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Milwaukee M18 HB5.5 18V 5.5Ah High Output Redlithum-ion Battery

MILM18B55

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Top Features:

  • 5.5Ah HIGH OUTPUT battery delivers up to 50% more power
  • Runs cooler than standard M18 batteries during demanding applications
  • REDLINK intelligence protects against overload and overheating
  • Extended runtime reduces interruptions for battery changes
  • Metal frame construction improves durability against impacts and vibration
  • Integrated fuel gauge shows remaining charge at a glance
  • Individual cell monitoring maximises battery performance and lifespan
  • Compatible with the entire Milwaukee M18 cordless platform

Description

Milwaukee M18 HB5.5 18V 5.5Ah High Output Redlithum-ion Battery

The Milwaukee M18 HB5.5 18V 5.5Ah High Output Redlithum-ion Battery is a high-performance power tool battery designed to drive the full range of Milwaukee M18 cordless tools harder and for longer. Built for professional trade use, it combines a compact footprint with increased power to support demanding cutting, drilling and fastening tasks across the jobsite. HIGH OUTPUT™ cell technology and REDLINK™ intelligence deliver up to 50% more power than standard M18 REDLITHIUM packs while running significantly cooler under heavy load, helping to maintain consistent performance and reduce downtime. A robust metal frame with shock responsive separators improves resistance to vibration and impact, and individual cell monitoring optimises charge and discharge for long service life. An on-board fuel gauge allows quick checks of remaining runtime so users can plan work efficiently. The Milwaukee M18 HB5.5 18V 5.5Ah High Output Redlithum-ion Battery is compatible with all tools in the M18 system and is supplied as a single battery pack without charger or tools.

4932464712 Features:

  • M18™ HIGH OUTPUT™ 5.5 Ah battery pack delivers up to 50% more power for demanding cordless applications
  • REDLINK™ intelligence monitors the Milwaukee M18 HB5.5 18V 5.5Ah High Output Redlithum-ion Battery to protect against overload and overheating
  • Runs up to 50% cooler than standard M18™ REDLITHIUM™ packs, helping to maintain performance during heavy cutting and drilling
  • 5.5 Ah capacity provides extended runtime, reducing downtime for recharging on busy jobsites
  • Durable metal frame battery construction with shock responsive separators helps prevent pack failure from vibration and drops
  • On-board battery fuel gauge allows quick checking of remaining charge to maximise productivity
  • Individual cell monitoring optimises charge and discharge for long battery service life
  • Fully compatible with the entire Milwaukee M18™ cordless system of tools and accessories
  • 18 V Li-ion technology offers reliable power delivery with no memory effect
  • Designed as a robust accessory for professional power tools in the Accessories/Batteries & Chargers /Batteries category

Warranty Information

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

Milwaukee M18 HB5.5 18V 5.5Ah High Output Redlithum-ion Battery

MILM18B55

95.99 92.15 Sale
£95.99

You Save £3.84

£92.15
inc VAT
£76.79
  ex.VAT
Quantity Price Per Unit (Inc.VAT) Price Per Unit (Ex.VAT) Discount
Buy 2 - 2 £90.31 £75.25 2%
Buy 3 - 3 £89.39 £74.49 3%
Buy 4 - 4 £88.46 £73.72 4%
Buy 5 - 9999 £87.54 £72.95 5%
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:

  • 5.5Ah HIGH OUTPUT battery delivers up to 50% more power
  • Runs cooler than standard M18 batteries during demanding applications
  • REDLINK intelligence protects against overload and overheating
  • Extended runtime reduces interruptions for battery changes
  • Metal frame construction improves durability against impacts and vibration
  • Integrated fuel gauge shows remaining charge at a glance
  • Individual cell monitoring maximises battery performance and lifespan
  • Compatible with the entire Milwaukee M18 cordless platform
Read Product Description

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Product Description

Milwaukee M18 HB5.5 18V 5.5Ah High Output Redlithum-ion Battery

The Milwaukee M18 HB5.5 18V 5.5Ah High Output Redlithum-ion Battery is a high-performance power tool battery designed to drive the full range of Milwaukee M18 cordless tools harder and for longer. Built for professional trade use, it combines a compact footprint with increased power to support demanding cutting, drilling and fastening tasks across the jobsite. HIGH OUTPUT™ cell technology and REDLINK™ intelligence deliver up to 50% more power than standard M18 REDLITHIUM packs while running significantly cooler under heavy load, helping to maintain consistent performance and reduce downtime. A robust metal frame with shock responsive separators improves resistance to vibration and impact, and individual cell monitoring optimises charge and discharge for long service life. An on-board fuel gauge allows quick checks of remaining runtime so users can plan work efficiently. The Milwaukee M18 HB5.5 18V 5.5Ah High Output Redlithum-ion Battery is compatible with all tools in the M18 system and is supplied as a single battery pack without charger or tools.

