1/6

Product image Watch Product Video

Milwaukee M18 FB12 FORGE 12.0Ah Battery

4932492651

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:

  • REDLITHIUM FORGE battery technology delivers Milwaukee's highest-performing M18 battery platform
  • Provides up to 50% more power than the M18 HIGH OUTPUT 12.0Ah battery
  • 12.0Ah capacity supports extended runtime in demanding cordless applications
  • COOL-CYCLE active cooling accelerates charging and reduces downtime
  • Super charging capability reaches 80% in 35 minutes and full charge in 45 minutes
  • REDLINK intelligence optimises battery performance and protection
  • Durable housing resists oils, solvents and harsh jobsite conditions
  • Compatible with all Milwaukee M18 cordless power tools

Description

Milwaukee M18 FB12 FORGE 12.0Ah Battery

The Milwaukee M18 FB12 FORGE 12.0Ah Battery is a high-capacity 18V REDLITHIUM™ FORGE™ pack designed to power M18™ cordless tools through the toughest professional applications. Built around stacked power cells and improved pack construction, it delivers up to 50% more power than the M18™ HIGH OUTPUT™ 12.0 Ah battery while maintaining a compact footprint for better handling on heavy tools. The COOL-CYCLE™ active cooling system works with compatible super chargers to cool the pack during charging, achieving up to 80% charge in 35 minutes and a full charge in around 45 minutes to minimise downtime on site. A robust, oil-, solvent- and grease-resistant housing offers excellent protection against harsh jobsite and weather conditions, while REDLINK™ intelligence manages performance and overload protection across the tool, battery and charger. With an enhanced, sunlight-readable fuel gauge and full compatibility with all Milwaukee M18™ tools, this 12.0Ah battery is a powerful energy source for saws, grinders, outdoor equipment and other high-demand trade tools.

4932492651 Features:

  • Delivers up to 50% more power than the M18™ HIGH OUTPUT™ 12.0 Ah battery, helping trades maximise performance on demanding tools.
  • REDLITHIUM™ FORGE™ battery technology provides Milwaukee’s most powerful, fastest charging and longest life packs for consistent jobsite productivity.
  • 12.0 Ah high-capacity pack offers extended runtime, ideal for high-drain applications such as saws, grinders and outdoor equipment.
  • COOL-CYCLE™ active cooling system rapidly cools the pack during charging to reduce downtime between tasks.
  • Super charge capability delivers up to 80% charge in 35 minutes and a full charge in 45 minutes when used with the M18™ dual bay super charger.
  • Durable, oil-, solvent- and grease-resistant housing is engineered to withstand tough jobsite, weather and environmental conditions.
  • Enhanced onboard fuel gauge improves visibility in direct sunlight, allowing users to plan battery changes more accurately.
  • Integrated REDLINK™ intelligence optimises performance and provides overload protection through communication between tool, battery and charger.
  • Fully compatible with all Milwaukee M18™ cordless tools, allowing the battery to be shared across an entire 18V system.
  • Stacked power cell design and improved pack construction increase efficiency and pack life compared with previous cylindrical-cell designs.

Warranty Information

2 Year Standard Warranty (Extendable to 3 Years With Registration)
See Full Description

Milwaukee M18 FB12 FORGE 12.0Ah Battery

4932492651

234.27 215.53 Sale
£234.27

You Save £18.74

£215.53
inc VAT
£179.61
  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:

  • REDLITHIUM FORGE battery technology delivers Milwaukee's highest-performing M18 battery platform
  • Provides up to 50% more power than the M18 HIGH OUTPUT 12.0Ah battery
  • 12.0Ah capacity supports extended runtime in demanding cordless applications
  • COOL-CYCLE active cooling accelerates charging and reduces downtime
  • Super charging capability reaches 80% in 35 minutes and full charge in 45 minutes
  • REDLINK intelligence optimises battery performance and protection
  • Durable housing resists oils, solvents and harsh jobsite conditions
  • Compatible with all Milwaukee M18 cordless power tools
Read Product Description

