Model # 48-11-1812

Internet #305058854

Store SKU #1003168607

Store SO SKU #1003135028

Milwaukee M18 18-Volt Lithium-Ion High Output Battery Pack 12.0Ah
0045242519200

Milwaukee

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

  • 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 175+ tools
$ 249 00
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Frequently Bought Together

Frequently Bought Together

Product Overview

  • 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 175+ tools
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
  • Click here for more information on Electronic Recycling Programs

Product Overview

  • 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 175+ tools
Model #: 48-11-1812
Sku #: 1003168607
Internet #: 305058854

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
  • Click here for more information on Electronic Recycling Programs

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
Power Tool Accessory Type
Battery
Power Tool Features
No Additional Features
Rechargeable
Yes
Returnable
90-Day
Tools Product Type
Power Tool
Voltage (volts)
18

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
Power Tool Accessory Type
Battery
Power Tool Features
No Additional Features
Rechargeable
Yes
Returnable
90-Day
Tools Product Type
Power Tool
Voltage (volts)
18

Questions & Answers

What is the mAh capacity of this battery?

Asked by: Tommy
It takes 1000mah to make 1 amp hour. 12,000 is your answer.
Answered by: Dude
Date published: 2019-02-02

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

Asked by: Roadsideking
Go to the Milwaukee site and there is a full list of things this will not work with. The 1/2 impact is not one of them, you should research the Milwaukee site for answers.
Answered by: Dude
Date published: 2019-02-02

Can this fit in the cordless shop vac 08820-20

Asked by: Prowash
I just tested it in my vac same model number. It fit in the unit and I was able to close the lid just fine. For sure the 12.0ah battery fits both operationally and physically. Wow, runs great too...
Answered by: liquidsands
Date published: 2019-01-24

Will it fit the regular 18 volt charger

Asked by: Jack
as long as it is an M-18 charger
Answered by: MilwaukeeElectric
Date published: 2019-01-07
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Customer Reviews

M18 18-Volt Lithium-Ion High Output Battery Pack 12.0Ah is rated 4.7 out of 5 by 171.
Rated 5 out of 5 by from Very Impressive Power & Battery Life I use Milwaukee tools daily, with the majority being the M18 Line. The M18 HD12.0 Battery was a welcome addition to my arsenal, and it definitely has the power I was looking for. I was on a job recently where a homeowner was concerned about a dead tree on their property, and although I didn't have the chainsaw with me, I used my M18 Sawzall with the HD12.0 Battery. I was worried that my Sawzall was going to overheat because it's not the Fuel version, but it actually ran great while I cut the tree down, and trimmed it into smaller pieces. Overall, this took about an hour and a half, constantly cutting the tree in different places(It would have gone much faster if I had my rough tree trim blade on). Out of my M18 5.0's & HO9.0, I'm massively impressed with the HD12.0. Some tools do take more of a toll on the battery life than others, but that's what the speed charger is for. If you don't have one, it will change your battery charging life. I would highly recommend this battery. GET IT! By the way, when I finished cutting the tree down the HD12.0 Still had 2 bars on the battery!
Date published: 2018-12-26
Rated 5 out of 5 by from This is the latest and greatest (as of July 2018) of the Red Lithium batteries from Milwaukee (se... This is the latest and greatest (as of July 2018) of the Red Lithium batteries from Milwaukee (see Photo 1). It’s a huge 12.0Ah battery pack (see Photos 2 and 3) that weighs 3.3 pounds (as compared to 1.6 lbs for the 5.0Ah battery). If you have tools such as the Milwaukee table saw or miter saw, it’s the battery to have because of its high-amp output. I tried the 12.0 Ah battery with the 2720-20 Sawzall and the 2780-20 angle grinder. I wanted to see if I can feel an increase in performance as compared to the 5.0Ah battery that came with the tools. After quite a few cuts, I have to say that I could not sense any difference in power between the two batteries. Oh well, I’ll have to be content with the incredible run-time the battery offers. Also of note, after using the battery in the tools mentioned above, as well as the 6 1/2” circular saw, I was surprised that the tools didn’t feel more awkward because of the added weight. I wouldn’t hesitate using this large battery in any of my Milwaukee tools.
Date published: 2018-07-27
Rated 3 out of 5 by from 12.0 in string trimmer (weed wacker) i was so excited to try the 12.0 in my fuel weedwacker, the weed wacker is as powerful as a gas one but the run time from a 9.0 compared to 1 tank of gas in a echo does not equal out, i wanted the longer run time from the 12.0 so i can replace the echo finaly! i come to find out the 12.0 and weedwacker are not a good mix, 9.0's like i said operate the tool well, the 12.0 make the tool after a few mins of run time operate bad, it shuts the tool down, and a simple reset of the trigger turns it back on but the longer u use the tool the more often it shuts down till it gets to a point where 1 battery bar left the tool wont run, its almost as tho the 12.0 puts out too much power and the redlink shuts the tool down . i am very disapointed to leave this review i have over 20 milwaukee m18/m12 tools and love your tools, i would like to have this issue resolved!
Date published: 2018-07-27
Rated 4 out of 5 by from The battery makes tools stronger still curious how many... The battery makes tools stronger still curious how many recharges you have on the XC original batteries but still have not had any batteries die with multiple recharges excited about the new high demand batteries never let your battery stay dead for any length of time re-charge it as soon as possible I have noticed batteries that have been left blinking one bar blinking have been weaker overtime
Date published: 2018-12-28
Rated 5 out of 5 by from I have bought this product again. This battery is a beast ! It lasts forever it seems. I have at least one of each type saw, that Milwaukee makes in the 18V Fuel series. I use the new 12.0 in them all, and cut out the mid day battery swap. Not to mention it’s really a must have for the table and miter saw. One cane with a 9.0 which was ok ..12.0 is better.
Date published: 2019-01-31
Rated 3 out of 5 by from 12.0 on string trimmer (weed wacker) i am dissapointed to leave this review , i am a milwaukee tool fan i have over 20 m18/m12 tools and love your the tools! the fuel weedwacker is a great tool its as powerful as gas but a 9.0 compared to a tank of gas dont equal out, i was more excited to try the 12.0 in the weedwacker and get the longer run time then when i got the 12.0 with my chainsaw! the 12.0 and weed wacker are not a good mix, after a few mins of run time the tool will shut down u can reset it by letting go of trigger and pulling it again but the longer u run the the tool it happens more often till it gets to 1 battery bar left and the tool wont run at its almost as tho the 12.0 is too much power for the weedwacker and red link kicks in and shuts the tool down! the 9.0s like i said operate the tool well but the run time is not great i have 3 9.0's and have killed 2 1/2 batterys in one run and not had a issue like this. id like a answer or resulution or both from milwaukee, has the 12.0 been bench tested in the weedwacker before it was released?
Date published: 2018-07-27
Rated 5 out of 5 by from Cut a large pine tree down. Cut off all... Cut a large pine tree down. Cut off all limbs. Cut tree trunk in 6 foot lengths & disposed of them.I still had two lights on the battery.... Fantastic !!!
Date published: 2019-01-21
Rated 5 out of 5 by from They did a good job, very happy with the run time on the chain saw They did a good job, very happy with the run time on the chain saw
Date published: 2019-01-01
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