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Milwaukee 48-11-1850R M18 18V 5Ah XC Extended Capacity Resistant Battery 2 Pack, (48-11-1850Rx2)

  • Based on 874 reviews
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$135.00 Why this price?
Presidents' Day Sale · 4% off was $139.99

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Availability: In Stock.
Fulfilled by Amazon

Arrives Thursday, Feb 19
Order within 19 hours and 34 minutes
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Features

  • Best-in-class construction: Resistant housing designed to provide increased protection against exposure to common oils, greases, and solvents
  • All-weather performance: delivers fade free power in extreme jobsite conditions
  • Fuel gauge onboard: Displays remaining runtime
  • REDLINK Intelligence: Our battery circuitry provides optimized performance and overload protection using total system communication between tool, battery, and charger
  • Versatility: Powers more than 200+ Milwaukee M18 cordless power tools

Description

Milwaukee 48-11-1850R M18 18V 5.0 Ah Lithium-Ion XC Extended Capacity Resistant Battery 2 Pack The Milwaukee M18 XC5.0 Resistant Battery is built with a resistant housing, providing increased protection against exposure to common oils, greases, and solvents found in automotive and manufacturing environments. Each battery pack is durably built for heavy-duty use, runs cooler, and performs in cold weather climates. Features: Best-in-class construction: Resistant housing designed to provide increased protection against exposure to common oils, greases, and solvents All-weather performance: delivers fade power in extreme jobsite conditions Fuel gauge onboard: Displays remaining runtime REDLINK™ Intelligence: Our battery circuitry provides optimized performance and overload protection using total system communication between tool, battery, and charger Versatility: Powers more than 200+ Milwaukee® M18™ cordless power tools Pack Includes: (2) Milwaukee 48-11-1850R M18 18V 5.0 Ah Lithium-Ion XC Extended Capacity Resistant Battery Pack

Brand: Milwaukee


Vehicle Service Type: Motorcycle


Size: 2 Count (Pack of 1)


Voltage: 18 Volts


Battery Cell Composition: Lithium Ion


Item Weight: 3.2 Pounds


Product Dimensions: 3.1"D x 4.5"W x 2.8"H


Number Of Cells: 4


Resistance: 0.33 Milliohms


Terminal: Flat Terminal


Brand: ‎Milwaukee


Size: ‎2 Count (Pack of 1)


Product Dimensions: ‎3.1"D x 4.5"W x 2.8"H


Number Of Cells: ‎4


Resistance: ‎0.33 Milliohms


Terminal: ‎Flat Terminal


Battery Capacity: ‎5 Amp Hours


Manufacturer: ‎Milwaukee


Model: ‎48-11-1850Rx2


Item Weight: ‎3.17 pounds


Item model number: ‎48-11-1850Rx2


Batteries: ‎2 Lithium Ion batteries required.


Amperage: ‎5 Amps


Date First Available: August 5, 2022


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Feb 19

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


  • Milwaukee is king 👑
Powerful and strong, Battery lasts, and charges quickly, It is quite heavy, but its worth for the power it gives you! Even it falls down 10 ft. It will usually still preform well as my experience, It functions like a beast 💪 Other companies are getting low much quicker in cold temperatures if you work in construction or using it outdoors in winter ... show more
Reviewed in the United States on January 25, 2026 by I. K.

  • They’re Batteries… and They Do Their Job
What can you really say about batteries? These Milwaukee 48‑11‑1850R M18 18V 5Ah packs work exactly the way you hope they will. They charge up, hold power like champs, and keep my tools running without any drama. No surprises, no issues—just solid, reliable performance. Sometimes “they work fine” is the highest praise a battery can get. ... show more
Reviewed in the United States on December 28, 2025 by Anna

  • real milwaukee batteries for an unbelievable price
buying these milwaukee batteries from any hardware store costs an arm and a leg. this was a wonderful find.
Reviewed in the United States on January 30, 2026 by Fatpotato42

  • Great product
Had a slight mishap on shipping but shipper was very responsive and very informative. Was very please with dealing with shipper! Would highly recommend if you need batteries or anything else in store listed. Battery life is excellent and long lasting.
Reviewed in the United States on January 30, 2026 by BRYDEN

  • Original Milwaukee
Perfect! Original Milwaukee Battery..best price
Reviewed in the United States on December 31, 2025 by Rodrigo Llorente

  • Work great but these were not the resistant ones.
These work great however they are not what I ordered so beware these are not the 48-11-1850R which the r stands for resistant to fluids for mechanics I received 48-11-1850 which are standard. Still four stars because they work great five if they were the right ones.
Reviewed in the United States on May 6, 2025 by Steven J. Olnick

  • M18 battery
Works perfect and pricing was amazing.
Reviewed in the United States on December 31, 2025 by Amazon Customer

  • Great for use on multiple Milwaukee tools
They work great with all of my Milwaukee products including the Blower.
Reviewed in the United States on January 27, 2026 by Carl Simpson

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