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Milwaukee M18 B5 18V 5.0Ah Redlithium-Ion Slide Batteries (Twin Pack)

MILM18B5X2

We aim to dispatch within 3-5 working days. Free delivery for UK mainland orders over £100.
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Top Features:

  • 5.0Ah capacity provides extended runtime for Milwaukee M18 tools
  • REDLINK protection safeguards against overload and overheating
  • Individual cell monitoring maximises battery life and performance
  • Durable metal frame construction resists drops and vibration
  • Water protection enhances reliability in harsh environments
  • Operates in temperatures down to -20°C for all-weather performance
  • Integrated fuel gauge allows quick charge level checks
  • Twin pack keeps one battery in use while the other charges

Description

Milwaukee M18 B5 18V 5.0Ah Redlithium-Ion Slide Batteries (Twin Pack)

The Milwaukee M18 B5 18V 5.0Ah Redlithium-Ion Slide Batteries (Twin Pack) are high-capacity power sources designed to keep Milwaukee 18V cordless tools running longer on demanding jobs. Each 5.0Ah REDLITHIUM-ION battery delivers up to 2.5x more run time, up to 20% more power and up to 2x more battery life compared with previous Milwaukee battery technology, helping trade professionals maintain consistent performance throughout the working day. REDLINK digital overload protection and individual cell monitoring work together to protect both the battery and tool, while a durable metal frame with shock responsive separators resists damage from vibration and drops. Water protection routes moisture away from critical electronics, and reliable operation down to -20 °C makes these batteries suitable for harsh site conditions. An on-board fuel gauge allows quick checks of remaining charge to maximise productivity. Compatible with the full Milwaukee M18 system, the twin pack supplies 2x M18 B5 18V 5.0Ah Redlithium-Ion Slide Batteries.

4932430483 Features:

  • Milwaukee M18 B5 18V 5.0Ah Redlithium-Ion Slide Batteries (Twin Pack) deliver up to 2.5x more run time to keep 18V cordless tools working longer between charges.
  • REDLITHIUM-ION protection with Milwaukee REDLINK digital overload protection helps safeguard your cordless power tool investment in demanding jobsite conditions.
  • Individual cell monitoring optimises charge and discharge for maximum battery life and consistent performance.
  • Durable metal frame battery construction with shock responsive separators helps prevent pack failure from vibrations and drops on site.
  • Water protection routes moisture away from internal electronics to enhance reliability in harsh environments.
  • Reliable operation in extreme temperatures down to -20 °C helps maintain runtime and battery life in cold weather.
  • On-board battery fuel gauge allows quick charge level checks so users can plan battery changes and maximise productivity.
  • M18™ system compatibility means these batteries power the full Milwaukee M18 cordless range for flexible use across multiple tools.
  • 5.0Ah battery pack capacity provides a strong balance of runtime and manageable weight for everyday trade applications.
  • Twin pack format offers a ready-to-work solution, enabling one battery to be in use while the other is on charge.

Warranty Information

2 Year Manufacturer Warranty
See Full Description

Milwaukee M18 B5 18V 5.0Ah Redlithium-Ion Slide Batteries (Twin Pack)

MILM18B5X2

136.95 99.97 Sale
£136.95

You Save £36.98

£99.97
inc VAT
£83.31
  ex.VAT
Qty:
Adding to basket… The item has been added
We aim to dispatch within 3-5 working days.
Free delivery for UK mainland orders over £100.
Flexible Credit Find out more

Clearpay logoKlarna logoV12 logo

Top Features:

  • 5.0Ah capacity provides extended runtime for Milwaukee M18 tools
  • REDLINK protection safeguards against overload and overheating
  • Individual cell monitoring maximises battery life and performance
  • Durable metal frame construction resists drops and vibration
  • Water protection enhances reliability in harsh environments
  • Operates in temperatures down to -20°C for all-weather performance
  • Integrated fuel gauge allows quick charge level checks
  • Twin pack keeps one battery in use while the other charges
Read Product Description

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Product Description

Milwaukee M18 B5 18V 5.0Ah Redlithium-Ion Slide Batteries (Twin Pack)