4932464712 Features:

  • M18™ HIGH OUTPUT™ 5.5 Ah battery pack delivers up to 50% more power for demanding cordless applications
  • REDLINK™ intelligence monitors the Milwaukee M18 HB5.5 18V 5.5Ah High Output Redlithum-ion Battery to protect against overload and overheating
  • Runs up to 50% cooler than standard M18™ REDLITHIUM™ packs, helping to maintain performance during heavy cutting and drilling
  • 5.5 Ah capacity provides extended runtime, reducing downtime for recharging on busy jobsites
  • Durable metal frame battery construction with shock responsive separators helps prevent pack failure from vibration and drops
  • On-board battery fuel gauge allows quick checking of remaining charge to maximise productivity
  • Individual cell monitoring optimises charge and discharge for long battery service life
  • Fully compatible with the entire Milwaukee M18™ cordless system of tools and accessories
  • 18 V Li-ion technology offers reliable power delivery with no memory effect
  • Designed as a robust accessory for professional power tools in the Accessories/Batteries & Chargers /Batteries category

Warranty Information

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

Specification

pdp:https://store-hczpll0y.mybigcommerce.com/content/Thumbnails/Redemptions/September26/Milwaukee%20M18%20Offer%20Ext/MIL_FreeM18-ExtendedXTKB.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:5.5Ah HIGH OUTPUT battery delivers up to 50% more power
top_feature:Runs cooler than standard M18 batteries during demanding applications
top_feature:REDLINK intelligence protects against overload and overheating
top_feature:Extended runtime reduces interruptions for battery changes
top_feature:Metal frame construction improves durability against impacts and vibration
top_feature:Integrated fuel gauge shows remaining charge at a glance
top_feature:Individual cell monitoring maximises battery performance and lifespan
top_feature:Compatible with the entire Milwaukee M18 cordless platform
FQQ:What is the capacity and voltage of the Milwaukee M18 HB5.5 18V 5.5Ah High Output Redlithum-ion Battery?
FAA:It is an 18V, 5.5Ah REDLITHIUM-ION battery.
FQQ:Is the Milwaukee M18 HB5.5 18V 5.5Ah High Output Redlithum-ion Battery compatible with all Milwaukee M18 tools?
FAA:Yes, it is compatible with every tool in the M18 range.
FQQ:How much more power does the Milwaukee M18 HB5.5 18V 5.5Ah High Output Redlithum-ion Battery provide compared with standard M18 REDLITHIUM batteries?
FAA:It delivers up to 50% more power than standard M18 REDLITHIUM packs.
FQQ:Does the Milwaukee M18 HB5.5 18V 5.5Ah High Output Redlithum-ion Battery run cooler than standard packs?
FAA:Yes, it runs up to 50% cooler under heavy applications.
FQQ:Is the Milwaukee M18 HB5.5 18V 5.5Ah High Output Redlithum-ion Battery designed for demanding, corded-tool replacement work?
FAA:Yes, it is engineered to drive complete corded replacement on site with increased run time.
FQQ:What protective technologies are built into the Milwaukee M18 HB5.5 18V 5.5Ah High Output Redlithum-ion Battery?
FAA:It features REDLINK intelligence, a durable metal frame with shock-responsive separators, and individual cell monitoring to maximise life.
FQQ:Does the Milwaukee M18 HB5.5 18V 5.5Ah High Output Redlithum-ion Battery have an on-board fuel gauge?
FAA:Yes, the on-board fuel gauge helps you maximise run-time efficiency and check charge status.
FQQ:Is the Milwaukee M18 HB5.5 18V 5.5Ah High Output Redlithum-ion Battery protected against water ingress?
FAA:Yes, water protection routes water away from the electronics and out of the pack.
FQQ:How long does the Milwaukee M18 HB5.5 18V 5.5Ah High Output Redlithum-ion Battery take to charge on a Milwaukee M12-18 FC Rapid Charger?
FAA:Approximate charge time is 60 minutes on the M12-18 FC charger.
FQQ:Can the Milwaukee M18 HB5.5 18V 5.5Ah High Output Redlithum-ion Battery be charged with a third-party charger?
FAA:No, authentic M18 batteries should be charged only on Milwaukee M18 chargers.
Included:1x Milwaukee M18HB5.5 18V 5.5Ah HIGH OUTPUT REDLITHIUM Battery
Brand:Milwaukee
Model:M18 HB5.5
Article number:4932464712
Battery type:Li-ion
Battery system:M18
Voltage:18 V
Battery pack capacity:5.5 Ah
Charge time with M12-18 AC charger:130 min
Charge time with M12-18 C charger:115 min
Charge time with M12-18 FC charger:60 min
Charge time with M12-18 SC charger:35 min
Charge time with M1418C6 charger:125 min
Charge time with M18 DFC charger:60 min
No. of batteries supplied:1
Supplied in:No kitbox or bag supplied
Weight:1.1 kg
promo-box:https://cdn11.bigcommerce.com/s-hczpll0y/images/stencil/original/image-manager/bulkbuy-badge-copy-10-0.5x-8.png
promo_image:https://cdn11.bigcommerce.com/s-hczpll0y/images/stencil/original/c/mil_freebatterym18-extended-1200-100%20%281%29__17217.original.jpg
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 30th September 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/

