Milwaukee 48-11-1865 M18 REDLITHIUM HIGH Output XC 6 Ah Lithium-Ion Battery
Condition: New
$127.00
Holiday Deal
· 36% off
was $199.00
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As low as
$21.17
/ mo
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- – 6-month term
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Extended holiday returns
FREE refund/replacement until Jan 31, 2027 Learn more
FREE refund/replacement until Jan 31, 2027 Learn more
This item's return window has been extended for the holiday season: FREE refund/replacement until Jan 31, 2027
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
Only 9 left in stock, order soon!
Arrives
Saturday, Nov 21
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At a glance
- Condition
- New
- Total product quantity
- 1 Count
- Model
- MIL-48-11-1865
- Dimensions
- 5.5 x 3.75 x 3.5 in
- Weight
- 1.5 lb
- Battery Capacity
- 6 Ah
- Battery Cell Type
- Lithium Ion
- Warranty
- 3 year
Features 3
- 50% more runtime, most work/charge of any power tool battery
- 50% more power to replace 15Amp corded tools & runs 50% cooler
- Fully compatible with the M18 System, featuring over 150+ tools
Specs 18
| Number of Batteries | 1 Lithium Ion batteries required. (included) |
|---|---|
| Brand | Milwaukee |
| Battery Cell Composition | Lithium Ion |
| Battery Capacity | 6 Ah |
| Recommended Uses For Product | Tools |
| Model Number | MIL-48-11-1865 |
| Model Name | m18 |
| UPC | 653785783585 |
| Manufacturer | Milwaukee |
| Battery Cell Type | Lithium Ion |
| Voltage | 18 |
| Reusability | Yes |
| Amperage | 15 A |
| Unit Count | 1 Count |
| Battery Weight | 2.3 pounds |
| Item Dimensions | 5.5 x 3.75 x 3.5 inches |
| Item Weight | 1.5 pounds |
| Antenna Location | Tools |
No specs match.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Saturday, Nov 21
Yes, absolutely! This item's return window has been extended for the holiday season: FREE refund/replacement until Jan 31, 2027.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Milwaukee M-18 battery
Good product very useful long lasting product fast charging
Reviewed in the United States on September 14, 2026 by Shirley Bigler
Actual Milwaukee batteries
I thought this was a scam because of the price, but I check the reviews and I took a chance. It paid off because its actual the Milwaukee brand batteries and they work great. Hold a good charge and perform well. Definitely worth the money.
Reviewed in the United States on July 13, 2026 by Oz
Great battery
Oem battery holds the charge and last while in use
Reviewed in the United States on August 12, 2026 by RmL
Quality and price
Used it once, good price, good battery so far.
Reviewed in the United States on July 30, 2026 by frank g
So far so good
Plenty of power. We’ll see how long they last
Reviewed in the United States on August 2, 2026 by MICHAEL A. BOROWSKI
Perhaps a reason this battery is discounted…
Be mindful these discounted batteries may likely all be new, but are most likely out of warranty based on manufacture date on the serial number of battery. Purchased this battery new. Packaging looked a little weathered but otherwise looked new and believe battery is “new.” However the battery is new and four years old but charged fine. I’m guessing these batteries are leftover unsold batteries sold at a discount due to being out of warranty or close to it. So what you are buying could be a one shot deal with no warranty. The batteries may work just fine but know if you have a warranty issue, it won’t be backed up from most online Amazon sellers. A recognized Milwaukee vendor (ie Home Depot) usually recognize date of sale as start of warranty. Worth a gamble though as these 6.0 amh batteries are usually among the better high output batteries for reliability.
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Reviewed in the United States on February 29, 2024 by John
Milwaukee 2 lg batteries for a special racing transmission fluid exchange cooler 🙌🏼💙
2 - Milwaukee 48 –11 –1865 – M 18 lithium battery replacement, we purchased 2 extra batteries and it is the larger ones Milwaukee is a great brand, these were needed for a special racing device, that rinses & cools down, transmission fluid, it just continues to run through the cooling machine and back into the race car, so there’s no exchange of fluids. There’s no pulling out all fluids and then pouring back in. It’s just constantly on a recycling setting, that cools the transmission fluid even by a few degrees can get you a win 🏆 If you don’t know anything about drag-racing, it’s hard to understand, however, even just 5° could bring you a win - after competition starts going down in drag racing there are 2 racers/lanes & 1 winner 🥇 each round, if you have 32 cars, you can count how much it cuts the class by 50% each round, therefore your rounds start to go faster & faster having a device that can cool your transmission fluid down when you start to become the runner-up and/or in the final race - running this machine could help in a major way! And, this equipment was built specifically for my husbands race team, and required 2 Milwaukee 48 –11 – 1865 lithium, high output, batteries so far so good, they’ve been working great, and my husband takes every caution at recharging any batteries as he’s taught me, don’t do it when they’re hot, wait till they cool down….which works out perfectly when we go out for a round we are gone for at least 45-1 hr & when we come back to recharged Milwaukee batteries, they’re cool, they are charged, & ready to run the transmission fluid exchange/cooler. Battery life is good, and the battery capacity is large so it’s great 👍🏼 so far we just purchased these a couple weeks ago, if anything changes, I’ll come back and re-review if necessary Condition was great, compatibility was perfect, authenticity perfect, they were a little bit expensive. I would’ve loved to see them on sale at some point, but it seems like any chargers we need like DeWalt, Milwaukee, those are the main 2 they never go on sale and they’re always quite expensive, so I would love you to work on the value for the money on both DeWalt & Milwaukee
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Reviewed in the United States on June 18, 2026 by BNStyle
OEM Milwaukee M-18 8.0 A
I was hesitant to order this battery since there are thousands of counterfeits on Amazon. However, this one came in in the original Milwaukee package, charged right up, and back to work. Well recommended!
Reviewed in the United States on July 18, 2026 by Firebird Colorado