The Milwaukee M18 B5 18V 5.0Ah Redlithium-Ion Slide Batteries (Twin Pack) are high-capacity power sources designed to keep Milwaukee 18V cordless tools running longer on demanding jobs. Each 5.0Ah REDLITHIUM-ION battery delivers up to 2.5x more run time, up to 20% more power and up to 2x more battery life compared with previous Milwaukee battery technology, helping trade professionals maintain consistent performance throughout the working day. REDLINK digital overload protection and individual cell monitoring work together to protect both the battery and tool, while a durable metal frame with shock responsive separators resists damage from vibration and drops. Water protection routes moisture away from critical electronics, and reliable operation down to -20 °C makes these batteries suitable for harsh site conditions. An on-board fuel gauge allows quick checks of remaining charge to maximise productivity. Compatible with the full Milwaukee M18 system, the twin pack supplies 2x M18 B5 18V 5.0Ah Redlithium-Ion Slide Batteries.

4932430483 Features:

  • Milwaukee M18 B5 18V 5.0Ah Redlithium-Ion Slide Batteries (Twin Pack) deliver up to 2.5x more run time to keep 18V cordless tools working longer between charges.
  • REDLITHIUM-ION protection with Milwaukee REDLINK digital overload protection helps safeguard your cordless power tool investment in demanding jobsite conditions.
  • Individual cell monitoring optimises charge and discharge for maximum battery life and consistent performance.
  • Durable metal frame battery construction with shock responsive separators helps prevent pack failure from vibrations and drops on site.
  • Water protection routes moisture away from internal electronics to enhance reliability in harsh environments.
  • Reliable operation in extreme temperatures down to -20 °C helps maintain runtime and battery life in cold weather.
  • On-board battery fuel gauge allows quick charge level checks so users can plan battery changes and maximise productivity.
  • M18™ system compatibility means these batteries power the full Milwaukee M18 cordless range for flexible use across multiple tools.
  • 5.0Ah battery pack capacity provides a strong balance of runtime and manageable weight for everyday trade applications.
  • Twin pack format offers a ready-to-work solution, enabling one battery to be in use while the other is on charge.

Warranty Information

2 Year Manufacturer Warranty

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 provides extended runtime for Milwaukee M18 tools
top_feature:REDLINK protection safeguards against overload and overheating
top_feature:Individual cell monitoring maximises battery life and performance
top_feature:Durable metal frame construction resists drops and vibration
top_feature:Water protection enhances reliability in harsh environments
top_feature:Operates in temperatures down to -20°C for all-weather performance
top_feature:Integrated fuel gauge allows quick charge level checks
top_feature:Twin pack keeps one battery in use while the other charges
FQQ:What comes in the Milwaukee M18 B5 18V 5.0Ah Redlithium-Ion Slide Batteries (Twin Pack)?
FAA:It includes 2 x Milwaukee M18 B5 18V 5.0Ah REDLITHIUM-ION slide batteries.
FQQ:Are the Milwaukee M18 B5 18V 5.0Ah Redlithium-Ion Slide Batteries (Twin Pack) compatible with all Milwaukee M18 tools?
FAA:Yes, they are part of the M18 system and power the full Milwaukee M18 cordless range.
FQQ:How long does it take to charge the Milwaukee M18 B5 18V 5.0Ah Redlithium-Ion Slide Batteries (Twin Pack)?
FAA:Approximate charge times are 100 minutes with the M12-18 AC or M12-18 C chargers, and about 59 minutes with the M12-18 FC or M12-18 SC chargers.
FQQ:Do the Milwaukee M18 B5 18V 5.0Ah Redlithium-Ion Slide Batteries (Twin Pack) have a charge level indicator?
FAA:Yes, an on-board fuel gauge shows the remaining charge to help you maximise run time.
FQQ:Can the Milwaukee M18 B5 18V 5.0Ah Redlithium-Ion Slide Batteries (Twin Pack) be used in cold weather?
FAA:Yes, they operate reliably in temperatures down to -20 °C without compromising run time or battery life.
FQQ:What performance benefits do the Milwaukee M18 B5 18V 5.0Ah Redlithium-Ion Slide Batteries (Twin Pack) offer?
FAA:They deliver up to 2.5x more run time, up to 20% more power and up to 2x more battery life, depending on the tool and application.
FQQ:What protection features are built into the Milwaukee M18 B5 18V 5.0Ah Redlithium-Ion Slide Batteries (Twin Pack)?
FAA:REDLINK digital overload protection helps prevent damage, and individual cell monitoring optimises charge and discharge for longer life and consistent performance.
FQQ:How robust is the construction of the Milwaukee M18 B5 18V 5.0Ah Redlithium-Ion Slide Batteries (Twin Pack)?
FAA:A durable metal frame and shock-responsive separators resist vibration and drops, and water protection routes moisture away from the electronics.
FQQ:What are the capacity and voltage of each battery in the Milwaukee M18 B5 18V 5.0Ah Redlithium-Ion Slide Batteries (Twin Pack)?
FAA:Each pack is 18V with a 5.0Ah capacity.
FQQ:What is the Milwaukee article or part number for the Milwaukee M18 B5 18V 5.0Ah Redlithium-Ion Slide Batteries (Twin Pack)?
FAA:The article number is 4932430483.
Included:2x Milwaukee M18 B5 18V 5.0Ah Redlithium-Ion Slide Batteries
Brand:Milwaukee
Product name:Milwaukee M18 B5 18V 5.0Ah Redlithium-Ion Slide Batteries (Twin Pack)
System compatibility:M18
Battery type:Li-ion
Battery pack capacity:5.0Ah
Voltage:18V
Article number:4932430483
Charge time with M12-18 AC charger:100 min
Charge time with M12-18 C charger:100 min
Charge time with M12-18 FC charger:59 min
Charge time with M12-18 SC charger:59 min
Charge time with M1418C6 charger:100 min
Charge time with M18 DFC charger:59 min
Weight per battery:0.7kg
Number of batteries in pack:2
Battery level indicator:Yes
Safety cut out:REDLINK overload protection
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 comes in the Milwaukee M18 B5 18V 5.0Ah Redlithium-Ion Slide Batteries (Twin Pack)?