Frequently Asked Questions

Q: What is the capacity and voltage of the Milwaukee M18 HB5.5 18V 5.5Ah High Output Redlithum-ion Battery?

A:

It is an 18V, 5.5Ah REDLITHIUM-ION battery.

Q: Is the Milwaukee M18 HB5.5 18V 5.5Ah High Output Redlithum-ion Battery compatible with all Milwaukee M18 tools?

A:

Yes, it is compatible with every tool in the M18 range.

Q: How much more power does the Milwaukee M18 HB5.5 18V 5.5Ah High Output Redlithum-ion Battery provide compared with standard M18 REDLITHIUM batteries?

A:

It delivers up to 50% more power than standard M18 REDLITHIUM packs.

Q: Does the Milwaukee M18 HB5.5 18V 5.5Ah High Output Redlithum-ion Battery run cooler than standard packs?

A:

Yes, it runs up to 50% cooler under heavy applications.

Q: Is the Milwaukee M18 HB5.5 18V 5.5Ah High Output Redlithum-ion Battery designed for demanding, corded-tool replacement work?

A:

Yes, it is engineered to drive complete corded replacement on site with increased run time.

Q: What protective technologies are built into the Milwaukee M18 HB5.5 18V 5.5Ah High Output Redlithum-ion Battery?

A:

It features REDLINK intelligence, a durable metal frame with shock-responsive separators, and individual cell monitoring to maximise life.

Q: Does the Milwaukee M18 HB5.5 18V 5.5Ah High Output Redlithum-ion Battery have an on-board fuel gauge?

A:

Yes, the on-board fuel gauge helps you maximise run-time efficiency and check charge status.

Q: Is the Milwaukee M18 HB5.5 18V 5.5Ah High Output Redlithum-ion Battery protected against water ingress?

A:

Yes, water protection routes water away from the electronics and out of the pack.

Q: How long does the Milwaukee M18 HB5.5 18V 5.5Ah High Output Redlithum-ion Battery take to charge on a Milwaukee M12-18 FC Rapid Charger?

A:

Approximate charge time is 60 minutes on the M12-18 FC charger.

Q: Can the Milwaukee M18 HB5.5 18V 5.5Ah High Output Redlithum-ion Battery be charged with a third-party charger?

A:

No, authentic M18 batteries should be charged only on Milwaukee M18 chargers.

Milwaukee M18 HB5.5 18V 5.5Ah High Output Redlithum-ion Battery

The Milwaukee M18 HB5.5 18V 5.5Ah High Output Redlithum-ion Battery is a high-performance power tool battery designed to drive the full range of Milwaukee M18 cordless tools harder and for longer. Built for professional trade use, it combines a compact footprint with increased power to support demanding cutting, drilling and fastening tasks across the jobsite. HIGH OUTPUT™ cell technology and REDLINK™ intelligence deliver up to 50% more power than standard M18 REDLITHIUM packs while running significantly cooler under heavy load, helping to maintain consistent performance and reduce downtime. A robust metal frame with shock responsive separators improves resistance to vibration and impact, and individual cell monitoring optimises charge and discharge for long service life. An on-board fuel gauge allows quick checks of remaining runtime so users can plan work efficiently. The Milwaukee M18 HB5.5 18V 5.5Ah High Output Redlithum-ion Battery is compatible with all tools in the M18 system and is supplied as a single battery pack without charger or tools.

