Internet #305058854

Model #48-11-1812

Store SKU #1003168607

Store SO SKU #1003135028

M18 18-Volt Lithium-Ion High Output 12.0Ah Battery Pack

  • 50% more runtime, most work/charge of any power tool battery
  • 50% more power to replace 15Amp corded tools & runs 50% cooler
  • Fully compatible with the M18 system, featuring over 200+ tools
  • See More Details

Frequently Bought Together

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Price:
$19900

Product Overview

M18 REDLITHIUM Battery Guide

M18 REDLITHIUM Batteries

Find the best M18 REDLITHIUM Battery to fit your needs.

Milwaukee 18 volt batteries offer more power, more runtime and longer battery life.

More Power, Runtime, and Battery Life

M18 REDLITHIUM Batteries are available in Compact, Extended Capacity, and High Demand

The Milwaukee M18 System offers over 200 cordless tools on one battery platform.

System Compatibility

All M18 Tools fit M18 Batteries

Four Milwaukee tools utilizing M18 REDLITHIUM HIGH OUTPUT Batteries on various jobsites

M18 REDLITHIUM HIGH OUTPUT Batteries

Deliver more power and run cooler, while providing more run-time and faster charging

Milwaukee M18 REDLITHIUM CP and HIGH OUTPUT CP batteries are perfect for light demand applications.

M18 CP Batteries

M18 REDLITHIUM HIGH OUTPUT CP Batteries provide increased performance and runtime for M18 tools

M18 REDLITHIUM High Demand and HIGH OUTPUT HD batteries are perfect for heavy demand applications.

M18 XC Batteries

M18 REDLITHIUM HIGH OUTPUT HD Batteries provide increased performance and runtime for M18 tools

Graphic of all the parts of the REDLITHIUM Battery Pack

Advanced Lithium-Ion Technology

Last longer, think faster, and work harder than all other professional Lithium-Ion batteries.

Graphic of all the parts of the REDLITHIUM Battery Pack

Advanced Lithium-Ion Technology

Last longer, think faster, and work harder than all other professional Lithium-Ion batteries.

Two Milwaukee REDLITHIUM battery cells on white background

Lithium-Ion Cell Technology

Milwaukee was the first to introduce cell technology - providing users with more power, run-time, and life.

Internal view of M18 REDLITHIUM Battery Pack with three rows of five battery cells

M18 REDLITHIUM Battery Pack Design

Protects against harsh jobsite conditions through unique, patented designs.

Milwaukee REDLITHIUM Battery's Microchip on a gray background

Milwaukee Battery Electronics

Integrated electronics monitor individual cells, provide temperature and overload protection and optimize performance

M18 REDLITHIUM battery charging on a Milwaukee dual voltage charger in tool storage chest.

Intelligent Charging

Protects the pack in abusive situations, provides optimum performance and monitors cells for maximum life

Milwaukee protects your investment by backing all their M18 Batteries with warranties.

Battery Warranties

HD and XC Batteries = 3 Year Warranty. CP Batteries = 2 Year Warranty.

The M18 REDLITHIUM HIGH OUTPUT HD12.0 Battery Pack provides 50% more power and runs 50% cooler vs M18 REDLITHIUM HD battery packs. The massive increase in power elevates the performance of the entire M18 system and drives the next breakthrough in M18 FUEL, delivering the power of 15A corded product. It delivers fade free power and runs substantially cooler through heavy applications, allowing tradesmen to push their cordless tools harder and longer than ever before. The M18 REDLITHIUM HIGH OUTPUT HD12.0 is the best performing cold weather pack ever made, providing increased power in extreme cold weather conditions (below 0F / -18C). It provides the most work per charge of any professional power tool battery in the industry, driving full corded replacement on the jobsite. The REDLITHIUM HIGH OUTPUT HD12.0 battery is fully compatible with 175+ M18 solutions.
  • REDLINK Intelligence: Our battery circuitry provides optimized performance and overload protection using total system communication between tool, battery and charger
  • Best-in-class construction: Offers long-lasting performance and the best protection against jobsite, weather and environmental conditions
  • Fuel gauge onboard: Displays remaining run-time
  • Versatility: Powers all 175-plus M18 cordless solutions
  • Compatible with all M18 tools
  • 3 year battery warranty
  • Includes: (1) M18 REDLITHIUM HIGH OUTPUT HD12.0 Battery Pack






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Info & Guides

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Specifications

Dimensions

Product Height (in.)
3.89 in
Product Length (in.)
5.99 in
Product Width (in.)
3.38 in

Details

Battery Amp Hours
12.0
Battery Power Type
Lithium Ion
Charge time (min.)
90
Color Family
Red
Cordless/ Corded
Cordless
Number of Batteries Included
1
Number of Total Batteries Included
1
Power Tool Accessory Type
Battery
Power Tool Features
No Additional Features
Rechargeable
Yes
Returnable
180-Day
Tools Product Type
Power Tool
Voltage (volts)
18

Questions & Answers

83Questions66Answers

Stupid question but does this battery actually work in the 1/2 m18 fuel impact?