A:

It includes 2 x Milwaukee M18 B5 18V 5.0Ah REDLITHIUM-ION slide batteries.

Q: Are the Milwaukee M18 B5 18V 5.0Ah Redlithium-Ion Slide Batteries (Twin Pack) compatible with all Milwaukee M18 tools?

A:

Yes, they are part of the M18 system and power the full Milwaukee M18 cordless range.

Q: How long does it take to charge the Milwaukee M18 B5 18V 5.0Ah Redlithium-Ion Slide Batteries (Twin Pack)?

A:

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

Q: Do the Milwaukee M18 B5 18V 5.0Ah Redlithium-Ion Slide Batteries (Twin Pack) have a charge level indicator?

A:

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

Q: Can the Milwaukee M18 B5 18V 5.0Ah Redlithium-Ion Slide Batteries (Twin Pack) be used in cold weather?

A:

Yes, they operate reliably in temperatures down to -20 °C without compromising run time or battery life.

Q: What performance benefits do the Milwaukee M18 B5 18V 5.0Ah Redlithium-Ion Slide Batteries (Twin Pack) offer?

A:

They deliver up to 2.5x more run time, up to 20% more power and up to 2x more battery life, depending on the tool and application.

Q: What protection features are built into the Milwaukee M18 B5 18V 5.0Ah Redlithium-Ion Slide Batteries (Twin Pack)?

A:

REDLINK digital overload protection helps prevent damage, and individual cell monitoring optimises charge and discharge for longer life and consistent performance.

Q: How robust is the construction of the Milwaukee M18 B5 18V 5.0Ah Redlithium-Ion Slide Batteries (Twin Pack)?

A:

A durable metal frame and shock-responsive separators resist vibration and drops, and water protection routes moisture away from the electronics.

Q: What are the capacity and voltage of each battery in the Milwaukee M18 B5 18V 5.0Ah Redlithium-Ion Slide Batteries (Twin Pack)?

A:

Each pack is 18V with a 5.0Ah capacity.

Q: What is the Milwaukee article or part number for the Milwaukee M18 B5 18V 5.0Ah Redlithium-Ion Slide Batteries (Twin Pack)?

A:

The article number is 4932430483.

