accept all M18 batteries, and its US page for the FORGE XC6.0 says the pack works with all M18 chargers. M12 packs need a charger Milwaukee lists for M12, such as the 48-59-1812, 48-59-1808, 48-59-1811 or 48-59-1810.
Milwaukee M18 Charger Comparison
| Charger Model | Type | Bays | M18 | M12 | Approx. Time (5 Ah M18) | Key Feature |
|---|---|---|---|---|---|---|
| 48-59-1812 | M18 & M12 Multi-Voltage | Not stated | ✅ | ✅ | 60 min (Milwaukee: extended capacity packs) | 3.0 A output; compact packs in 30 min |
| 48-59-1808 | M18 & M12 Rapid | Not stated | ✅ | ✅ | Not stated | Up to 40% faster (Milwaukee) |
| 48-59-1802 | M18 Dual Bay Simultaneous Rapid | 2 | ✅ | Not listed | Not stated | Over 3X faster than standard sequential chargers (Milwaukee) |
| 48-59-1811 | M18 & M12 Super Charger | Not stated | ✅ | ✅ | Not stated | Up to 4X faster; HD12.0 fully charged in 1 hour |
| 48-59-1815 | M18 Dual Bay Simultaneous Super Charger | 2 | ✅ | Not listed | Not stated | FORGE XC6.0 to 80% in 15 min; FORGE XC8.0 or HD12.0 to 80% in 35 min |
| 48-59-1818 | M18 & M12 Four Bay Simultaneous Super Charger (PACKOUT) | 4 (2 M18 + 2 M18/M12) | ✅ | ✅ (hybrid bays) | Not stated | 4 FORGE HD12.0 to 100% in 90 min |
| 48-59-1809 | M18 PACKOUT Six Bay Rapid Charger | 6 | ✅ | Not listed | Not stated | Charges 2 at a time; six XC5.0 in 3 hours; USB-C port |
| 48-59-1810 | M18 / M12 Vehicle Charger | Not stated | ✅ | ✅ | Not stated | Runs from a 12V or 24V DC vehicle outlet |
Genuine batteries, chargers and kits for this platform
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Which batteries fit which tools — cross-brand, adapters & Ah, decoded.
Which Batteries Work With Which Chargers?
| Battery Type | All M18 Chargers | Notes |
|---|---|---|
| M18 CP (1.5–2.0 Ah) | ✅ | Milwaukee chart: CP2.0 27 / 27 / 42 min (Super / Rapid / Standard charger) |
| M18 XC (3.0–5.0 Ah) | ✅ | XC5.0 60 / 60 / 105 min |
| M18 HIGH OUTPUT CP3.0 | ✅ | 35 / 35 / 65 min |
| M18 HIGH OUTPUT XC (6.0–8.0 Ah) | ✅ | XC6.0 35 / 65 / 123 min; XC8.0 45 / 83 / 162 min |
| M18 HIGH OUTPUT HD12.0 | ✅ | 60 / 130 / 241 min |
| M18 FORGE XC6.0 | ✅ | 25 / 62 / 115 min; Milwaukee: works with all M18 chargers |
| M18 FORGE HD12.0 | ✅ | Four Bay Super Charger: 4 packs to 100% in 90 min |
| M12 batteries | Only on M12/M18 chargers | 48-59-1812, 1808, 1811, 1810 and the hybrid bays of the 1818 |
Which Charger Should You Buy?
| Situation | Recommended Charger | Why |
|---|---|---|
| Casual / weekend use | 48-59-1812 | M18 & M12 Multi-Voltage; extended capacity packs in 60 min (Milwaukee) |
| Regular pro use, 2–3 batteries | 48-59-1802 | Two M18 bays charging at the same time; over 3X faster than standard sequential chargers (Milwaukee) |
| Heavy pro use, FORGE batteries | 48-59-1815 | FORGE XC6.0 to 80% in 15 min (Milwaukee) |
| Crew / fleet management | 48-59-1818 | PACKOUT; 2 M18 + 2 M18/M12 hybrid bays; 4 FORGE HD12.0 to 100% in 90 min |
| Mobile / van-based work | 48-59-1810 | Runs from a 12V or 24V DC vehicle outlet |
Common Questions
Will a Super Charger damage my standard M18 battery?
Milwaukee says the 48-59-1815 Dual Bay Super Charger is compatible with all M18 batteries. Its US manuals give a recommended charging range of 5°C to 40°C, and a charger waits when a pack is too hot or too cold. We have no Milwaukee figure for battery wear from faster charging.
Can I charge M12 batteries on an M18 charger?