You might also like

Product Description

Milwaukee M18 FB12 FORGE 12.0Ah Battery

The Milwaukee M18 FB12 FORGE 12.0Ah Battery is a high-capacity 18V REDLITHIUM™ FORGE™ pack designed to power M18™ cordless tools through the toughest professional applications. Built around stacked power cells and improved pack construction, it delivers up to 50% more power than the M18™ HIGH OUTPUT™ 12.0 Ah battery while maintaining a compact footprint for better handling on heavy tools. The COOL-CYCLE™ active cooling system works with compatible super chargers to cool the pack during charging, achieving up to 80% charge in 35 minutes and a full charge in around 45 minutes to minimise downtime on site. A robust, oil-, solvent- and grease-resistant housing offers excellent protection against harsh jobsite and weather conditions, while REDLINK™ intelligence manages performance and overload protection across the tool, battery and charger. With an enhanced, sunlight-readable fuel gauge and full compatibility with all Milwaukee M18™ tools, this 12.0Ah battery is a powerful energy source for saws, grinders, outdoor equipment and other high-demand trade tools.

4932492651 Features:

  • Delivers up to 50% more power than the M18™ HIGH OUTPUT™ 12.0 Ah battery, helping trades maximise performance on demanding tools.
  • REDLITHIUM™ FORGE™ battery technology provides Milwaukee’s most powerful, fastest charging and longest life packs for consistent jobsite productivity.
  • 12.0 Ah high-capacity pack offers extended runtime, ideal for high-drain applications such as saws, grinders and outdoor equipment.
  • COOL-CYCLE™ active cooling system rapidly cools the pack during charging to reduce downtime between tasks.
  • Super charge capability delivers up to 80% charge in 35 minutes and a full charge in 45 minutes when used with the M18™ dual bay super charger.
  • Durable, oil-, solvent- and grease-resistant housing is engineered to withstand tough jobsite, weather and environmental conditions.
  • Enhanced onboard fuel gauge improves visibility in direct sunlight, allowing users to plan battery changes more accurately.
  • Integrated REDLINK™ intelligence optimises performance and provides overload protection through communication between tool, battery and charger.
  • Fully compatible with all Milwaukee M18™ cordless tools, allowing the battery to be shared across an entire 18V system.
  • Stacked power cell design and improved pack construction increase efficiency and pack life compared with previous cylindrical-cell designs.

Warranty Information

2 Year Standard Warranty (Extendable to 3 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:REDLITHIUM FORGE battery technology delivers Milwaukee's highest-performing M18 battery platform
top_feature:Provides up to 50% more power than the M18 HIGH OUTPUT 12.0Ah battery
top_feature:12.0Ah capacity supports extended runtime in demanding cordless applications
top_feature:COOL-CYCLE active cooling accelerates charging and reduces downtime
top_feature:Super charging capability reaches 80% in 35 minutes and full charge in 45 minutes
top_feature:REDLINK intelligence optimises battery performance and protection
top_feature:Durable housing resists oils, solvents and harsh jobsite conditions
top_feature:Compatible with all Milwaukee M18 cordless power tools
FQQ:Is the Milwaukee M18 FB12 FORGE 12.0Ah Battery compatible with all M18 tools?
FAA:Yes, it is compatible with every tool in the M18 system.
FQQ:How much more power does the Milwaukee M18 FB12 FORGE 12.0Ah Battery deliver compared to the M18 HIGH OUTPUT 12.0Ah battery?
FAA:It delivers up to 50% more power than the M18 HIGH OUTPUT 12.0Ah battery.
FQQ:How quickly does the Milwaukee M18 FB12 FORGE 12.0Ah Battery charge on the M18 Dual Bay Super Charger?
FAA:It reaches 80% in about 35 minutes and fully charges in around 45 minutes on the M18 Dual Bay Super Charger.
FQQ:What are the charge times for the Milwaukee M18 FB12 FORGE 12.0Ah Battery on other common Milwaukee chargers?
FAA:Approximate full-charge times are 60 minutes on the M18 Super Charger, 130 minutes on the M12-18 FC and M18 DFC, 250 minutes on the M12-18 C, 270 minutes on the M1418C6, 285 minutes on the M12-18 AC, and 130 minutes on the M18 PC6/MPC6 AC chargers.
FQQ:What are the capacity and voltage of the Milwaukee M18 FB12 FORGE 12.0Ah Battery?
FAA:The pack is 12.0Ah and 18V Li-ion.
FQQ:Does the Milwaukee M18 FB12 FORGE 12.0Ah Battery feature active cooling?
FAA:Yes, it is COOL-CYCLE capable, providing high-speed active cooling to reduce downtime.
FQQ:What protection features are built into the Milwaukee M18 FB12 FORGE 12.0Ah Battery?
FAA:REDLINK intelligence optimises performance and provides overload protection through communication between tool, battery and charger.
FQQ:Is the Milwaukee M18 FB12 FORGE 12.0Ah Battery suitable for demanding applications?
FAA:Yes, it is designed to provide increased run time in high-demand applications.
FQQ:Is the housing of the Milwaukee M18 FB12 FORGE 12.0Ah Battery resistant to workshop fluids?
FAA:Yes, the resistant housing is designed to offer increased protection against oils, solvents and greases.
FQQ:Is the fuel gauge on the Milwaukee M18 FB12 FORGE 12.0Ah Battery easy to read outdoors?
FAA:Yes, the enhanced onboard fuel gauge is designed for improved readability in direct sunlight.
Included:1x Milwaukee M18 FB12 FORGE 12.0Ah 18V REDLITHIUM Battery
Brand:Milwaukee
Model:M18 FB12
System:M18
Battery technology:REDLITHIUM FORGE
Battery type:Li-ion
Voltage:18 V
Battery pack capacity:12.0 Ah
Number of batteries supplied:1
Product code:4932492651
GTIN:4058546414016
Charge time with M18 DBSC/MDBSC AC charger:45 minutes
Charge time with M12_18 FC charger:130 minutes
Charge time with M12_18 SC charger:60 minutes
Charge time with M12_18 AC charger:285 minutes
Charge time with M12_18 C charger:250 minutes
Charge time with M1418C6 charger:270 minutes
Charge time with M18 DFC charger:130 minutes
Charge time with M18 PC6/MPC6 AC charger:130 minutes
Weight:1.49-
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: Is the Milwaukee M18 FB12 FORGE 12.0Ah Battery compatible with all M18 tools?

