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Milwaukee

Milwaukee Electric Tools M18 High Output HD12.0 Battery Pack

Based on 863 reviews
Condition: New
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$224.00
Holiday Deal · 32% off was $329.99

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

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

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Availability: Only 6 left in stock, order soon!
Fulfilled by SupplyDeals
Arrives Nov 13 – Nov 17
Order within 1 hour and 28 minutes

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At a glance

Condition
New
Model
m18
Dimensions
9.21 x 7.72 x 3.46 in
Weight
3.5 lb
Battery Cell Type
Lithium Ion
Amperage
15 A
Antenna Location
Power Tool
Works with
M18

Features 1

  • 12.0 battery fits all M18 tools.

Description

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 150+ M18 solutions.

Specs 11

Brand Milwaukee
Battery Cell Composition Lithium Ion
Recommended Uses For Product Power Tool
Unit Count 1 Count
Model Name m18
Manufacturer Milwaukee
Battery Cell Type Lithium Ion
Amperage 15 A

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Nov 13 – Nov 17

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
  • Affirm Pay in 4
  • Affirm Financing
  • 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.

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Top Amazon Reviews

Real Product!
It’s been hard to find Milwaukee battery that is actually real and for a good price. This is actual Milwaukee. Works great and you can feel the quality. Great packaging and good prices during sale events. Lasts about a week depending on how much you use it. You can tell the difference in how the tools operate as well. Was an awesome gift for my dad! ... show more
Reviewed in the United States on December 27, 2024 by Krystal
Have no doubts about buying.
Great product and company you can trust, will be buying more. Thanks again!.
Reviewed in the United States on April 1, 2026 by Amazon Customer
Lasts forever, heavy
First of all, this thing is a beast! Purchased for work as we need two 5ah batteries to do the greasing we need to do. With this battery, only one battery and no charger is required. This may seem trivial, but when working on ~300 ft. wind towers, the fewer things you take up with you the better. This is not the battery you want to have on your drill as it will wear you out. I also wouldn't use it on an impact as the vibrations and weight combination would tear the case apart. If you need a battery that just lasts, this will work. ... show more
Reviewed in the United States on November 25, 2023 by cwm
What a nice surprise!
I was using 5 ah batteries in my Milwaukee 16 inch chain saw. Now it is a beast with the 12 ah one. I never expected the saw to have the power that my Stihl gasoline has. But this battery has really made my saw so very convenient in limbing out a tree or cutting logs appropriate for a 16 inch saw. I let the sharp chain do the work, no pressure and it does surprisingly well thanks to this more powerful battery. ... show more
Reviewed in the United States on September 7, 2025 by Billy Budd
Best price
Outstanding product
Reviewed in the United States on March 31, 2026 by Howard
M18 12amp battery
This was a replacement for a previous battery that had a defective cell. This one holds charge and works as designed. Price is too high but the knockoff brand that I purchased and then returned only lasted 1/4 of the run time on the Milwaukee
Reviewed in the United States on June 2, 2024 by Oldwood
Long live and large capacity
I used to buy the knock offs a lot. About half my batteries are. They are all made in China, so no matter. Or so I thought. Over the last 5 years or so I have accumulated a bucket full of batteries that no longer hold much charge or won’t fully charge. All but one of the failures were knock offs. This might be caused by the charger electronics or it’s the batteries or both. Anyway, I have started to stick to the expensive stuff from Milwaukee. So far so good. These Milwaukee batteries run my blower twice as long as the (3 year old) knock offs with supposedly the same capacity. ... show more
Reviewed in the United States on June 27, 2024 by Amazon Customer
High Quality
Naturally, Milwaukee brand anything is the best. If you have a high demand tool, do not try knock off brand batteries with them. Stick with the Milwaukee batteries for tools that you want to work when you need them. This battery is essential for using on the Milwaukee 16" chainsaw. It does take a while for it to charge in the standard charger, so have spares. But otherwise, this is a great battery. I just wish the price on them would come down a bit. ... show more
Reviewed in the United States on April 19, 2024 by Chad Bourg
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