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Milwaukee M18 B5 18V 5.0Ah Redlithum-ion Slide Battery

MILM18B5

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Top Features:

  • 5.0Ah capacity delivers extended runtime for demanding applications
  • REDLITHIUM technology provides increased power and battery life
  • REDLINK overload protection helps safeguard tools and batteries
  • Individual cell monitoring optimises performance and longevity
  • Integrated fuel gauge allows quick battery charge checks
  • Durable construction resists vibration, drops and jobsite impacts
  • Operates in temperatures as low as -20°C
  • Compatible with all Milwaukee M18 tools and chargers

Description

Milwaukee M18 B5 18V 5.0Ah Redlithum-ion Slide Battery

The Milwaukee M18 B5 18V 5.0Ah REDLITHIUM-ION Slide Battery is a high-capacity power tool battery designed to keep professional users productive across demanding Accessories/Batteries & Chargers applications. Engineered for the Milwaukee M18 system, it provides reliable cordless power for a wide range of 18V tools on site, from drilling and fastening to cutting and grinding. Its 5.0Ah capacity delivers extended runtime, helping reduce battery changes and supporting longer working periods between charges. Advanced REDLITHIUM-ION and REDLINK electronics offer optimised power delivery, digital overload protection and individual cell monitoring, ensuring consistent performance and helping to extend overall battery life. A robust metal frame construction with shock-responsive separators and integrated water protection is built to withstand tough jobsite conditions, while all-weather performance maintains output even in low temperatures down to -20 °C. An on-board fuel gauge allows quick checks of remaining charge so users can organise their workflow efficiently. Supplied as a single 5.0Ah battery pack, the M18 B5 is fully compatible with all Milwaukee M18 tools and chargers.

4932430483 Features:

  • Milwaukee M18 B5 18V 5.0Ah REDLITHIUM-ION Slide Battery delivers up to 2.5x more run time to keep cordless tools working longer between charges
  • Provides up to 20% more power than standard 18V lithium-ion packs for stronger performance in demanding trade applications
  • Offers up to 2x more battery life and recharges compared with previous Milwaukee battery technology to maximise long-term value
  • REDLINK digital overload protection helps prevent damage to Milwaukee M18 cordless tools in abusive jobsite conditions
  • Individual cell monitoring optimises charge and discharge for each cell, supporting consistent output and extended battery life
  • Durable metal frame battery construction with shock-responsive separators helps protect against vibration and drops on site
  • Water protection routes moisture away from internal electronics to enhance reliability in harsh environments
  • All-weather performance operates effectively down to -20 °C without compromising runtime or battery life
  • On-board battery fuel gauge allows quick checking of remaining charge to plan work and minimise downtime
  • Fully compatible with the Milwaukee M18 system, powering a wide range of 18V tools and accessories in the Accessories/Batteries & Chargers category

Warranty Information

1 Year Standard Warranty (Extendable to 2 Years With Registration)
See Full Description

Milwaukee M18 B5 18V 5.0Ah Redlithum-ion Slide Battery

MILM18B5

£68.59
inc VAT
£57.16
  ex.VAT
Qty:
Adding to basket… The item has been added
We aim to dispatch within 2-3 working days.
Free delivery for UK mainland orders over £100.
Flexible Credit Find out more

Clearpay logoKlarna logoV12 logo

Top Features:

  • 5.0Ah capacity delivers extended runtime for demanding applications
  • REDLITHIUM technology provides increased power and battery life
  • REDLINK overload protection helps safeguard tools and batteries
  • Individual cell monitoring optimises performance and longevity
  • Integrated fuel gauge allows quick battery charge checks
  • Durable construction resists vibration, drops and jobsite impacts
  • Operates in temperatures as low as -20°C
  • Compatible with all Milwaukee M18 tools and chargers
Read Product Description

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Product Description

Milwaukee M18 B5 18V 5.0Ah Redlithum-ion Slide Battery

The Milwaukee M18 B5 18V 5.0Ah REDLITHIUM-ION Slide Battery is a high-capacity power tool battery designed to keep professional users productive across demanding Accessories/Batteries & Chargers applications. Engineered for the Milwaukee M18 system, it provides reliable cordless power for a wide range of 18V tools on site, from drilling and fastening to cutting and grinding. Its 5.0Ah capacity delivers extended runtime, helping reduce battery changes and supporting longer working periods between charges. Advanced REDLITHIUM-ION and REDLINK electronics offer optimised power delivery, digital overload protection and individual cell monitoring, ensuring consistent performance and helping to extend overall battery life. A robust metal frame construction with shock-responsive separators and integrated water protection is built to withstand tough jobsite conditions, while all-weather performance maintains output even in low temperatures down to -20 °C. An on-board fuel gauge allows quick checks of remaining charge so users can organise their workflow efficiently. Supplied as a single 5.0Ah battery pack, the M18 B5 is fully compatible with all Milwaukee M18 tools and chargers.