A:

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

Q: How much more power does the Milwaukee M18 FB12 FORGE 12.0Ah Battery deliver compared to the M18 HIGH OUTPUT 12.0Ah battery?

A:

It delivers up to 50% more power than the M18 HIGH OUTPUT 12.0Ah battery.

Q: How quickly does the Milwaukee M18 FB12 FORGE 12.0Ah Battery charge on the M18 Dual Bay Super Charger?

A:

It reaches 80% in about 35 minutes and fully charges in around 45 minutes on the M18 Dual Bay Super Charger.

Q: What are the charge times for the Milwaukee M18 FB12 FORGE 12.0Ah Battery on other common Milwaukee chargers?

A:

Approximate full-charge times are 60 minutes on the M18 Super Charger, 130 minutes on the M12-18 FC and M18 DFC, 250 minutes on the M12-18 C, 270 minutes on the M1418C6, 285 minutes on the M12-18 AC, and 130 minutes on the M18 PC6/MPC6 AC chargers.

Q: What are the capacity and voltage of the Milwaukee M18 FB12 FORGE 12.0Ah Battery?

A:

The pack is 12.0Ah and 18V Li-ion.

Q: Does the Milwaukee M18 FB12 FORGE 12.0Ah Battery feature active cooling?

A:

Yes, it is COOL-CYCLE capable, providing high-speed active cooling to reduce downtime.

Q: What protection features are built into the Milwaukee M18 FB12 FORGE 12.0Ah Battery?

A:

REDLINK intelligence optimises performance and provides overload protection through communication between tool, battery and charger.

Q: Is the Milwaukee M18 FB12 FORGE 12.0Ah Battery suitable for demanding applications?

A:

Yes, it is designed to provide increased run time in high-demand applications.

Q: Is the housing of the Milwaukee M18 FB12 FORGE 12.0Ah Battery resistant to workshop fluids?

A:

Yes, the resistant housing is designed to offer increased protection against oils, solvents and greases.

Q: Is the fuel gauge on the Milwaukee M18 FB12 FORGE 12.0Ah Battery easy to read outdoors?

A:

Yes, the enhanced onboard fuel gauge is designed for improved readability in direct sunlight.

