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Milwaukee M18 REDLITHIUM Forge HD12.0 Battery Pack

  • Based on 57 reviews
Condition: New
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$191.24 Why this price?
Save $57.76 was $249.00

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Availability: Only 5 left in stock, order soon!
Fulfilled by Amazon

Arrives Saturday, Mar 28
Order within 23 hours and 53 minutes
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Features

  • 50% More Power vs HIGH OUTPUT HD12.0 COOL-CYCLE Active Cooling System provides high-speed cooling for less downtime with COOL-CYCLE capable chargers 35min Supercharge to 80% with the M18 Dual Bay Simultaneous Super Charger Longest life for the most recharges and best performance over the life of the pack
  • REDLITHIUM FORGE provides the most powerful, fastest charging, and longest life batteries within REDLITHIUM Fully compatible with the M18 system, featuring 250+ tools Patented ingress coating provides increased protection to maximize active cooling through an upgraded venting design

Description

The MILWAUKEE M18 REDLITHIUM FORGE HD12.0 Battery Pack delivers 50% more power than the HIGH OUTPUT 12.0, high-speed cooling for less downtime in high-demand applications, 35-minute supercharge to 80%, and the longest life vs REDLITHIUM batteries. REDLITHIUM FORGE are Milwaukee's most powerful, fastest charging, and longest-life batteries. The M18 REDLITHIUM FORGE HD12.0 delivers 12 amp hours of runtime with 50% more power than the HIGH OUTPUT 12.0, providing optimal power and runtime for demanding applications. The M18 REDLITHIUM FORGE HD12.0 is COOL-CYCLE capable. COOL-CYCLE Active Cooling System provides high- speed cooling for less downtime. Patented ingress coating provides increased protection to maximize active cooling through an upgraded venting design. The high-speed cooling feature works with M18 chargers that have COOL-CYCLE capability. When paired with the M18 Dual Bay Simultaneous Super Charger, this battery charges in just 35 minutes to 80%, getting you back to work faster than ever before. This lithium-ion battery has the longest life, the most recharges, and the best performance over the life of the battery. It is also designed with resistant housing for increased protection against exposure to common oils, greases, and solvents. Built-in REDLINK Intelligence protects the battery from overloads, preventing you from damaging your cordless power tools in heavy-duty situations. Fully compatible with 250+ M18 solutions.

Number of Batteries: 1 Lithium Ion batteries required.


Brand: Milwaukee


Battery Cell Composition: Lithium Ion


Battery Capacity: 12 Amp Hours


Recommended Uses For Product: Power Tool


Number of Batteries: 1 Lithium Ion batteries required.


Brand: Milwaukee


Model Number: 48-11-1813


Model Name: Milwaukee M18 REDLITHIUM FORGE HD12.0 Battery Pack


UPC: 045242140688


Manufacturer: Milwaukee


Warranty Description: MANUFACTURER


Voltage: 18 Volts


Reusability: Rechargeable


Battery Capacity: 12 Amp Hours


Battery Weight: 2.5 Grams


Item Dimensions: 5.94 x 4.21 x 4.02 inches


Item Weight: 3.4 Pounds


Antenna Location: Power Tool


Battery Cell Type: Lithium Ion


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Mar 28

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Take No Prisoners
The Milwaukee M18 RedLithium Forge 12.0 Battery kicks ass & takes no prisoners. Long lasting & even when it’s down to the lowest charge it’s still rolling hard. Get it while you can @ this price ($190-$200) because that’s $80/$90 cheaper than Home Depot. Highly recommend
Reviewed in the United States on March 15, 2026 by Domer1

  • Worth the Price
The biggest and most powerful battery for your portable equipment. This battery will run constantly full speed for around 30 minutes but will take several hours to charge back to full capacity. It was a bit expensive but definitely worth the purchase if you don’t want the hassle or having to keep changing out batteries. ... show more
Reviewed in the United States on December 16, 2025 by Denise

  • The Best Battery for Milwaukee Tools
As you would expect, this is a very high quality battery. I have some knockoffs that seem to work fine, but this battery is a beast in my blower and in my opinion is the best battery for big Milwaukee tools. With batteries YGWYPF.
Reviewed in the United States on January 19, 2026 by Justaguy

  • Long lasting on a charge
Strong powerful battery.
Reviewed in the United States on February 5, 2026 by Joe Consumer

  • The real Milwaukee
The two batteries I ordered came in Milwaukee packaging and when you hold the battery level button down it goes into diagnostic mode, so I believe these are not fake but real Milwaukee batteries. Only used one time for a few minutes but so far no complaints. They came with only one bar of charge each so I charged them on the Milwaukee 2 battery charger that I already had. Price was decent and better than elsewhere I checked. ... show more
Reviewed in the United States on February 11, 2026 by Randy

  • Milwaukee Battery
GREAT STRONG BATTERY 💪🏼
Reviewed in the United States on February 10, 2026 by Eleazar T.

  • Very Nice . . .
Four of these last longer in heavy duty M18 tools for lawn, leaves, and snow which are heavy duty jobs . . . The HD6.0 and HD8.0 battery packs are better suited for the M18 Tools requiring single battery packs . . .
Reviewed in the United States on November 17, 2025 by KI Time

  • Relieved
Showed up late but is great!
Reviewed in the United States on March 18, 2026 by Gary Ferris

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