4932464712 Features:

  • M18™ HIGH OUTPUT™ 5.5 Ah battery pack delivers up to 50% more power for demanding cordless applications
  • REDLINK™ intelligence monitors the Milwaukee M18 HB5.5 18V 5.5Ah High Output Redlithum-ion Battery to protect against overload and overheating
  • Runs up to 50% cooler than standard M18™ REDLITHIUM™ packs, helping to maintain performance during heavy cutting and drilling
  • 5.5 Ah capacity provides extended runtime, reducing downtime for recharging on busy jobsites
  • Durable metal frame battery construction with shock responsive separators helps prevent pack failure from vibration and drops
  • On-board battery fuel gauge allows quick checking of remaining charge to maximise productivity
  • Individual cell monitoring optimises charge and discharge for long battery service life
  • Fully compatible with the entire Milwaukee M18™ cordless system of tools and accessories
  • 18 V Li-ion technology offers reliable power delivery with no memory effect
  • Designed as a robust accessory for professional power tools in the Accessories/Batteries & Chargers /Batteries category

Warranty Information

1 Year Standard Warranty (Extendable to 2 Years With Registration)
  • 1x Milwaukee M18HB5.5 18V 5.5Ah HIGH OUTPUT REDLITHIUM Battery
pdp:https://store-hczpll0y.mybigcommerce.com/content/Thumbnails/Redemptions/September26/Milwaukee%20M18%20Offer%20Ext/MIL_FreeM18-ExtendedXTKB.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:5.5Ah HIGH OUTPUT battery delivers up to 50% more power
top_feature:Runs cooler than standard M18 batteries during demanding applications
top_feature:REDLINK intelligence protects against overload and overheating
top_feature:Extended runtime reduces interruptions for battery changes
top_feature:Metal frame construction improves durability against impacts and vibration
top_feature:Integrated fuel gauge shows remaining charge at a glance
top_feature:Individual cell monitoring maximises battery performance and lifespan
top_feature:Compatible with the entire Milwaukee M18 cordless platform
FQQ:What is the capacity and voltage of the Milwaukee M18 HB5.5 18V 5.5Ah High Output Redlithum-ion Battery?
FAA:It is an 18V, 5.5Ah REDLITHIUM-ION battery.
FQQ:Is the Milwaukee M18 HB5.5 18V 5.5Ah High Output Redlithum-ion Battery compatible with all Milwaukee M18 tools?
FAA:Yes, it is compatible with every tool in the M18 range.
FQQ:How much more power does the Milwaukee M18 HB5.5 18V 5.5Ah High Output Redlithum-ion Battery provide compared with standard M18 REDLITHIUM batteries?
FAA:It delivers up to 50% more power than standard M18 REDLITHIUM packs.
FQQ:Does the Milwaukee M18 HB5.5 18V 5.5Ah High Output Redlithum-ion Battery run cooler than standard packs?
FAA:Yes, it runs up to 50% cooler under heavy applications.
FQQ:Is the Milwaukee M18 HB5.5 18V 5.5Ah High Output Redlithum-ion Battery designed for demanding, corded-tool replacement work?
FAA:Yes, it is engineered to drive complete corded replacement on site with increased run time.
FQQ:What protective technologies are built into the Milwaukee M18 HB5.5 18V 5.5Ah High Output Redlithum-ion Battery?
FAA:It features REDLINK intelligence, a durable metal frame with shock-responsive separators, and individual cell monitoring to maximise life.
FQQ:Does the Milwaukee M18 HB5.5 18V 5.5Ah High Output Redlithum-ion Battery have an on-board fuel gauge?
FAA:Yes, the on-board fuel gauge helps you maximise run-time efficiency and check charge status.
FQQ:Is the Milwaukee M18 HB5.5 18V 5.5Ah High Output Redlithum-ion Battery protected against water ingress?
FAA:Yes, water protection routes water away from the electronics and out of the pack.
FQQ:How long does the Milwaukee M18 HB5.5 18V 5.5Ah High Output Redlithum-ion Battery take to charge on a Milwaukee M12-18 FC Rapid Charger?
FAA:Approximate charge time is 60 minutes on the M12-18 FC charger.
FQQ:Can the Milwaukee M18 HB5.5 18V 5.5Ah High Output Redlithum-ion Battery be charged with a third-party charger?
FAA:No, authentic M18 batteries should be charged only on Milwaukee M18 chargers.
Included:1x Milwaukee M18HB5.5 18V 5.5Ah HIGH OUTPUT REDLITHIUM Battery
Brand:Milwaukee
Model:M18 HB5.5
Article number:4932464712
Battery type:Li-ion
Battery system:M18
Voltage:18 V
Battery pack capacity:5.5 Ah
Charge time with M12-18 AC charger:130 min
Charge time with M12-18 C charger:115 min
Charge time with M12-18 FC charger:60 min
Charge time with M12-18 SC charger:35 min
Charge time with M1418C6 charger:125 min
Charge time with M18 DFC charger:60 min
No. of batteries supplied:1
Supplied in:No kitbox or bag supplied
Weight:1.1 kg
promo-box:https://cdn11.bigcommerce.com/s-hczpll0y/images/stencil/original/image-manager/bulkbuy-badge-copy-10-0.5x-8.png
promo_image:https://cdn11.bigcommerce.com/s-hczpll0y/images/stencil/original/c/mil_freebatterym18-extended-1200-100%20%281%29__17217.original.jpg
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 30th September 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 is the capacity and voltage of the Milwaukee M18 HB5.5 18V 5.5Ah High Output Redlithum-ion Battery?

