Milwaukee 48-11-1890 M18 REDLITHIUM HIGH DEMAND HD 9 Ah Lithium-Ion Battery

Model: miln48-11-1890
        (24) Write A Review
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Milwaukee 48-11-1890 M18 REDLITHIUM HIGH DEMAND HD 9 Ah Lithium-Ion Battery Model: miln48-11-1890
See Price in Cart tool tip icon

Why is the price hidden?

We want to pass on our savings to our customers, so we've lowered the price of this item. However, since our price is now below the manufacturer's suggested retail price, we are restricted by the manufacturer from showing the price right away.

OR PAY WITH

Product Features & specs :

Milwaukee 48-11-1890 M18 REDLITHIUM HIGH DEMAND HD 9 Ah Lithium-Ion Battery

Details
The M18 REDLITHIUM HIGH DEMAND HD9.0 Battery Pack delivers up to 5X more run-time, 35% more power, and runs 60% cooler than standard 18V Li-Ion batteries. The battery is best optimized for high draw products and sustained run-time applications, and it provides the next, large step towards full corded replacement when paired with the M18 system of solutions. It maintains full power and runs substantially cooler through heavy applications, allowing users to push their cordless tools harder and longer than ever before. The M18 REDLITHIUM HIGH DEMAND 9.0 Battery Pack is fully compatible with 100+ M18 tools.
Features:
  • Provides optimized performance and overload protection using total system communication between tool, battery and charger
  • Offers long-lasting performance and durability
  • Fuel gauge onboard: Displays remaining runtime for less downtime on the job
  • Delivers fade free power in extreme jobsite conditions
  • Powers more than 100 Milwaukee M18 cordless power tools
What’s Included:
  • (1) M18 REDLITHIUM HIGH DEMAND HD 9 Ah Lithium-Ion Battery - 48-11-1890
  • Sticker label may vary
Series
FUEL
Length
5.1 in.
Width
3.1 in.
Height
3.4 in.
Weight
2.4 lbs.
Battery Amp Hour
9 Ah
Battery Style
Slide
Battery System
M18
Battery Type
Li-Ion
Compatible Models
All M18 Tools
Recharge Time
1 Hour 30 Minutes
Voltage
18V

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Milwaukee 48-11-1890 M18 REDLITHIUM HIGH DEMAND HD 9 Ah Lithium-Ion Battery
Model: MILN48-11-1890
                         (24)
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Why is the price hidden? We want to pass on our savings to our customers, so we've lowered the price of this item. However, since our price is now below the manufacturer's suggested retail price, we are restricted by the manufacturer from showing the price right away.
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Milwaukee 48-59-1807 M18 and M12 Rapid Charge Station
Model: MILN48-59-1807
                         (16)
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Milwaukee 48-59-1806 M18 18V Six Pack Sequential Charger
Model: MILN48-59-1806
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Milwaukee 48-59-1810 M18/M12 Vehicle Charger
Model: MILN48-59-1810
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Milwaukee 48-59-1808 M12/M18 Lithium-Ion Rapid Battery Charger
Model: MILN48-59-1808
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Milwaukee 2792-20 M18 18V Jobsite Radio and Charger
Model: MILN2792-20
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Reviews :

