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Milwaukee M18 REDLITHIUM Forge HD12.0 Battery Pack

Based on 437 reviews
Condition: New
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$208.90
Holiday Deal · 5% off was $219.97

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This item's return window has been extended for the holiday season: Returnable until Jan 31, 2027

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Availability: In Stock.
Fulfilled by Industrial Tools

Arrives Sunday, Nov 15
Order within 9 hours and 53 minutes

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At a glance

Condition
New
Model
48-11-1813
Dimensions
7.76 x 7.28 x 3.5 in
Weight
3.04 oz
Battery Capacity
12 Ah
Voltage
18 volts
Reusability
Rechargeable
In the box
(1) M18™ REDLITHIUM™ FORGE™ HD12.0 Battery
Warranty
MANUFACTURER

Features 5

  • REDLITHIUM FORGE provides the most powerful, fastest charging, and longest life batteries within REDLITHIUM
  • REDLINK Intelligence: Our battery circuitry provides optimized performance and overload protection using total system communication between tool, battery and charger
  • Resistant housing designed to provide increased protection against exposure to common oils, greases, and solvents
  • Enhanced onboard fuel gauge with improved readability in direct sunlight

Description

Our 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 our 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. REDLINK Intelligence protects the battery from overloads, preventing you from damaging your cordless power tools in heavy-duty situations. The M18 REDLITHIUM FORGE HD12.0 battery is fully compatible with 250+ M18 solutions.

Specs 16

Number of Batteries 1 Lithium Ion batteries required. (included)
Brand Milwaukee
Battery Cell Composition Lithium Ion
Battery Capacity 12 Ah
Recommended Uses For Product Power Tool
Model Number 48-11-1813
Model Name Milwaukee M18 REDLITHIUM FORGE HD12.0 Battery Pack
UPC 045242140688

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Nov 15

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.

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  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


Excellent battery life!
This is a must buy if you own any high output tools from Milwaukee. Weedeater, blower, hedge trimmer. I used to go right through the 8.0 batteries. Now I can do my entire yard weed trimming on just this battery alone. It's also a newer generation battery and it doesn't get nearly as hot if hot at all. You need this one because it's clearly the best battery they have out now. I highly suggest this purchase and I wish I had bought one sooner. ... show more
Reviewed in the United States on September 14, 2026 by Christopher A. Allsbrook

Milwaukee Quality ❤️
Get what you pay for comes as expected don’t second guess the Authenticity. Milwaukee Quality ❤️
Reviewed in the United States on October 10, 2026 by Lonnie Arthur

Big Bertha of Batteries
Power it all with big Bertha. You can power all your hammer drills, lights, drills, or whatever else you can think of. This is the real deal. For real workers. The blue collar, cigarette chewing kinds.
Reviewed in the United States on October 8, 2026 by Jeff Pesos

Works as it should
We were skeptical at first. The performance is good as the other milwaukee battery packs. Its as heavy as the OEM and lasts just as long. We are good with it and the price was right too!
Reviewed in the United States on June 24, 2026 by Festus hagen

Its kinda heavy but i can get used to that but the ego brand is lighter than that one easier control
So far it’s been great
Reviewed in the United States on October 9, 2026 by Russell Scuncio

go big red
this is a top quality battery milwaukee makes really nice tools i am in the process of changing from the yellow tools to the red tools so far i bought the wormdrive saw and multi tool much better and lighter then the yellow tools
Reviewed in the United States on October 2, 2026 by Mark Maloney

Beast of a Battery
Massive. Heavy. Absurdly powerful and borderline overqualified for polite society. Yes, it weighs enough to remind you that you are not spending enough time at the gym, but that’s the price of having your blower and impact wrench suddenly behave like they’ve been personally offended by resistance. Runtime is generous, output is relentless, and the tools just… don’t slow down. If you’re looking for subtlety, this isn’t it. If you’re looking for “press trigger, solve problem immediately,” welcome home. ... show more
Reviewed in the United States on April 2, 2026 by Fuzz

Good quality and holds a long charge
Really adds the weight to the tool you are using but it packs a lot of juice when fully charged it lasts and lasts
Reviewed in the United States on July 10, 2026 by Jeff Hayes
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