Asked by Roadsideking August 2, 2018
8
Answers

Yes, it's the best of the best. It was made for the bigger tools but works on all m18 tools. It's the only battery I can use on my Milwaukee chain saw!

What is the mAh capacity of this battery?

Asked by Tommy October 5, 2018
8
Answers

As it says on the battery, its a 12Ah battery which equals to 12000 in mAh. "To convert Ah to mAh, you need to multiply the number of Ah by 1000" Also,, The bigger question should be what is its watt-hours(Wh)?.. if you trying to find out its total run time on a single charge...

Can this fit in the cordless shop vac 08820-20

Asked by Prowash January 23, 2019
8
Answers

yes it should the batts can also b used on other milwaukee tools as well

Would these work with a 6-1/2 in. Cordless Circular Saw Kit?

Asked by Chris May 27, 2019
7
Answers

Fine

What does this weigh?

Asked by Eric June 12, 2018
6
Answers

as stated above, mine came with a "super sawsall" kit which brought to total weightof the tool to 13lbs.... its heavy, probably better suited for a light than a tool to be used overhead. Just my 2c

What's the difference between these and the regular XC battery packs of the same capacity?

Asked by MrM3000 March 28, 2020
6
Answers

Provides more power than a standard xc battery

How does this High Output XC6.0 compare to the previous XC6.0? What are the differences?

Asked by AxeMan July 16, 2018
6
Answers

I have never heard of a 18620 battery. I have heard of 18650s tho. My home solar set up uses over 1000 of them. It has reduced the bill from $400 to $90 a month. Also 26650 and 32650s as well as 17650s which can take the place of 2 cr123s.

Will it fit the regular 18 volt charger

Asked by Jack January 5, 2019
6
Answers

as long as it is an M-18 charger

Will this battery fit M18 Rocket light?

Asked by Jay June 21, 2019
6
Answers

Current models will accept this 12.0 battery while older models will need to be sent to Milwaukee Tool for a no charge 12.0 upgrade service kit to be installed.

Can a M-18 Lithium in place of a M-18 NICAD battery

Asked by Sparky July 10, 2020
5
Answers

Depends on compatibility.

M18 18-Volt Lithium-Ion High Output 12.0Ah Battery Pack - page 2

Customer Reviews

  • 1290 Customer Reviews
  • 4.7 out of 5 stars overall
92% of customers recommended.
Overall Ratings
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I ran a constant current discharge test on each after full charge at 2C which is twice the rating...
I ran a constant current discharge test on each after full charge at 2C which is twice the rating or 6.0 amperes. The 2 batteries were nearly identical showing 2.95 Ah (Ampere hours) of usable charge for the 3 Ah rating. I do this test with all batteries that I buy. Real Milwaukee Lithium are among the best I encounter. Often fake or off-label products test out less than half of the rated Ah.
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All Milwaukee tools make my job more easy...
All Milwaukee tools make my job more easy
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The Milwaukee M18 Lithium HO 2.0 battery pack is the best battery on the market. Hands down, the ...
The Milwaukee M18 Lithium HO 2.0 battery pack is the best battery on the market. Hands down, the battery last twice as long the competition. I only by the best and that’s Milwaukee!!
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Really nice battery high output lasts longer.
Really nice battery high output lasts longer.
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Lakewood, Wa
Would not buy again
Customer review from milwaukeetool.com logo
Have 12 batteries and none are more than 6 mounths old for the investment I think this battery would last more than a year, however does not fully recharge.
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Awesome, works great!!! Had enough power to run the Milwaukee vacuum for hours!!
Awesome, works great!!! Had enough power to run the Milwaukee vacuum for hours!!
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2
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Awesome batteries!
Online price at the time of purchase was $179. They rang up for $219. Check out clerk took $40 off with absolutely no hassle. More power, baby!!
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2
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Worked great on milwaukee blower, can do the yard two or three times on one charge.
Worked great on milwaukee blower, can do the yard two or three times on one charge.
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1
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Good battery for bigger tools
Good battery for bigger tools
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Great battery with long lasting power for the bigger tools. This battery is big but the weight i...
Great battery with long lasting power for the bigger tools. This battery is big but the weight isn't much for the chainsaw and weed trimmer. The M18 series keeps getting better and better!
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