Milwaukee M18 FB12 FORGE 12.0Ah Battery

The Milwaukee M18 FB12 FORGE 12.0Ah Battery is a high-capacity 18V REDLITHIUM™ FORGE™ pack designed to power M18™ cordless tools through the toughest professional applications. Built around stacked power cells and improved pack construction, it delivers up to 50% more power than the M18™ HIGH OUTPUT™ 12.0 Ah battery while maintaining a compact footprint for better handling on heavy tools. The COOL-CYCLE™ active cooling system works with compatible super chargers to cool the pack during charging, achieving up to 80% charge in 35 minutes and a full charge in around 45 minutes to minimise downtime on site. A robust, oil-, solvent- and grease-resistant housing offers excellent protection against harsh jobsite and weather conditions, while REDLINK™ intelligence manages performance and overload protection across the tool, battery and charger. With an enhanced, sunlight-readable fuel gauge and full compatibility with all Milwaukee M18™ tools, this 12.0Ah battery is a powerful energy source for saws, grinders, outdoor equipment and other high-demand trade tools.

4932492651 Features:

  • Delivers up to 50% more power than the M18™ HIGH OUTPUT™ 12.0 Ah battery, helping trades maximise performance on demanding tools.
  • REDLITHIUM™ FORGE™ battery technology provides Milwaukee’s most powerful, fastest charging and longest life packs for consistent jobsite productivity.
  • 12.0 Ah high-capacity pack offers extended runtime, ideal for high-drain applications such as saws, grinders and outdoor equipment.
  • COOL-CYCLE™ active cooling system rapidly cools the pack during charging to reduce downtime between tasks.
  • Super charge capability delivers up to 80% charge in 35 minutes and a full charge in 45 minutes when used with the M18™ dual bay super charger.
  • Durable, oil-, solvent- and grease-resistant housing is engineered to withstand tough jobsite, weather and environmental conditions.
  • Enhanced onboard fuel gauge improves visibility in direct sunlight, allowing users to plan battery changes more accurately.
  • Integrated REDLINK™ intelligence optimises performance and provides overload protection through communication between tool, battery and charger.
  • Fully compatible with all Milwaukee M18™ cordless tools, allowing the battery to be shared across an entire 18V system.
  • Stacked power cell design and improved pack construction increase efficiency and pack life compared with previous cylindrical-cell designs.

Warranty Information

2 Year Standard Warranty (Extendable to 3 Years With Registration)
  • 1x Milwaukee M18 FB12 FORGE 12.0Ah 18V REDLITHIUM 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:REDLITHIUM FORGE battery technology delivers Milwaukee's highest-performing M18 battery platform
top_feature:Provides up to 50% more power than the M18 HIGH OUTPUT 12.0Ah battery
top_feature:12.0Ah capacity supports extended runtime in demanding cordless applications
top_feature:COOL-CYCLE active cooling accelerates charging and reduces downtime
top_feature:Super charging capability reaches 80% in 35 minutes and full charge in 45 minutes
top_feature:REDLINK intelligence optimises battery performance and protection
top_feature:Durable housing resists oils, solvents and harsh jobsite conditions
top_feature:Compatible with all Milwaukee M18 cordless power tools
FQQ:Is the Milwaukee M18 FB12 FORGE 12.0Ah Battery compatible with all M18 tools?
FAA:Yes, it is compatible with every tool in the M18 system.
FQQ:How much more power does the Milwaukee M18 FB12 FORGE 12.0Ah Battery deliver compared to the M18 HIGH OUTPUT 12.0Ah battery?
FAA:It delivers up to 50% more power than the M18 HIGH OUTPUT 12.0Ah battery.
FQQ:How quickly does the Milwaukee M18 FB12 FORGE 12.0Ah Battery charge on the M18 Dual Bay Super Charger?
FAA:It reaches 80% in about 35 minutes and fully charges in around 45 minutes on the M18 Dual Bay Super Charger.
FQQ:What are the charge times for the Milwaukee M18 FB12 FORGE 12.0Ah Battery on other common Milwaukee chargers?
FAA:Approximate full-charge times are 60 minutes on the M18 Super Charger, 130 minutes on the M12-18 FC and M18 DFC, 250 minutes on the M12-18 C, 270 minutes on the M1418C6, 285 minutes on the M12-18 AC, and 130 minutes on the M18 PC6/MPC6 AC chargers.
FQQ:What are the capacity and voltage of the Milwaukee M18 FB12 FORGE 12.0Ah Battery?
FAA:The pack is 12.0Ah and 18V Li-ion.
FQQ:Does the Milwaukee M18 FB12 FORGE 12.0Ah Battery feature active cooling?
FAA:Yes, it is COOL-CYCLE capable, providing high-speed active cooling to reduce downtime.
FQQ:What protection features are built into the Milwaukee M18 FB12 FORGE 12.0Ah Battery?
FAA:REDLINK intelligence optimises performance and provides overload protection through communication between tool, battery and charger.
FQQ:Is the Milwaukee M18 FB12 FORGE 12.0Ah Battery suitable for demanding applications?
FAA:Yes, it is designed to provide increased run time in high-demand applications.
FQQ:Is the housing of the Milwaukee M18 FB12 FORGE 12.0Ah Battery resistant to workshop fluids?
FAA:Yes, the resistant housing is designed to offer increased protection against oils, solvents and greases.
FQQ:Is the fuel gauge on the Milwaukee M18 FB12 FORGE 12.0Ah Battery easy to read outdoors?
FAA:Yes, the enhanced onboard fuel gauge is designed for improved readability in direct sunlight.
Included:1x Milwaukee M18 FB12 FORGE 12.0Ah 18V REDLITHIUM Battery
Brand:Milwaukee
Model:M18 FB12
System:M18
Battery technology:REDLITHIUM FORGE
Battery type:Li-ion
Voltage:18 V
Battery pack capacity:12.0 Ah
Number of batteries supplied:1
Product code:4932492651
GTIN:4058546414016
Charge time with M18 DBSC/MDBSC AC charger:45 minutes
Charge time with M12_18 FC charger:130 minutes
Charge time with M12_18 SC charger:60 minutes
Charge time with M12_18 AC charger:285 minutes
Charge time with M12_18 C charger:250 minutes
Charge time with M1418C6 charger:270 minutes
Charge time with M18 DFC charger:130 minutes
Charge time with M18 PC6/MPC6 AC charger:130 minutes
Weight:1.49-
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: Is the Milwaukee M18 FB12 FORGE 12.0Ah Battery compatible with all M18 tools?