4932430483 Features:

  • Milwaukee M18 B5 18V 5.0Ah REDLITHIUM-ION Slide Battery delivers up to 2.5x more run time to keep cordless tools working longer between charges
  • Provides up to 20% more power than standard 18V lithium-ion packs for stronger performance in demanding trade applications
  • Offers up to 2x more battery life and recharges compared with previous Milwaukee battery technology to maximise long-term value
  • REDLINK digital overload protection helps prevent damage to Milwaukee M18 cordless tools in abusive jobsite conditions
  • Individual cell monitoring optimises charge and discharge for each cell, supporting consistent output and extended battery life
  • Durable metal frame battery construction with shock-responsive separators helps protect against vibration and drops on site
  • Water protection routes moisture away from internal electronics to enhance reliability in harsh environments
  • All-weather performance operates effectively down to -20 °C without compromising runtime or battery life
  • On-board battery fuel gauge allows quick checking of remaining charge to plan work and minimise downtime
  • Fully compatible with the Milwaukee M18 system, powering a wide range of 18V tools and accessories in the Accessories/Batteries & Chargers category

Warranty Information

1 Year Standard Warranty (Extendable to 2 Years With Registration)

Specification

pdp:https://store-hczpll0y.mybigcommerce.com/content/Thumbnails/Redemptions/Milwaukee_M18Offer_2_PDP.webp
pdp_link:https://www.toolden.co.uk/tool-brands/milwaukee/
Country of Origin:United Kingdom
brand-name-xt:https://cdn11.bigcommerce.com/s-hczpll0y/images/stencil/320w/image-manager/milwaukee-authorised-distributor-logo-sticker-landscape.jpg?t=1707395523
brand-link-xt:https://www.toolden.co.uk/tool-brands/milwaukee/
top_feature:5.0Ah capacity delivers extended runtime for demanding applications
top_feature:REDLITHIUM technology provides increased power and battery life
top_feature:REDLINK overload protection helps safeguard tools and batteries
top_feature:Individual cell monitoring optimises performance and longevity
top_feature:Integrated fuel gauge allows quick battery charge checks
top_feature:Durable construction resists vibration, drops and jobsite impacts
top_feature:Operates in temperatures as low as -20°C
top_feature:Compatible with all Milwaukee M18 tools and chargers
FQQ:What is the capacity and voltage of the Milwaukee M18 B5 5.0Ah Battery?
FAA:It is a 5.0Ah 18V Li-ion slide battery.
FQQ:Is the Milwaukee M18 B5 5.0Ah Battery compatible with Milwaukee M18 tools?
FAA:Yes, it is part of the M18 system and is designed to work with Milwaukee M18 cordless tools.
FQQ:What performance gains does the Milwaukee M18 B5 5.0Ah Battery offer?
FAA:It delivers up to 2.5 times more run time, up to 20% more power and up to twice the battery life compared with other Lithium-Ion technologies and/or previous Milwaukee battery technology. Results depend on the tool and application.
FQQ:What protection and electronics are built into the Milwaukee M18 B5 5.0Ah Battery?
FAA:It features REDLITHIUM protection with REDLINK digital overload protection, a temperature management system, individual cell monitoring and discharge protection.
FQQ:Can I use the Milwaukee M18 B5 5.0Ah Battery in cold conditions?
FAA:Yes, it can be used in extreme temperatures down to 20°C without compromising run time or battery life.
FQQ:Is the Milwaukee M18 B5 5.0Ah Battery resistant to water and impact?
FAA:Yes, water protection routes water away from the electronics, and a durable metal frame with shock-responsive separators helps prevent pack failure from vibration or drops.
FQQ:Does the Milwaukee M18 B5 5.0Ah Battery have a fuel gauge?
FAA:Yes, an on-board fuel gauge shows remaining charge to help you maximise run-time efficiency.
FQQ:How long does it take to charge the Milwaukee M18 B5 5.0Ah Battery?
FAA:Approximate charge times are 59 minutes with M12-18 FC, M12-18 SC or M18 DFC chargers, and 100 minutes with M12-18 AC, M12-18 C or M1418C6 chargers.
FQQ:How much does the Milwaukee M18 B5 5.0Ah Battery weigh?
FAA:The battery weighs about 0.7 kg.
FQQ:What is included with the Milwaukee M18 B5 5.0Ah Battery?
FAA:One M18B5 18V 5.0Ah REDLITHIUM-ION battery is supplied.
Included:1x Milwaukee M18B5 18V 5.0Ah REDLITHIUM-ION Slide Battery
Brand:Milwaukee
Product name:Milwaukee M18B5 18V 5.0Ah REDLITHIUM-ION Slide Battery
Model number:M18 B5
Article number:4932430483
System compatibility:M18
Voltage:18V
Battery pack capacity:5.0Ah
Battery type:Li-Ion
Battery technology:REDLITHIUM-ION
Charge time with M12-18 FC charger:59 minutes
Weight:0.7kg
Supplied in:Blister
promo_image:https://store-hczpll0y.mybigcommerce.com/product_images/Mil_Free5ahBatt_1200-100%20%281%29.webp
promo_description:Spend £500 (Inc. VAT) on any Milwaukee M18 Tool, Storage, Clothing or Accessories and enter code FREEM18B5 at checkout.
promo_claim:Enter code FREEM18B5 at checkout when you reach the qualifying spend and your FREE battery will automatically be added at checkout.
promo_valid:Ends 31st August 2026 or while stocks last.
promo_btn_link:https://www.toolden.co.uk/tool-brands/milwaukee/
promo_terms:https://www.toolden.co.uk/promotions-terms-conditions/

