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Model#: MILX48-11-1815
Open Box

What are the different product conditions?

Brand new items;Full manufacturer warranty available
Manufacturer inspected, repaired and tested items; CPO 60 day money back guarantee
Open Box
New or Recon items with possible minor cosmetic damage; CPO 60 day money back guarantee
Returned items inspected, repaired and tested by CPO technicians; CPO 60 day money back guarantee

Milwaukee 48-11-1815 M18 18V 1.5 Ah Compact REDLITHIUM Lithium-Ion Battery (Open Box)

  • Milwaukee 48-11-1815 M18 18V 1.5 Ah Compact REDLITHIUM Lithium-Ion Battery (Open Box)
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  • Due to federal regulations, this product can only be shipped within the continental US. Express delivery not available.


OPEN BOX: Open box units are new or reconditioned items that may have been shipped from the manufacturer with minor packaging damage, minor tool damage, or as an incomplete unit to the CPO warehouse and may not include accessories or original manufacturer packaging. Each open box unit is inspected by CPO to be fully functional and in working order, and is repackaged to ensure safe delivery to the customer. Open Box units are covered by a full 60 day warranty covering parts and labor.
Delivers more runtime, power and speed than standard Lithium-Ion batteries.
Milwaukee's M18 REDLITHIUM batteries are designed with superior pack construction, electronics and performance to optimize work per charge and work over pack life. Managed by the exclusive REDLINK Intelligence technology, each REDLITHIUM battery features overload protection, discharge protection and temperature management for maximum battery life.
  • REDLINK Intelligence provides optimized performance and overload protection using total system communication between tool, battery and charger
  • Best-in-class construction offers long-lasting performance, durability and longevity
  • Onboard fuel gauge displays remaining runtime for increased productivity and less downtime on the job
  • All-weather performance delivers fade-free power in extreme jobsite conditions
  • Compatible with more than 40 of Milwaukee's cordless power tools
  • M18 18V 1.5 Ah Compact REDLITHIUM Lithium-Ion Battery - 48-11-1815


Series: M18
Battery Amp Hours: 1.5 Ah
Battery Style: Slide
Battery Type: Li-Ion
Compatible Chargers: 48-59-1850
Compatible Models: All Milwaukee M18 Slide Battery Compatible Cordless Tools
Voltage: 18V



4.7 / 5.0
3 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Would you recommend?
Yes (3)
Yes, I would recommend this to a friend
Great product!
This battery is light but lacks the power of the ful size batteries.
March 26, 2016
Yes, I would recommend this to a friend
Great product as usual
Milwaukee stuff is always greatt!!!!
March 24, 2016
Yes, I would recommend this to a friend
gives all the power needed
good battery
January 9, 2016

Questions & Answers

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Browse 2 questions Browse 2 questions and 2 answers
Will the 1811 work to replace an 1815 ?
Rich on Dec 11, 2015
BEST ANSWER: Yes, the 48-11-1811 is compatible with model 48-11-1815
Will this work with my older Milwaukee tool set? Cat. no. 6310-20 ser.# 057A505041935 (circ. saw)
If not, where could I get a charger and battery for that set?
None on Oct 1, 2015
BEST ANSWER: This item is compatible with all M18 18V tools by Milwaukee.