A:

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

Q: How much more power does the Milwaukee M18 FB12 FORGE 12.0Ah Battery deliver compared to the M18 HIGH OUTPUT 12.0Ah battery?

A:

It delivers up to 50% more power than the M18 HIGH OUTPUT 12.0Ah battery.

Q: How quickly does the Milwaukee M18 FB12 FORGE 12.0Ah Battery charge on the M18 Dual Bay Super Charger?

A:

It reaches 80% in about 35 minutes and fully charges in around 45 minutes on the M18 Dual Bay Super Charger.

Q: What are the charge times for the Milwaukee M18 FB12 FORGE 12.0Ah Battery on other common Milwaukee chargers?

A:

Approximate full-charge times are 60 minutes on the M18 Super Charger, 130 minutes on the M12-18 FC and M18 DFC, 250 minutes on the M12-18 C, 270 minutes on the M1418C6, 285 minutes on the M12-18 AC, and 130 minutes on the M18 PC6/MPC6 AC chargers.

Q: What are the capacity and voltage of the Milwaukee M18 FB12 FORGE 12.0Ah Battery?

A:

The pack is 12.0Ah and 18V Li-ion.

Q: Does the Milwaukee M18 FB12 FORGE 12.0Ah Battery feature active cooling?

A:

Yes, it is COOL-CYCLE capable, providing high-speed active cooling to reduce downtime.

Q: What protection features are built into the Milwaukee M18 FB12 FORGE 12.0Ah Battery?

A:

REDLINK intelligence optimises performance and provides overload protection through communication between tool, battery and charger.

Q: Is the Milwaukee M18 FB12 FORGE 12.0Ah Battery suitable for demanding applications?

A:

Yes, it is designed to provide increased run time in high-demand applications.

Q: Is the housing of the Milwaukee M18 FB12 FORGE 12.0Ah Battery resistant to workshop fluids?

A:

Yes, the resistant housing is designed to offer increased protection against oils, solvents and greases.

Q: Is the fuel gauge on the Milwaukee M18 FB12 FORGE 12.0Ah Battery easy to read outdoors?

A:

Yes, the enhanced onboard fuel gauge is designed for improved readability in direct sunlight.

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.

Adding to basket… The item has been added
Milwaukee M18™ FB12 FORGE™ 12.0Ah Battery

Milwaukee M18 FB12 FORGE 12.0Ah Battery

4932492651

£234.27
£215.53
inc VAT
£179.61
  ex.VAT
(You save £18.74 )
Adding to basket… The item has been added
Buy Now