SKU: 30679361553

Milwaukee M18B4 18V REDLITHIUM 4.0Ah Li-Ion Battery (2 Pack)

Sale price$74.66 Regular price$82.95
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Ships within 48 hours · Estimated delivery Jul 11 - Jul 16

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Description

Milwaukee M18B4 18V REDLITHIUM 4.0Ah Li-Ion Battery (2 Pack)Milwaukee M18B4 18V REDLITHIUM 4. 0Ah Li Ion Battery 2 Pack The Milwaukee M18B4 18V REDLITHIUM 4. 0Ah Li Ion Battery Twin Pack delivers extended runtime, increased power and outstanding durability for all Milwaukee M18 cordless tools. Designed for demanding professional applications, these high performance batteries provide reliable power even in challenging environments. Featuring advanced REDLINK intelligence and robust internal construction, these

Milwaukee M18B4 18V REDLITHIUM 4.0Ah Li-Ion Battery 2 Pack

The Milwaukee M18B4 18V REDLITHIUM 4.0Ah Li-Ion Battery Twin Pack delivers extended runtime, increased power and outstanding durability for all Milwaukee M18 cordless tools. Designed for demanding professional applications, these high-performance batteries provide reliable power even in challenging environments.

Featuring advanced REDLINK intelligence and robust internal construction, these batteries offer superior protection against overload, overheating and harsh site conditions. With enhanced capacity compared to lower Ah batteries, they are ideal for users who need longer working time between charges.

Key Features

  • Compatible with all Milwaukee M18 18V cordless tools
  • 4.0Ah capacity for longer runtime and improved efficiency
  • Supplied as a convenient twin pack
  • REDLITHIUM technology delivers increased runtime, power and battery life
  • REDLINK digital overload protection safeguards tools and batteries
  • Individual cell monitoring optimises charge and discharge cycles
  • Durable metal frame construction for enhanced strength and longevity
  • Shock-responsive separators reduce damage from vibration and drops
  • Water protection design channels moisture away from internal electronics
  • Operates in extreme temperatures down to -20°C
  • Integrated battery fuel gauge for easy runtime monitoring

Built for Professional Performance

The Milwaukee M18B4 battery pack is engineered for tradespeople who require dependable power throughout the working day. Its rugged design and intelligent electronics help maximise performance while extending battery lifespan, making it a reliable choice for both site and workshop use.

Data Sheet: Click here for data sheet

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 30679361553

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4.3 ★★★★★
Based on 1017 reviews
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Kim C
Natrona Heights, US
★★★★★ 4
Work well but run small
Size: 1 pair black L
They do seem to run a bit small. I bought them for my bf but snagged them from him because I couldn’t resist! I’m about a W8/12 and they were just a little big but unlike others, I just put them on while sleeping and didn’t walk around with them. If you’re just planning on that, they did a great job at sloughing and moisturizing 😎
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Reviewed in the United States on April 25, 2026
A
Verified Purchase
Aaron Duncan
Houston, US
★★★★★ 5
Good socks they work.
Size: 2 pairs black L
I normally wear size 13&half to 14 men's, and these fit me ok. They sit just below the ankle. They can get a little tight for me so you should look out for that if you are on the thicker side. But they work as advertised and help moisturize your feet. I recommend wearing them if you're going to just be hanging around home for a bit in one spot as they can be a little slippery to walk in if you go fast. Would not recommend going up and down stairs.
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Reviewed in the United States on August 28, 2025
B
Verified Purchase
Brian
Lake Worth, US
★★★★★ 5
Good socks
Size: 1 pair black L
Good socks
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 6, 2026
A
Verified Purchase
Amazon Customer
Natrona Heights, US
★★★★★ 3
REALLY unsafe to walk around in these
Size: 2 pairs black L
They do what they are expected to do, but should only be used if you are stationary. The gel base makes for very unstable footing if walking around
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Reviewed in the United States on May 27, 2026
S
Verified Purchase
Suz
Battle Creek, US
★★★★★ 5
These work
Size: 2 pairs black L
My husband loves these they help his very dry feet. As others have stated they are extremely difficult to walk in so have to be careful but they do work nicely.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 12, 2026

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