Milwaukee M18 B5 18V 5.0Ah Redlithium-Ion Slide Batteries (Twin Pack)

The Milwaukee M18 B5 18V 5.0Ah Redlithium-Ion Slide Batteries (Twin Pack) are high-capacity power sources designed to keep Milwaukee 18V cordless tools running longer on demanding jobs. Each 5.0Ah REDLITHIUM-ION battery delivers up to 2.5x more run time, up to 20% more power and up to 2x more battery life compared with previous Milwaukee battery technology, helping trade professionals maintain consistent performance throughout the working day. REDLINK digital overload protection and individual cell monitoring work together to protect both the battery and tool, while a durable metal frame with shock responsive separators resists damage from vibration and drops. Water protection routes moisture away from critical electronics, and reliable operation down to -20 °C makes these batteries suitable for harsh site conditions. An on-board fuel gauge allows quick checks of remaining charge to maximise productivity. Compatible with the full Milwaukee M18 system, the twin pack supplies 2x M18 B5 18V 5.0Ah Redlithium-Ion Slide Batteries.

4932430483 Features:

  • Milwaukee M18 B5 18V 5.0Ah Redlithium-Ion Slide Batteries (Twin Pack) deliver up to 2.5x more run time to keep 18V cordless tools working longer between charges.
  • REDLITHIUM-ION protection with Milwaukee REDLINK digital overload protection helps safeguard your cordless power tool investment in demanding jobsite conditions.
  • Individual cell monitoring optimises charge and discharge for maximum battery life and consistent performance.
  • Durable metal frame battery construction with shock responsive separators helps prevent pack failure from vibrations and drops on site.
  • Water protection routes moisture away from internal electronics to enhance reliability in harsh environments.
  • Reliable operation in extreme temperatures down to -20 °C helps maintain runtime and battery life in cold weather.
  • On-board battery fuel gauge allows quick charge level checks so users can plan battery changes and maximise productivity.
  • M18™ system compatibility means these batteries power the full Milwaukee M18 cordless range for flexible use across multiple tools.
  • 5.0Ah battery pack capacity provides a strong balance of runtime and manageable weight for everyday trade applications.
  • Twin pack format offers a ready-to-work solution, enabling one battery to be in use while the other is on charge.

Warranty Information

2 Year Manufacturer Warranty
  • 2x Milwaukee M18 B5 18V 5.0Ah Redlithium-Ion Slide Batteries
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 provides extended runtime for Milwaukee M18 tools
top_feature:REDLINK protection safeguards against overload and overheating
top_feature:Individual cell monitoring maximises battery life and performance
top_feature:Durable metal frame construction resists drops and vibration
top_feature:Water protection enhances reliability in harsh environments
top_feature:Operates in temperatures down to -20°C for all-weather performance
top_feature:Integrated fuel gauge allows quick charge level checks
top_feature:Twin pack keeps one battery in use while the other charges
FQQ:What comes in the Milwaukee M18 B5 18V 5.0Ah Redlithium-Ion Slide Batteries (Twin Pack)?
FAA:It includes 2 x Milwaukee M18 B5 18V 5.0Ah REDLITHIUM-ION slide batteries.
FQQ:Are the Milwaukee M18 B5 18V 5.0Ah Redlithium-Ion Slide Batteries (Twin Pack) compatible with all Milwaukee M18 tools?
FAA:Yes, they are part of the M18 system and power the full Milwaukee M18 cordless range.
FQQ:How long does it take to charge the Milwaukee M18 B5 18V 5.0Ah Redlithium-Ion Slide Batteries (Twin Pack)?
FAA:Approximate charge times are 100 minutes with the M12-18 AC or M12-18 C chargers, and about 59 minutes with the M12-18 FC or M12-18 SC chargers.
FQQ:Do the Milwaukee M18 B5 18V 5.0Ah Redlithium-Ion Slide Batteries (Twin Pack) have a charge level indicator?
FAA:Yes, an on-board fuel gauge shows the remaining charge to help you maximise run time.
FQQ:Can the Milwaukee M18 B5 18V 5.0Ah Redlithium-Ion Slide Batteries (Twin Pack) be used in cold weather?
FAA:Yes, they operate reliably in temperatures down to -20 °C without compromising run time or battery life.
FQQ:What performance benefits do the Milwaukee M18 B5 18V 5.0Ah Redlithium-Ion Slide Batteries (Twin Pack) offer?
FAA:They deliver up to 2.5x more run time, up to 20% more power and up to 2x more battery life, depending on the tool and application.
FQQ:What protection features are built into the Milwaukee M18 B5 18V 5.0Ah Redlithium-Ion Slide Batteries (Twin Pack)?
FAA:REDLINK digital overload protection helps prevent damage, and individual cell monitoring optimises charge and discharge for longer life and consistent performance.
FQQ:How robust is the construction of the Milwaukee M18 B5 18V 5.0Ah Redlithium-Ion Slide Batteries (Twin Pack)?
FAA:A durable metal frame and shock-responsive separators resist vibration and drops, and water protection routes moisture away from the electronics.
FQQ:What are the capacity and voltage of each battery in the Milwaukee M18 B5 18V 5.0Ah Redlithium-Ion Slide Batteries (Twin Pack)?
FAA:Each pack is 18V with a 5.0Ah capacity.
FQQ:What is the Milwaukee article or part number for the Milwaukee M18 B5 18V 5.0Ah Redlithium-Ion Slide Batteries (Twin Pack)?
FAA:The article number is 4932430483.
Included:2x Milwaukee M18 B5 18V 5.0Ah Redlithium-Ion Slide Batteries
Brand:Milwaukee
Product name:Milwaukee M18 B5 18V 5.0Ah Redlithium-Ion Slide Batteries (Twin Pack)
System compatibility:M18
Battery type:Li-ion
Battery pack capacity:5.0Ah
Voltage:18V
Article number:4932430483
Charge time with M12-18 AC charger:100 min
Charge time with M12-18 C charger:100 min
Charge time with M12-18 FC charger:59 min
Charge time with M12-18 SC charger:59 min
Charge time with M1418C6 charger:100 min
Charge time with M18 DFC charger:59 min
Weight per battery:0.7kg
Number of batteries in pack:2
Battery level indicator:Yes
Safety cut out:REDLINK overload protection
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

