Maker & DIY News Digest - June 23, 2026
Milwaukee's M18 & M12 Four-Bay Simultaneous Super Charger (48-59-1818) launches June 29 at $499 — charges four FORGE HD12.0 batteries to 100% simultaneously in 90 minutes, with CHARGE ADAPT power distribution, COOL-CYCLE active cooling, and PACKOUT compatibility.
Milwaukee's M18 & M12 Four-Bay Super Charger (48-59-1818) arrives June 29 at $499 — four FORGE HD12.0 batteries to 100% simultaneously in 90 minutes via CHARGE ADAPT power distribution. Two of four bays are hybrid M18/M12 slots. Single battery reaches 80% in 35 minutes. COOL-CYCLE active cooling and PACKOUT-compatible mounting included. Verify price at milwaukeetool.com.
ReportMilwaukee Tool / milwaukeetool.com
Milwaukee M18 & M12 Four-Bay Simultaneous Super Charger (48-59-1818) Launches June 29 at $499 — Four FORGE HD12.0 Batteries to 100% in 90 Minutes, PACKOUT-Compatible
Milwaukee is launching the M18 & M12 Four-Bay Simultaneous Super Charger (48-59-1818) on June 29, 2026 at $499. The charger runs two dedicated M18 bays plus two hybrid M18/M12 bays — all four charge simultaneously via CHARGE ADAPT Adaptive Charge Distribution, which manages power across bays for maximum productivity. Four M18 REDLITHIUM FORGE HD12.0 batteries reach 100% in 90 minutes; a single battery reaches 80% in 35 minutes at SuperCharger speed. COOL-CYCLE Active Cooling System manages battery temperature during high-speed charging. PACKOUT-compatible with integrated carry handle. Preceded by the M18 Dual-Bay Super Charger (48-59-1815) and the M18/M12 Super Charger (48-59-1811). Verify availability and price at milwaukeetool.com on June 29. Source: milwaukeetool.com product page 48-59-1818.
For professionals running mixed M18 and M12 fleets across multiple tools or crew members, a single 4-bay unit replaces the charger-rotation problem — four batteries charging in parallel during a job break, with M12 coverage handled from the same hardware. The PACKOUT mounting adds portability infrastructure: the charger integrates into existing cases and dollies rather than sitting separately on a bench. At $499, this is a crew or fleet infrastructure investment rather than a single-user convenience upgrade.
Source notes
Milwaukee 48-59-1818: Launch June 29, 2026. Price: $499. Bay count: 4 simultaneous — 2 dedicated M18 bays + 2 hybrid M18/M12 bays. Charge speed: 4x FORGE HD12.0 to 100% in 90 min; single FORGE HD12.0 to 80% in 35 min (SuperCharger speed). Charge management: CHARGE ADAPT Adaptive Charge Distribution. Cooling: COOL-CYCLE Active Cooling System. Compatibility: M18 REDLITHIUM and M12 REDLITHIUM battery platforms. Storage: PACKOUT-compatible mounting + integrated carry handle. Predecessor context: replaces the dual-bay 48-59-1815 (2 M18 bays) and M18/M12 Super Charger 48-59-1811 in crew-level workflows. Verify final specs at milwaukeetool.com at launch.
What it changes: The 48-59-1818 sits above the dual-bay 48-59-1815 (2 M18 bays only) and the older M18/M12 Super Charger 48-59-1811 in Milwaukee's charger lineup, targeting contractors who run multiple M18 and M12 batteries on a single job site. The PACKOUT mounting point differentiates it from third-party multi-bay chargers: it becomes part of the mobile storage system rather than a separate bench appliance. At $499, it is priced above generic alternatives for buyers who value ecosystem continuity.
- Will the 48-59-1818 be available at retail (Home Depot, Lowe's) on June 29, or is it a milwaukeetool.com-direct launch first?
- Does charging speed drop on a per-battery basis when all four bays are loaded simultaneously, or does CHARGE ADAPT maintain constant per-battery speed across all slots?
- Is there a standalone M18-only four-bay variant planned at a lower price, or does the hybrid M18/M12 design cover the entire four-bay tier?
Wait if:You run a single M18 battery at a time — the $499 four-bay is infrastructure-level investment; the dual-bay 48-59-1815 at a lower price covers single-user workshop needs without the PACKOUT premium
Buy if:You run 3+ M18 batteries on a crew or across multiple tools simultaneously, or mix M18 and M12 systems — CHARGE ADAPT charges all four bays in parallel and PACKOUT integration means no new storage footprint on the job site; launches June 29 at milwaukeetool.com
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Frequently Asked Questions
What is the Milwaukee M18 & M12 Four-Bay Super Charger (48-59-1818)?▼
The Milwaukee 48-59-1818 is a four-bay simultaneous battery charger handling both M18 and M12 batteries from a single unit. It features two dedicated M18 bays and two hybrid M18/M12 bays — all four slots charge simultaneously via CHARGE ADAPT Adaptive Charge Distribution. Price: $499. Launch: June 29, 2026. Includes COOL-CYCLE Active Cooling and PACKOUT-compatible mounting. Source: milwaukeetool.com. Verify price and availability at launch.
How long does it take to charge four Milwaukee FORGE HD12.0 batteries with the 48-59-1818?▼
Milwaukee's launch spec for the 48-59-1818 states four M18 REDLITHIUM FORGE HD12.0 batteries charge to 100% in 90 minutes when all four bays are simultaneously loaded. A single FORGE HD12.0 charges to 80% in 35 minutes at SuperCharger speed. Charging times for other battery models — XC, CP, FORGE XC series — are not confirmed in available pre-launch materials. Verify the full specification list at milwaukeetool.com when the product goes live June 29, 2026.
Does the Milwaukee 48-59-1818 charge M12 batteries?▼
Yes — two of the four bays are hybrid M18/M12 slots, so users running both platform sizes can charge M12 batteries alongside M18 batteries from the same unit. The other two bays are dedicated M18-only. This is the key capability difference from the M18 Dual-Bay Super Charger (48-59-1815), which does not support M12. Verify the full compatibility list at milwaukeetool.com when the 48-59-1818 launches June 29, 2026.
Is the Milwaukee Four-Bay Super Charger PACKOUT-compatible?▼
Yes — the 48-59-1818 includes PACKOUT-compatible mounting and an integrated carry handle, so it stacks and transports with existing PACKOUT cases, totes, and job-site dollies. For contractors who have already built a PACKOUT system, this integrates into mobile storage rather than requiring a separate bench footprint. Verify mounting dimensions and PACKOUT compatibility at milwaukeetool.com. Launches June 29, 2026 at $499.
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