Milwaukee M18 Battery 5.5Ah High Output

By Milwaukee Product code: 20939 Pack size: Each

£94.07 Exc. VAT £78.39

Product Details

Want to push your Milwaukee cordless tools harder and longer than ever before? This M18 REDLITHIUM™ 5.5Ah high output battery provides up to 50% more power than standard M18 alternatives – this means even greater performance and run times.

Milwaukee’s patented REDLINK™ intelligence protects the pack from tough jobsite conditions to ensure the very best performance. The pack runs up to 50% cooler than other M18 REDLITHIUM™ batteries, allowing you to push it to its limit for even more impressive results.

• Up to 50% more power than standard Milwaukee M18™ batteries

• More run time than ever before

• Individual cell monitoring ensures optimal charge and discharge

• Durable internal metal frame and rubber overmold

• Robust design prevents pack failure from excessive vibrations or drops

• Runs up to 50% cooler than other M18™ REDLITHIUM™ battery packs

• On-board battery fuel gauge for maximum efficiency

• Compatible with all Milwaukee M18™ cordless power tools

Other Milwaukee M18™ Batteries & Chargers

• Milwaukee M18 REDLITHIUM™ 4.0Ah 69623

• Milwaukee M18 REDLITHIUM™ 5.0Ah 31200

• Milwaukee M12-M18™ Fast Charger 18266

• Milwaukee M18™ Multi Bay Charger 79644

Technical Specification
Brand Milwaukee
Manufacturer ID 4932464712
Voltage 18
Battery Type Li-Ion
Safety Data Sheet click here
Type Battery
Amp Rating 5.5
Power Source / Cordless Cordless
Batteries Included 1 x 5.5Ah
Corded or Cordless Cordless
Delivery details

DELIVERY OPTIONS (UK mainland only)

Next Day Delivery – £5.00 or FREE for orders over £25

  • Order before 9pm Monday to Thursday for next business day delivery
  • Order Friday to Sunday before 5pm for Monday delivery
  • Orders placed after Sunday at 5pm will be delivered the following Tuesday
Pre-12pm Delivery – £10.00 to arrive before 12pm on the scheduled days above
Saturday Delivery – £10.00 or £5.00 for orders over £25 & FREE for orders over £75 (order by 6pm Friday)
Sunday delivery – £10.00 or £5.00 for orders over £25 & FREE for orders over £75 (order by 4pm Saturday)
Times may vary for items being delivered directly from the supplier. For more information, please visit our delivery information page below.
Items over 30kg can only be delivered from Monday to Friday. If ordered before 6pm, please allow up to two business days for delivery. Orders placed after 6pm Thursday will be delivered after the weekend.
More about Delivery
Click & Collect details

Collection Details

Our opening times are 7am-8pm Monday-Friday, 7am-6pm Saturday and 9-4pm Sunday. Please check your local store is open on the store locator page, before you visit.

Once you have placed your order online, we’ll have it ready for you at the store you have selected in as little as 5 minutes. We will hold your order for 14 days, after which we will automatically generate a refund to the payment type you used to place the order.

Don’t forget your mobile number – Make sure your mobile number is added so that we can text you when your order is ready to collect. Please wait for your text or email before coming to collect your items.

If an item is eligible for Next Business Day Collection in store, the order must be placed by 9pm Monday to Thursday for collection the next day. Orders placed after 9pm on Thursday, and up to 5pm on Sunday, will be available for collection on Monday. For larger items over 30kg, please allow two business days.

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