V12 finance options available on applicable baskets over £280

Q: What comes in the Milwaukee M18 B5 18V 5.0Ah Redlithium-Ion Slide Batteries (Twin Pack)?

A:

It includes 2 x Milwaukee M18 B5 18V 5.0Ah REDLITHIUM-ION slide batteries.

Q: Are the Milwaukee M18 B5 18V 5.0Ah Redlithium-Ion Slide Batteries (Twin Pack) compatible with all Milwaukee M18 tools?

A:

Yes, they are part of the M18 system and power the full Milwaukee M18 cordless range.

Q: How long does it take to charge the Milwaukee M18 B5 18V 5.0Ah Redlithium-Ion Slide Batteries (Twin Pack)?

A:

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

Q: Do the Milwaukee M18 B5 18V 5.0Ah Redlithium-Ion Slide Batteries (Twin Pack) have a charge level indicator?

A:

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

Q: Can the Milwaukee M18 B5 18V 5.0Ah Redlithium-Ion Slide Batteries (Twin Pack) be used in cold weather?

A:

Yes, they operate reliably in temperatures down to -20 °C without compromising run time or battery life.

Q: What performance benefits do the Milwaukee M18 B5 18V 5.0Ah Redlithium-Ion Slide Batteries (Twin Pack) offer?

A:

They deliver up to 2.5x more run time, up to 20% more power and up to 2x more battery life, depending on the tool and application.

Q: What protection features are built into the Milwaukee M18 B5 18V 5.0Ah Redlithium-Ion Slide Batteries (Twin Pack)?

A:

REDLINK digital overload protection helps prevent damage, and individual cell monitoring optimises charge and discharge for longer life and consistent performance.

Q: How robust is the construction of the Milwaukee M18 B5 18V 5.0Ah Redlithium-Ion Slide Batteries (Twin Pack)?

A:

A durable metal frame and shock-responsive separators resist vibration and drops, and water protection routes moisture away from the electronics.

Q: What are the capacity and voltage of each battery in the Milwaukee M18 B5 18V 5.0Ah Redlithium-Ion Slide Batteries (Twin Pack)?

A:

Each pack is 18V with a 5.0Ah capacity.

Q: What is the Milwaukee article or part number for the Milwaukee M18 B5 18V 5.0Ah Redlithium-Ion Slide Batteries (Twin Pack)?

A:

The article number is 4932430483.

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 M18 B5 18V 5.0Ah Redlithium-Ion Slide Battery (Twin Pack)

Milwaukee M18 B5 18V 5.0Ah Redlithium-Ion Slide Batteries (Twin Pack)

MILM18B5X2

£136.95
£99.97
inc VAT
£83.31
  ex.VAT
(You save £36.98 )
Adding to basket… The item has been added
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