The Milwaukee 48-59-1812 is Milwaukee’s US M18 & M12 Multi-Voltage Charger. Milwaukee says it accepts all M18 and M12 batteries and charges them one at a time (sequentially), with compact packs in about 30 minutes and extended-capacity packs in about 60 minutes. Its manual gives a 3.0 A output. Milwaukee calls the 48-59-1808, not this model, its Rapid Charger.
48-59-1812 Specifications
| Specification | Value |
|---|---|
| Part Number | 48-59-1812 |
| Compatible Platform | Milwaukee M18 and M12 |
| Charging | M18 and M12 packs, one at a time; 3.0 A output (manual) |
| Input | 120 V AC (US model, per the manual); check the rating plate before use |
| Charge Time — compact (CP) packs | about 30 min (Milwaukee US) |
| Charge Time — extended-capacity (XC) packs | about 60 min (Milwaukee US) |
| LED Indicator | Yes (see the manual for the light meanings) |
| REDLINK Intelligence | Not confirmed in our Milwaukee sources |
| Weight | Not confirmed in our Milwaukee sources |
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Battery Compatibility
Milwaukee says the 48-59-1812 accepts all M18 and M12 batteries; see our Milwaukee M18 platform guide. Milwaukee gives about 30 minutes for compact packs and 60 minutes for extended-capacity packs; it does not list per-pack times for this charger.
| Battery Model | Capacity | Approx. Charge Time (48-59-1812) |
|---|---|---|
| 48-11-1820 | 2.0 Ah (CP2.0) | about 30 min (compact) |
| 48-11-1828 | Not confirmed | Not confirmed |
| 48-11-1840 | 4.0 Ah (XC) | about 60 min (XC) |
| 48-11-1850 | 5.0 Ah (XC) | about 60 min (XC) |
| 48-11-1860 | 6.0 Ah (XC6.0) | about 60 min (XC) |
| 48-11-1862 (2-pack) | 6.0 Ah (HIGH OUTPUT XC6.0) | Not stated |
48-59-1812 vs 48-59-1808 — Which Should You Buy?
Both are US chargers that take M18 and M12 packs one at a time. Milwaukee calls the 48-59-1808 its Rapid Charger and says it is up to 40% faster; its manual gives up to 4.5 A (M12) and 6.0 A (M18) output, against 3.0 A for the 48-59-1812. Choose the 1808 if charge speed matters.
Does the 48-59-1812 Charge M12 Batteries?
Yes. Milwaukee says the 48-59-1812 accepts all M18 and M12 batteries and charges them one at a time.
Specifications reflect standard production variants. Always verify compatibility with your specific battery model before purchase. For the most current product information, visit the manufacturer’s official website.
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