Product Videos

Frequently Asked Questions

Q: What is the capacity and voltage of the Milwaukee M18 B5 5.0Ah Battery?

A:

It is a 5.0Ah 18V Li-ion slide battery.

Q: Is the Milwaukee M18 B5 5.0Ah Battery compatible with Milwaukee M18 tools?

A:

Yes, it is part of the M18 system and is designed to work with Milwaukee M18 cordless tools.

Q: What performance gains does the Milwaukee M18 B5 5.0Ah Battery offer?

A:

It delivers up to 2.5 times more run time, up to 20% more power and up to twice the battery life compared with other Lithium-Ion technologies and/or previous Milwaukee battery technology. Results depend on the tool and application.

Q: What protection and electronics are built into the Milwaukee M18 B5 5.0Ah Battery?

A:

It features REDLITHIUM protection with REDLINK digital overload protection, a temperature management system, individual cell monitoring and discharge protection.

Q: Can I use the Milwaukee M18 B5 5.0Ah Battery in cold conditions?

A:

Yes, it can be used in extreme temperatures down to 20°C without compromising run time or battery life.

Q: Is the Milwaukee M18 B5 5.0Ah Battery resistant to water and impact?

A:

Yes, water protection routes water away from the electronics, and a durable metal frame with shock-responsive separators helps prevent pack failure from vibration or drops.

Q: Does the Milwaukee M18 B5 5.0Ah Battery have a fuel gauge?

A:

Yes, an on-board fuel gauge shows remaining charge to help you maximise run-time efficiency.

Q: How long does it take to charge the Milwaukee M18 B5 5.0Ah Battery?

A:

Approximate charge times are 59 minutes with M12-18 FC, M12-18 SC or M18 DFC chargers, and 100 minutes with M12-18 AC, M12-18 C or M1418C6 chargers.

Q: How much does the Milwaukee M18 B5 5.0Ah Battery weigh?

A:

The battery weighs about 0.7 kg.

Q: What is included with the Milwaukee M18 B5 5.0Ah Battery?

A:

One M18B5 18V 5.0Ah REDLITHIUM-ION battery is supplied.

Milwaukee M18 B5 18V 5.0Ah Redlithum-ion Slide Battery

The Milwaukee M18 B5 18V 5.0Ah REDLITHIUM-ION Slide Battery is a high-capacity power tool battery designed to keep professional users productive across demanding Accessories/Batteries & Chargers applications. Engineered for the Milwaukee M18 system, it provides reliable cordless power for a wide range of 18V tools on site, from drilling and fastening to cutting and grinding. Its 5.0Ah capacity delivers extended runtime, helping reduce battery changes and supporting longer working periods between charges. Advanced REDLITHIUM-ION and REDLINK electronics offer optimised power delivery, digital overload protection and individual cell monitoring, ensuring consistent performance and helping to extend overall battery life. A robust metal frame construction with shock-responsive separators and integrated water protection is built to withstand tough jobsite conditions, while all-weather performance maintains output even in low temperatures down to -20 °C. An on-board fuel gauge allows quick checks of remaining charge so users can organise their workflow efficiently. Supplied as a single 5.0Ah battery pack, the M18 B5 is fully compatible with all Milwaukee M18 tools and chargers.