On some chargers. Milwaukee lists the 48-59-1812, 48-59-1808, 48-59-1811 and 48-59-1810 as M18 and M12 chargers, and the 48-59-1818 has two M18/M12 hybrid bays. The 48-59-1802 and 48-59-1815 dual-bay chargers and the 48-59-1809 six-bay charger are listed for M18 batteries only.
Do FORGE batteries need a special charger?
No. Milwaukee’s US page for the FORGE XC6.0 says it works with all M18 chargers. It charges fastest on the Dual Bay Super Charger (48-59-1815): Milwaukee gives 15 minutes to 80% for the FORGE XC6.0 and 35 minutes to 80% for the FORGE XC8.0 or HIGH OUTPUT HD12.0.
Related Guides
- Every Milwaukee M18 Battery Compared
- Every Milwaukee M18 Tool and Which Batteries Fit
- Milwaukee FORGE Battery Guide
- Milwaukee M18 vs M18 FUEL
- How Long Do Power Tool Batteries Last?
Video Guide
Charging Best Practices
Milwaukee’s manuals and UK guidance include the following.
Temperature: Milwaukee’s US manuals give a recommended charging range of 5°C to 40°C (40°F to 104°F). When a pack is too hot or too cold, the 48-59-1808 shows a fast flashing red light and waits until the pack and charger reach charging temperature.
Storage: Milwaukee UK advises storing lithium-ion batteries in a cool, dry, well-ventilated area between 5°C and 20°C, ideally around 40–60% charged.
Troubleshooting Charger Issues
Flashing red and green: damaged or faulty battery pack and/or charger (48-59-1808 manual); contact a Milwaukee service facility.
Continuous red: charging. Slow flashing green means approaching full charge, and continuous green means charging is complete (48-59-1808 manual).
Fast flashing red: the battery and/or charger is too hot or cold; charging begins when they reach the correct temperature. Slow flashing red: the pack is waiting until the first pack is fully charged (48-59-1808 manual).
Can Milwaukee M18 chargers charge M12 batteries?
On some chargers. Milwaukee lists the 48-59-1812, 48-59-1808, 48-59-1811 and 48-59-1810 as M18 and M12 chargers, and the 48-59-1818 has two M18/M12 hybrid bays. The 48-59-1802 and 48-59-1815 dual-bay chargers and the 48-59-1809 six-bay charger are listed for M18 batteries only.
What is the fastest Milwaukee M18 charger?
Milwaukee’s fastest figures are for its Super Chargers. The 48-59-1811 M18 & M12 Super Charger is up to 4X faster and fully charges an HD12.0 in 1 hour (Milwaukee), and the 48-59-1815 Dual Bay Super Charger takes a FORGE XC6.0 to 80% in 15 minutes. The 48-59-1807 is a Rapid Charge Station, not a Super Charger.
Does fast charging damage Milwaukee batteries?
We have no Milwaukee figure for battery wear from fast charging. Milwaukee says its Dual Bay Super Charger is compatible with all M18 batteries, and its manuals say charging waits when a pack is too hot or too cold.
Can I use a Milwaukee charger with third-party M18 batteries?
Milwaukee’s charger manual says to charge only MILWAUKEE M18 and M12 Li-Ion batteries in its Li-Ion charger, and that other types of batteries may cause personal injury and damage.
Frequently Asked Questions
Always use the charger specified for your battery platform. Using incorrect chargers can damage cells and create safety hazards, and damage from it may not be covered by the maker’s guarantee.
Are all Milwaukee M18 chargers compatible with all M18 batteries?
Milwaukee’s pages for its M18 chargers say they accept all M18 batteries, including HIGH OUTPUT and FORGE packs, and the US FORGE XC6.0 page says it works with all M18 chargers. Charge times vary by battery and charger.
Can I charge M12 batteries on an M18 charger?
On some chargers. Milwaukee lists the 48-59-1812, 48-59-1808, 48-59-1811 and 48-59-1810 as M18 and M12 chargers, and the 48-59-1818 has two M18/M12 hybrid bays. The 48-59-1802 and 48-59-1815 dual-bay chargers and the 48-59-1809 six-bay charger are listed for M18 batteries only.
How long does it take to charge a Milwaukee M18 5.0Ah battery?
Milwaukee’s US charge-time chart gives 60 minutes for an XC5.0 on its Super and Rapid chargers and 105 minutes on a standard charger. UK figures differ by charger, for example 59 minutes for a 5.0 Ah pack on the M18 DFC.
How we compile this guide
We cross-reference compatibility details against manufacturer specifications where available, official tool manuals, and the physical standards that govern fitment (bore sizes, arbor diameters, voltage platforms, connector types). We prioritise primary sources over retailer listings, flag anything we can’t confirm, and re-verify the data on a regular cycle. Where we give a buying recommendation, we tell you the reasoning — not just the link. More on our method →
