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Milwaukee Tool MXFHD812: battery facts and compatibility

By 김민성 · ToolBattery editorial

Source review: 2026-10-30 · US English

MXFHD812 is a documented battery in the MX FUEL system. This page identifies its sourced specifications, exact-model restrictions and the next check before use.

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Independent reference. ToolBattery is not a manufacturer or authorized service center. Model revision, region, condition and the latest manual may change the answer. Do not use an unapproved adapter or modified battery.
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Verified model facts

FieldManufacturer-sourced value
ManufacturerMilwaukee Tool
Exact modelMXFHD812
Product typebattery
SystemMX FUEL
MarketUS
Voltage label72V
Capacity12Ah
Chemistrylithium-ion
TechnologyREDLITHIUM FORGE; COOL-CYCLE
  • The manufacturer lists 12Ah capacity for this exact pack.
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What compatibility data says

  • charger to battery — MXFSC: compatible. Manufacturer documentation records this charger to battery relationship.
MXFHD812 ↔ MXFSCManufacturer documentation records this charger to battery relationship.

Exceptions, source limits and safety

  • Check the exact region, revision and current manufacturer instructions.

A missing rating is not zero or universal support. Charger AC input and pack-to-tool use are separate checks.

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Official sources

These source records were reviewed as of 2026-10-30; access methods differ. Open the latest manufacturer manual for your exact type, region and revision before use.

  1. Milwaukee Tool — MX FUEL™ REDLITHIUM™ FORGE™ HD12.0 Battery Pack | Milwaukee ToolOfficial source identifies model MXFHD812 and its product/platform description. Electrical or capacity fields were checked in the manufacturer page embedded product-specification data as well as visible product text. · full_page · Checked 2026-10-30
  2. Milwaukee Tool — Milwaukee registration and warranty battery tableLists legacy and current lithium-ion battery model identities. Warranty listing does not prove that an older model remains on sale. · full_page · Checked 2026-10-30
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