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(£53.99 INC VAT)
£52.99
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Milwaukee M18 B5 5.0Ah 18V Li-Ion Battery
The Milwaukee M18 B5 18V 5.0Ah REDLITHIUM Battery from ITS is a high-performance power source engineered to deliver longer runtime, greater power and outstanding durability across the entire Milwaukee M18™ cordless platform.
Designed for professional tradespeople who rely on cordless tools throughout the working day, this genuine Milwaukee battery combines advanced REDLITHIUM™ battery technology with REDLINK™ intelligent electronics to maximise productivity while protecting both the battery and connected tool.
Compatible with every Milwaukee M18™ cordless product, it provides dependable performance whether you're drilling, cutting, grinding, fastening or carrying out demanding construction, electrical and mechanical applications.
At the core of the battery is Milwaukee's advanced REDLITHIUM™ technology, delivering up to 2.5 times more runtime, up to 20% more power and up to twice the overall battery life compared to previous Milwaukee battery technology and standard lithium-ion batteries, depending on the tool and application.
This enhanced efficiency allows professionals to work longer between charges while maintaining consistent performance, helping reduce downtime on busy jobsites.
The M18™ B5 incorporates Milwaukee's intelligent REDLINK™ digital overload protection system, which continuously monitors communication between the battery and tool to prevent damage caused by overloading or abusive operating conditions. Individual cell monitoring balances charging and discharging across every cell to optimise performance, maximise runtime and significantly extend battery lifespan.
This intelligent battery management ensures reliable power delivery throughout every charge cycle while helping to protect your investment in Milwaukee cordless tools.
Built for demanding professional environments, the battery features a durable metal frame construction with shock-responsive separators that help protect the internal cells against damage caused by vibrations, impacts and accidental drops.
An advanced water protection system actively directs moisture away from the internal electronics, improving durability in harsh working conditions. The battery is also designed to perform reliably in temperatures as low as -20°C, maintaining runtime and performance even during cold-weather applications.
| Power Supply | Cordless |
| Buying Option | 5.0Ah 18V Battery |
| Pack Size | 1 |
| Product Weight | 0.75kg |
| Voltage | 18V |
| Battery Type | Lithium-Ion |
| Battery Capacity | 5.0Ah |
| Battery Compatibility | Milwaukee 18V Li-Ion |
| Battery Level Indicator | Yes |

The warranty period is 12 months and commences on the date when the product was purchased. This date must be documented by an invoice or other proof of purchase. The warranty period is one year minimum for products, and one year maximum for batteries and chargers. This warranty applies only on new products.
In addition to any statutory rights resulting from the purchase of a new product, all MILWAUKEE branded power tools, outdoor tools and batteries are covered by a voluntary guarantee granted by the manufacturer
The MILWAUKEE Guarantee(s) are only applicable to purchaser(s) who purchase the products as end users ("Purchaser").
Most Milwaukee products can be registered for a 3-year warranty. The products EXCLUDED from the 3-year warranty are: Rechargeable battery packs, battery chargers, and accessories.
You must register your tool within 30 days of purchase. You can register your tools here:https://extension.milwaukeetool.eu/index.htm
Milwaukee M18 is focused on improving productivity for professionals in the trades. They offer more than 215 performance-driven solutions that are fully compatible with the M18™ family - the fastest growing 18V cordless system on the market. The M18 cordless system represents the perfect combination of pro power, weight, performance and superior ergonomics.
SHOP THE M18 RANGEThe MILWAUKEE® REDLITHIUM™ USB system is designed to deliver power to compact tools providing ultimate versatility for the trade professional. Providing 2x more capacity than three AAA alkaline batteries and over 2,000 charges from one disposable battery, this perfect power source is at the heart of compact tools such as lasers, wearable lighting, spirit levels and even clothing. 3x Faster charging time with a MILWAUKEE® USB or REDLITHIUM™ USB Charger.
Description
The Milwaukee M18 B5 18V 5.0Ah REDLITHIUM Battery from ITS is a high-performance power source engineered to deliver longer runtime, greater power and outstanding durability across the entire Milwaukee M18™ cordless platform.
Designed for professional tradespeople who rely on cordless tools throughout the working day, this genuine Milwaukee battery combines advanced REDLITHIUM™ battery technology with REDLINK™ intelligent electronics to maximise productivity while protecting both the battery and connected tool.
Compatible with every Milwaukee M18™ cordless product, it provides dependable performance whether you're drilling, cutting, grinding, fastening or carrying out demanding construction, electrical and mechanical applications.
At the core of the battery is Milwaukee's advanced REDLITHIUM™ technology, delivering up to 2.5 times more runtime, up to 20% more power and up to twice the overall battery life compared to previous Milwaukee battery technology and standard lithium-ion batteries, depending on the tool and application.
This enhanced efficiency allows professionals to work longer between charges while maintaining consistent performance, helping reduce downtime on busy jobsites.
The M18™ B5 incorporates Milwaukee's intelligent REDLINK™ digital overload protection system, which continuously monitors communication between the battery and tool to prevent damage caused by overloading or abusive operating conditions. Individual cell monitoring balances charging and discharging across every cell to optimise performance, maximise runtime and significantly extend battery lifespan.
This intelligent battery management ensures reliable power delivery throughout every charge cycle while helping to protect your investment in Milwaukee cordless tools.
Built for demanding professional environments, the battery features a durable metal frame construction with shock-responsive separators that help protect the internal cells against damage caused by vibrations, impacts and accidental drops.
An advanced water protection system actively directs moisture away from the internal electronics, improving durability in harsh working conditions. The battery is also designed to perform reliably in temperatures as low as -20°C, maintaining runtime and performance even during cold-weather applications.
Features We Love
Milwaukee M18 is focused on improving productivity for professionals in the trades. They offer more than 215 performance-driven solutions that are fully compatible with the M18™ family - the fastest growing 18V cordless system on the market. The M18 cordless system represents the perfect combination of pro power, weight, performance and superior ergonomics.
SHOP THE M18 RANGEThe MILWAUKEE® REDLITHIUM™ USB system is designed to deliver power to compact tools providing ultimate versatility for the trade professional. Providing 2x more capacity than three AAA alkaline batteries and over 2,000 charges from one disposable battery, this perfect power source is at the heart of compact tools such as lasers, wearable lighting, spirit levels and even clothing. 3x Faster charging time with a MILWAUKEE® USB or REDLITHIUM™ USB Charger.
Specification
Warranty Information

The warranty period is 12 months and commences on the date when the product was purchased. This date must be documented by an invoice or other proof of purchase. The warranty period is one year minimum for products, and one year maximum for batteries and chargers. This warranty applies only on new products.
In addition to any statutory rights resulting from the purchase of a new product, all MILWAUKEE branded power tools, outdoor tools and batteries are covered by a voluntary guarantee granted by the manufacturer
The MILWAUKEE Guarantee(s) are only applicable to purchaser(s) who purchase the products as end users ("Purchaser").
Most Milwaukee products can be registered for a 3-year warranty. The products EXCLUDED from the 3-year warranty are: Rechargeable battery packs, battery chargers, and accessories.
You must register your tool within 30 days of purchase. You can register your tools here:https://extension.milwaukeetool.eu/index.htm
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