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12.0Ah 18V Replacement for Milwaukee M-18 Battery High Capacity

  • Based on 20 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Tuesday, Jun 17
Order within 14 hours and 57 minutes
Available payment plans shown during checkout

Features

  • Wide Compatibility: Being a replacement for Milwaukee 18V batteries 48-11-1850, 48-11-1815, 48-11-1820, 48-11-1822, 48-11-1828 , 48-11-1840, 48-11-1841, 48-11-1811, 48-11-1852, 48-59-1850, etc., our battery is compatible with Milwaukee 18v cordless tools 2646-22CT, 2643-21CT, 2641-21CT, 2646-21CT, 2646-20, 2642-21CT, 2641-20, 2729-22,etc
  • Outstanding Performance: As an advanced battery, it has no memory effect, making it charged and discharged without loss of battery capacity. What's more, our battery has a higher capacity of 12000mAh, improving your work efficiency.
  • Multiple Protection: Our built-in intelligent chip provides it with stabilized circuit and protection against over-heating, over-charge, over-discharge, and over-current. Thus, you can gain a guarantee and use it without worries.
  • Smart Indicator: Compared with other batteries, our battery is equipped with a 5-LED indicator which can help you directly check the power to charge in time. It can make your work more efficient.
  • Professional After-Sales Services: With 30 days no reason to return or exchange, a 36-month warranty and 24-hour online support, if there are some problems related to usage and quality, you can immediately contact us and we will handle it for you.

Brand: KOOMICY


Recommended Uses For Product: Power Tool


Voltage: 18 Volts


Reusability: Rechargeable


Amperage: 12 Amps


Package Dimensions: 6.38 x 4.49 x 4.02 inches


Item Weight: 3.19 pounds


Date First Available: October 30, 2024


Manufacturer: KOOMICY


Country of Origin: China


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Jun 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
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Great battery
Size: 12Ah
Battery has worked great so far! It recharges just like the name brand kind and holds a charge for a long time. I use it for my Milwaukee blower and it works flawlessly. Very happy
Reviewed in the United States on March 18, 2025 by Sarah R.

  • This is the first not genuine battery that works
Size: 12Ah
Before this I bought 6 or 7 Vanon batteries. They are junk and their warranty is garbage also. Two of them didn't work out of the box, returned them, paid for the shipping and got nothing from them... so DO NOT BUY Vanon batteries THIS Battery is AWESOME! It is big and somehow heavy but it never dies!! I have a lot of different Milwaukee tools, including a weed eater, blower and other high power tools and this thing is fantastic! I haven't used this for a long time, so I cannot speak for how long it will last but so far so good!! ... show more
Reviewed in the United States on December 11, 2024 by Cosimo Pecchioli

  • Charger issues
Size: 12Ah
Only issue with this battery is that the charger will charge it but the green light nor red light come on
Reviewed in the United States on January 5, 2025 by Miguel Sims

  • Battery Works Well, So Far
Size: 12Ah
So far, this is a great battery, I've been using it for several days and hours on my drill, saw and leaf blower and it still has almost a full charge. It is a little hard to pull off of the tools but hopefully that will be easier as the plastic wears more. The real test will be in the coming months and years to see how it charges and holds a charge. The same amp-hour Milwaukee battery is more than $250 and this battery was about $80. ... show more
Reviewed in the United States on December 2, 2024 by Amazon Customer

  • works great
Size: 12Ah
great battery
Reviewed in the United States on February 21, 2025 by James Ragen

  • not made for Milwaukee chargers
Size: 12Ah
battery takes a charge but does not turn off charger when full charged
Reviewed in the United States on March 20, 2025 by Terry W.

  • Tested in at 8.6ah
Size: 12Ah
Tested in at 8.6ah, which is good for Chinese knock off batteries (average is 60% "good" tends to be 66% of rated, this is 71.6%,) but not good enough of a value for me on this purchase. This one will be going back
Reviewed in the United States on December 16, 2024 by RF RF

  • Tons of reserve power
I have several Milwaukee tools and batteries both OEM and clones and am always looking for more. This 12Ah battery is huge in both size and power. It fits my tools and chargers and works with them perfectly. I think a lot of these clone batteries play fast and loose with the power ratings but with this one I wouldn't be surprised if is accurate. If you need one battery that you are sure will last as long as possible this is the one for you! ... show more
Reviewed in the United States on August 23, 2024 by JJ

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