A:

It is an 18V, 5.5Ah REDLITHIUM-ION battery.

Q: Is the Milwaukee M18 HB5.5 18V 5.5Ah High Output Redlithum-ion Battery compatible with all Milwaukee M18 tools?

A:

Yes, it is compatible with every tool in the M18 range.

Q: How much more power does the Milwaukee M18 HB5.5 18V 5.5Ah High Output Redlithum-ion Battery provide compared with standard M18 REDLITHIUM batteries?

A:

It delivers up to 50% more power than standard M18 REDLITHIUM packs.

Q: Does the Milwaukee M18 HB5.5 18V 5.5Ah High Output Redlithum-ion Battery run cooler than standard packs?

A:

Yes, it runs up to 50% cooler under heavy applications.

Q: Is the Milwaukee M18 HB5.5 18V 5.5Ah High Output Redlithum-ion Battery designed for demanding, corded-tool replacement work?

A:

Yes, it is engineered to drive complete corded replacement on site with increased run time.

Q: What protective technologies are built into the Milwaukee M18 HB5.5 18V 5.5Ah High Output Redlithum-ion Battery?

A:

It features REDLINK intelligence, a durable metal frame with shock-responsive separators, and individual cell monitoring to maximise life.

Q: Does the Milwaukee M18 HB5.5 18V 5.5Ah High Output Redlithum-ion Battery have an on-board fuel gauge?

A:

Yes, the on-board fuel gauge helps you maximise run-time efficiency and check charge status.

Q: Is the Milwaukee M18 HB5.5 18V 5.5Ah High Output Redlithum-ion Battery protected against water ingress?

A:

Yes, water protection routes water away from the electronics and out of the pack.

Q: How long does the Milwaukee M18 HB5.5 18V 5.5Ah High Output Redlithum-ion Battery take to charge on a Milwaukee M12-18 FC Rapid Charger?

A:

Approximate charge time is 60 minutes on the M12-18 FC charger.

Q: Can the Milwaukee M18 HB5.5 18V 5.5Ah High Output Redlithum-ion Battery be charged with a third-party charger?

A:

No, authentic M18 batteries should be charged only on Milwaukee M18 chargers.

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 30th September 2026 or while stocks last.

View All Eligible Products

Terms & Conditions:

To read the terms & conditions, please visit here.

Adding to basket… The item has been added
Milwaukee 4932464712

Milwaukee M18 HB5.5 18V 5.5Ah High Output Redlithum-ion Battery

MILM18B55

£95.99
£92.15
inc VAT
£76.79
  ex.VAT
(You save £3.84 )
Adding to basket… The item has been added
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