4932430483 Features:

  • Milwaukee M18 B5 18V 5.0Ah REDLITHIUM-ION Slide Battery delivers up to 2.5x more run time to keep cordless tools working longer between charges
  • Provides up to 20% more power than standard 18V lithium-ion packs for stronger performance in demanding trade applications
  • Offers up to 2x more battery life and recharges compared with previous Milwaukee battery technology to maximise long-term value
  • REDLINK digital overload protection helps prevent damage to Milwaukee M18 cordless tools in abusive jobsite conditions
  • Individual cell monitoring optimises charge and discharge for each cell, supporting consistent output and extended battery life
  • Durable metal frame battery construction with shock-responsive separators helps protect against vibration and drops on site
  • Water protection routes moisture away from internal electronics to enhance reliability in harsh environments
  • All-weather performance operates effectively down to -20 °C without compromising runtime or battery life
  • On-board battery fuel gauge allows quick checking of remaining charge to plan work and minimise downtime
  • Fully compatible with the Milwaukee M18 system, powering a wide range of 18V tools and accessories in the Accessories/Batteries & Chargers category

Warranty Information

1 Year Standard Warranty (Extendable to 2 Years With Registration)
  • 1x Milwaukee M18B5 18V 5.0Ah REDLITHIUM-ION Slide Battery
pdp:https://store-hczpll0y.mybigcommerce.com/content/Thumbnails/Redemptions/Milwaukee_M18Offer_2_PDP.webp
pdp_link:https://www.toolden.co.uk/tool-brands/milwaukee/
Country of Origin:United Kingdom
brand-name-xt:https://cdn11.bigcommerce.com/s-hczpll0y/images/stencil/320w/image-manager/milwaukee-authorised-distributor-logo-sticker-landscape.jpg?t=1707395523
brand-link-xt:https://www.toolden.co.uk/tool-brands/milwaukee/
top_feature:5.0Ah capacity delivers extended runtime for demanding applications
top_feature:REDLITHIUM technology provides increased power and battery life
top_feature:REDLINK overload protection helps safeguard tools and batteries
top_feature:Individual cell monitoring optimises performance and longevity
top_feature:Integrated fuel gauge allows quick battery charge checks
top_feature:Durable construction resists vibration, drops and jobsite impacts
top_feature:Operates in temperatures as low as -20°C
top_feature:Compatible with all Milwaukee M18 tools and chargers
FQQ:What is the capacity and voltage of the Milwaukee M18 B5 5.0Ah Battery?
FAA:It is a 5.0Ah 18V Li-ion slide battery.
FQQ:Is the Milwaukee M18 B5 5.0Ah Battery compatible with Milwaukee M18 tools?
FAA:Yes, it is part of the M18 system and is designed to work with Milwaukee M18 cordless tools.
FQQ:What performance gains does the Milwaukee M18 B5 5.0Ah Battery offer?
FAA:It delivers up to 2.5 times more run time, up to 20% more power and up to twice the battery life compared with other Lithium-Ion technologies and/or previous Milwaukee battery technology. Results depend on the tool and application.
FQQ:What protection and electronics are built into the Milwaukee M18 B5 5.0Ah Battery?
FAA:It features REDLITHIUM protection with REDLINK digital overload protection, a temperature management system, individual cell monitoring and discharge protection.
FQQ:Can I use the Milwaukee M18 B5 5.0Ah Battery in cold conditions?
FAA:Yes, it can be used in extreme temperatures down to 20°C without compromising run time or battery life.
FQQ:Is the Milwaukee M18 B5 5.0Ah Battery resistant to water and impact?
FAA:Yes, water protection routes water away from the electronics, and a durable metal frame with shock-responsive separators helps prevent pack failure from vibration or drops.
FQQ:Does the Milwaukee M18 B5 5.0Ah Battery have a fuel gauge?
FAA:Yes, an on-board fuel gauge shows remaining charge to help you maximise run-time efficiency.
FQQ:How long does it take to charge the Milwaukee M18 B5 5.0Ah Battery?
FAA:Approximate charge times are 59 minutes with M12-18 FC, M12-18 SC or M18 DFC chargers, and 100 minutes with M12-18 AC, M12-18 C or M1418C6 chargers.
FQQ:How much does the Milwaukee M18 B5 5.0Ah Battery weigh?
FAA:The battery weighs about 0.7 kg.
FQQ:What is included with the Milwaukee M18 B5 5.0Ah Battery?
FAA:One M18B5 18V 5.0Ah REDLITHIUM-ION battery is supplied.
Included:1x Milwaukee M18B5 18V 5.0Ah REDLITHIUM-ION Slide Battery
Brand:Milwaukee
Product name:Milwaukee M18B5 18V 5.0Ah REDLITHIUM-ION Slide Battery
Model number:M18 B5
Article number:4932430483
System compatibility:M18
Voltage:18V
Battery pack capacity:5.0Ah
Battery type:Li-Ion
Battery technology:REDLITHIUM-ION
Charge time with M12-18 FC charger:59 minutes
Weight:0.7kg
Supplied in:Blister
promo_image:https://store-hczpll0y.mybigcommerce.com/product_images/Mil_Free5ahBatt_1200-100%20%281%29.webp
promo_description:Spend £500 (Inc. VAT) on any Milwaukee M18 Tool, Storage, Clothing or Accessories and enter code FREEM18B5 at checkout.
promo_claim:Enter code FREEM18B5 at checkout when you reach the qualifying spend and your FREE battery will automatically be added at checkout.
promo_valid:Ends 31st August 2026 or while stocks last.
promo_btn_link:https://www.toolden.co.uk/tool-brands/milwaukee/
promo_terms:https://www.toolden.co.uk/promotions-terms-conditions/