3.0 / 5.0
27 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
11
2
1
1
12
Would you recommend this product?
Yes (7)
Pros
Powerful (6)
Battery Longevity (if applicable) (6)
Easy To Use (5)
Value (5)
Cons
Heavy (2)
Best Uses
Heavy Duty Requirements (6)
Large Projects (6)
Frequent Use (5)
Jobsite (4)
Would not purchase again
I purchased this battery 6 months ago, Now it wont charge, Shows 3 bars on the fuel gauge But will not charge beyond 3 bars.
November 23, 2019
Originally posted at
Would not buy another one.
Does not charge. Last month the battery indicator shows 3/4 bars full. 6 different chargers all show that it is at full capacity, solid green light, when plugged in. Now it is down to 2 bars, plug it in any of my chargers and all my chargers show full, solid green light. No issues with my other batteries.
November 23, 2019
Originally posted at
Great at first then not so much
I tried posting a review about this but it mysteriously disappeared. I am having the same issues as others with significantly lowering run times over the last year along with the battery topping out at three bars on a full charge.
November 22, 2019
Originally posted at
Charger goes to green as soon I plug battery in
My boss/friend bought me the m18 9.0ah battery for my birthday, I was well chuffed with it. Only problem is that it took 2 charges to fully charge it. Now when I put it in the green light comes on straight away to indicate fully charged, and will not accept a charge at all now.
October 31, 2019
Originally posted at
9.0
Bought this with a trimmer/blower combo a year or so ago. Will only run about 15 minutes and when I put it on the charger it lights up green.
September 23, 2019
Originally posted at
Terrible lifespan
At first was a great performing battery. Now lasts only a few minutes. As soon as battery is just under the 4 bars from fully charged, my trimmer shuts off. Put in on charger and it charges from 3 bars. 5.0 batteries put this expensive junk one to shame.
September 3, 2019
Originally posted at
Was working great, but . . .
I bought the trimmer kit that included the battery and rapid charger. It was working great for the first year but just recently would only charge to 3 out of 4 bars on the battery indicator, and the charger shows full green lights. I used to be able to trim my entire yard and use the same battery on the leaf blower with one charge. Now it’s dead after about 15 minutes. It’s a good thing I can swap out with my 4.0 battery packs. I would rate it 5 stars if this battery didn’t start to fail after just a year. All my other Milwaukee products live up to their expectations.
September 1, 2019
Originally posted at
Will not charge fully
This battery worked fine initially, and then suddenly refused to fully charge. The charger light goes green with only two bars of charge level. I have tried several different charges with no change.
August 31, 2019
Originally posted at
Won't last more than 8 minutes Trimming/Blowing
It only lasted for about four full grass mantance ,after the 4th week practically have to charge it 2 times some times 3 just to weed my house, its ridiculous , its a very expensive battery to get only 8 minutes of running time
August 26, 2019
Originally posted at
I’ve had 3 9.0 batteries. None of them will charge
Weadeater, hedge clippers and blower
Used batteries 1-3 times and won’t take a charge.
August 16, 2019
Originally posted at

Q & A :

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Browse 6 questions Browse 6 questions and 8 answers
Can I use a regular 18 volt charger with this battery?
A shopper on Sep 30, 2016
BEST ANSWER: As per Milwaukee's youtube video, you can use your regular M18 charger to charge the new 6 Ah and 9Ah batteries. It will take a while due to the larger capacity. Milwaukee's new rapid charger is 40% faster, which may be handy for these larger batteries. It is also backward compatible with other existing M18 batteries. I've only seen the dual 18V/12V model, but read that single bay models are coming out if you don't use both 12v and 18v tools.
What is the weight of this battery?
A shopper on Oct 12, 2016
BEST ANSWER: The weight of the Milwaukee 48-11-1890 is 2.4lbs.
will the m18 high demand 9.0 work with heated coats ?
Gary E on Nov 9, 2016
BEST ANSWER: You can buy an M18 Power Port (49-24-2371) which WILL allow you to use the 9 Ah batteries with the heated gear.
I would like to rebuild my power plus 18v as lithium ion. What are my best performance/cost options for replacement battery cells?
A shopper on Oct 4, 2018
BEST ANSWER: Your question will be best answered by the manufacturer, who can provide you with the accurate information. The number to reach the technician directly is 1-800-729-3878 or online at www.milwaukeetools.com.
How long will the 9.0 run a Milwaukee fan?
A shopper on Jun 23, 2018
BEST ANSWER: I accidentally left mine on low and 18 hrs later it was still going.
Hi, how many mah's is this battery?.
Don G. Dardanelli on Mar 14, 2018
BEST ANSWER: 9 mah is Milwaukee’s rating on this battery. I have 2 of them and use them on my big blower and 7” skill saw. They outperform the 5 mah by about double. The 9 is a long run time battery that you will like.