• 35% more power vs M12B2
• Runs cooler
• HIGH OUTPUT™ technology
• Increases runtime
• Flexible battery system: works with all Milwaukee M12 Power Tools



The M12™ High Output™ M12HB2.5 2.5Ah Battery Provides 35% more power as the current M12 B2. Runs 50% cooler as the current M12 Batteries. HIGH OUTPUT™ and advanced REDLINK™ electronics provide ground breaking power output, pushing tools harder through tough applications. Temperature control cell frame minimizes heat generation, so users can run harder and longer. Increased runtime on high demand applications. New charging technology to deliver fastest M12 charge rates when paired with upcoming future charger. Elevates performance of entire M12 system. Forward and backward compatible with 100+ solutions. Resistance against oils, solvents, & greases commonly found in automotive & manufacturing environments. Enhanced durability to support HIGH OUTPUT performance.

Delivery (UK mainland only)

 

Next Day: £5, or FREE over £40

- Order by 9pm Mon-Thu: next working day

- Order Fri to 5pm Sun: Monday

- Order after 5pm Sun: Tuesday

 

Pre-12pm: £10

- Same cut-offs as Next Day above

 

Saturday & Sunday: £10, or £5 over £40, or FREE over £75

- Saturday: order by 6pm Fri

- Sunday: order by 4pm Sat

 

Heavy items (over 30kg)

- Mon-Fri only. Order by 6pm and allow up to two working days

- Order after 6pm Thu: arrives after the weekend

 

Supplier items

- Sent directly by the supplier, so timings vary. Lead times appear on the product page in working days (Mon-Fri)

 

More about delivery 

Next Business Day Collection (eligible items)

- Order by 9pm Mon-Thu: collect next day

- Order after 9pm Thu to 5pm Sun: collect Monday

- Heavy items (over 30kg): allow up to two working days

 

Opening hours

- Weekdays vary by branch: open 6:30am-7am, close 6pm-8pm

- Saturday: 7am-6pm

- Sunday: 9am-4pm

 

Check your local store's hours and that it's open before visiting. Please wait for our text or email before collecting.

 

Holding your order
We'll hold it for 14 days, then automatically refund your original payment method.