Toolden is a Milwaukee Authorised Distributor. As an authorised distributor we strive to offer the best aftercare experience and make sure our customers get access to professional advice and full warranty benefits. For full warranty details, please click the link below.

More Info

Q: What is the capacity and voltage of the Milwaukee M18 B5 5.0Ah Battery?

A:

It is a 5.0Ah 18V Li-ion slide battery.

Q: Is the Milwaukee M18 B5 5.0Ah Battery compatible with Milwaukee M18 tools?

A:

Yes, it is part of the M18 system and is designed to work with Milwaukee M18 cordless tools.

Q: What performance gains does the Milwaukee M18 B5 5.0Ah Battery offer?

A:

It delivers up to 2.5 times more run time, up to 20% more power and up to twice the battery life compared with other Lithium-Ion technologies and/or previous Milwaukee battery technology. Results depend on the tool and application.

Q: What protection and electronics are built into the Milwaukee M18 B5 5.0Ah Battery?

A:

It features REDLITHIUM protection with REDLINK digital overload protection, a temperature management system, individual cell monitoring and discharge protection.

Q: Can I use the Milwaukee M18 B5 5.0Ah Battery in cold conditions?

A:

Yes, it can be used in extreme temperatures down to 20°C without compromising run time or battery life.

Q: Is the Milwaukee M18 B5 5.0Ah Battery resistant to water and impact?

A:

Yes, water protection routes water away from the electronics, and a durable metal frame with shock-responsive separators helps prevent pack failure from vibration or drops.

Q: Does the Milwaukee M18 B5 5.0Ah Battery have a fuel gauge?

A:

Yes, an on-board fuel gauge shows remaining charge to help you maximise run-time efficiency.

Q: How long does it take to charge the Milwaukee M18 B5 5.0Ah Battery?

A:

Approximate charge times are 59 minutes with M12-18 FC, M12-18 SC or M18 DFC chargers, and 100 minutes with M12-18 AC, M12-18 C or M1418C6 chargers.

Q: How much does the Milwaukee M18 B5 5.0Ah Battery weigh?

A:

The battery weighs about 0.7 kg.

Q: What is included with the Milwaukee M18 B5 5.0Ah Battery?

A:

One M18B5 18V 5.0Ah REDLITHIUM-ION battery is supplied.

Not right? Try one of these instead

Promotion:

Spend £500 (Inc. VAT) on any Milwaukee M18 Tool, Storage, Clothing or Accessories and enter code FREEM18B5 at checkout.

How To Claim:

Enter code FREEM18B5 at checkout when you reach the qualifying spend and your FREE battery will automatically be added at checkout.

Offer Valid:

Ends 31st August 2026 or while stocks last.

View All Eligible Products

Terms & Conditions:

To read the terms & conditions, please visit here.

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Milwaukee M18B5

Milwaukee M18 B5 18V 5.0Ah Redlithum-ion Slide Battery

MILM18B5

£68.59
inc VAT
£57.16
  ex.VAT
Adding to basket… The item has been added
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