Search  for anything...
Milwaukee

Milwaukee Electric Tools M18 High Output HD12.0 Battery Pack

  • Based on 771 reviews
Condition: New
Checking for the best price...
$209.00 Why this price?
Save $3.98 was $212.98

Buy Now, Pay Later

As low as $34.83 / mo
  • – 6-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Free shipping on this product

30-day refund/replacement

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.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: In Stock.
Fulfilled by Jeff’s garage
Arrives Jun 19 – Jun 24
Order within 18 hours and 41 minutes
Available payment plans shown during checkout
Protection Plan Protect Your Purchase
Checking for protection plans...

Recently Viewed

Features

  • 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.

Number of Batteries: 1 Lithium Ion batteries required.


Brand: Milwaukee


Battery Cell Composition: Lithium Ion


Recommended Uses For Product: Power Tool


Unit Count: 1.0 Count


Number of Batteries: 1 Lithium Ion batteries required.


Brand: Milwaukee


Model Name: m18


Manufacturer: Milwaukee


Antenna Location: Power Tool


Voltage: 18 Volts


Reusability: Rechargeable


Amperage: 15 Amps


Unit Count: 1.0 Count


Battery Weight: 4 Pounds


Item Dimensions: 9.21 x 7.72 x 3.46 inches


Item Weight: 3.5 Pounds


Battery Cell Type: Lithium Ion


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Jun 19 – Jun 24

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

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Best price
Outstanding product
Reviewed in the United States on March 31, 2026 by Howard
    • 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
    • Works great
Bought it for my 1" impact gun and it works great.
Reviewed in the United States on February 18, 2026 by Frank L
    • Works good
Good value for the money
Reviewed in the United States on February 25, 2026 by Oren Barnett
    • 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
    • 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
    • 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

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...