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Milwaukee M12 battery map

Every M12 REDLITHIUM pack fits M12 tools. CP / XC / HO change size and runtime — not the rail. None of these fit M18.

Shop M12 CP2.0 M18 map

Common M12 SKUs

SKUClassApprox. Ah
48-11-2420CP2.0
48-11-2430CP3.0
48-11-2440XC4.0
48-11-2450XC5.0
48-11-2460HO6.0
48-11-2480HO8.0
48-11-2411HO HD12.0? confirm listing
48-11-2425CP/HO variantconfirm Ah on pack

Hard stops

  • M12 ↔ M18: no
  • Other-brand adapters: not recommended here
  • Replace like-for-like unless the tool needs HO peak current