£41.50

It has never been this cheap. We have no record of a lower price.

£42 today · cheaper than every other day in the last 3 months

Milwaukee M18B4 4.0Ah Lithium-Ion Battery - Red

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Price History & Forecast

Grey patches = out of stock. Cheaper = lower on the chart. Hover for exact prices.

Last 51 days · 51 data points (no recent data)

Historical
Generating forecast…
£46.50 £41.00 £42.20 £43.40 £44.60 £45.80 £47.00 24 July 2026 05 August 2026 18 August 2026 30 August 2026 12 September 2026
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Multi, M18B4

Price data last checked 40 day(s) ago - refreshing...

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Price Distribution

Price distribution over 51 days • 4 price levels

Days at Price
Current Price
31 days · current 10 days 2 days 8 days 0 8 16 23 31 £42 £43 £44 £47 Days at Price

Price Analysis

Most common price: £42 (31 days, 60.8%)

Price range: £42 - £47

Price levels: 4 different prices over 51 days

Description

Upgrade your cordless tool setup with the Milwaukee M18B4 4.0Ah Lithium-Ion Battery. Designed for reliability and performance, this red battery pack provides the consistent power needed for your professional or DIY projects. Built to handle demanding environments, it maintains functionality even in cold conditions, operating effectively down to -18C. This battery pack is engineered for longevity and efficiency. With integrated individual cell monitoring, the M18B4 optimizes your tool run time while helping to ensure long term pack durability. The built-in temperature management system and overload protection work together to keep your equipment running safely and smoothly. Stay informed about your power levels at a glance with the integrated fuel gauge, which displays the remaining charge. Whether you are working in a workshop or on a job site, the Milwaukee M18B4 offers the dependable energy you need to get the job done right.

Key Features

Built-in fuel gauge allows you to easily monitor the remaining charge so you know exactly when to recharge.

Reliable performance in extreme weather with a design that operates in temperatures as low as -18C.

Individual cell monitoring helps optimize tool run time and supports long term pack durability.

Integrated temperature management system helps maintain optimal operating conditions for the battery.

Built-in overload protection provides an extra layer of safety for your power tools and battery pack.

Product Specifications

Model
M18B4
Colour
Multi
Domain
Amazon UK
Release Date
04 June 2013
Listed Since
09 April 2013

Barcode

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