Buy Now, Pay Later
As low as
$25.00
/ mo
Learn more
- – 6-month term
- – No impact on credit to apply
- – Instant approval decision
- – Secure and straightforward checkout
Ready to go? Add this product to your cart and select a plan during checkout.
Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.
Learn more about financing & leasing here.
Free shipping on this product
30-day returns
Learn more
FREE 30-day refund/replacement
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 1 left in stock, order soon!
Arrives
Jun 14 – Jun 19
Recently Viewed
Features
- Delivers HIGH OUTPUT 12.0 power in a smaller size and lighter weight
- COOL-CYCLE Active Cooling System provides high-speed cooling for less downtime with COOL-CYCLE capable chargers
- 35min supercharge to 80% with the M18 Dual Bay Simultaneous Super Charger
- Longest life for the most recharges and best performance over the life of the pack
- REDLITHIUM FORGE provides the most powerful, fastest charging, and longest life batteries within REDLITHIUM
Description
Milwaukee M18 18V Lithium-Ion REDLITHIUM Forge XC 8.0 Ah Battery Pack
Number of Batteries: 1 LR44 batteries required.
Brand: Milwaukee
Battery Cell Composition: Lithium Ion
Battery Capacity: 8 Amp Hours
Recommended Uses For Product: Power Tool
Number of Batteries: 1 LR44 batteries required.
Brand: Milwaukee
Model Number: 48-11-1881
Model Name: 48-11-1881
Global Trade Identification Number: 01
UPC: 045242798001
Manufacturer: Milwaukee Electric
Built-In Media: Milwaukee Electric - M18 REDLITHIUM FORGE XC8.0 BA
Warranty Description: Manufacturer Warranty
Item Type Name: Milwaukee Electric - M18 REDLITHIUM FORGE XC8.0 BATTERY PACK
Battery Capacity: 8 Amp Hours
Reusability: Rechargeable
Compatible Phone Models: 18V
Unit Count: 1.0 Count
Battery Weight: 4 Pounds
Item Dimensions: 5.67 x 4.02 x 3.62 inches
Item Weight: 2.5 Pounds
Antenna Location: Power Tool
Battery Cell Type: Lithium Ion
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Jun 14 – Jun 19
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
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.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- PayTomorrow Financing
- Financing through Apple Pay
Learn more about financing & leasing here.
Similar Products
Top Amazon Reviews
The Milwaukee M18 REDLITHIUM FORGE XC8.0 battery is an absolute powerhouse and easily one of the best upgrades for anyone heavily invested in the M18 platform. The performance difference is noticeable right away, especially on high-demand tools like grinders, impact wrenches, blowers, and saws where consistent power really matters. What impressed me most is the combination of runtime and reduced weight compared to some larger high-output batteries. It delivers excellent power without making tools feel overly bulky or unbalanced. The battery also runs cooler under heavy load and charges incredibly fast when paired with a compatible rapid charger, which is a huge advantage on busy jobs or long workdays. Build quality is exactly what you’d expect from Milwaukee—solid, durable, and jobsite ready. The battery gauge is easy to read, and overall reliability has been excellent. If you use M18 tools professionally or just want maximum performance from your setup, the FORGE XC8.0 is absolutely worth the investment. It’s quickly become one of my go-to batteries in the rotation.
...
show more
Reviewed in the United States on May 26, 2026 by Shawn
THIS BATTERY......... I was a bit skeptical about this battery at first because of it's price point. It sold at a fraction of the price than anywhere else in town. With that being said, I do residential remodels and renovations as well as industrial maintenance work. I've used different brands of tools throughout my career(25+ years) and I won't name names, lol. Milwaukee has outlasted all other brands and I highly recommend them. The current job I'm on, I'm basically rebuilding this mobile home and it's me and one other guy that just started using Milwaukee. He got the drill, impact and 6 1/2" circular saw. His combo kit came with a 1.5 amp and a 3.0 amp. I have a 1.5 amp, 3.0 amp, three 6.0xc. Both of us running circular saws, sawzalls and impacts, the army of batteries just couldn't keep up. I'm the type of person that shops around and tries to find the best deals and I came across this beaut. After a little bit of arguing with myself and my experience with Milwaukee won 😂. This battery has more power which means more run time and less downtime. Functions flawlessly. If it's a Milwaukee product(which it is) you are going to get a high quality product. It fits all M18 tools including the packout shop vac. It is slightly heavier than the 6.0xc batteries but the little extra weight is worth it. The durability of it is it does last a lot longer than the 6.0xc batteries but I don't know how it holds up to physical abuse of being accidental being dropped, knocked around in the work truck, etc. I recommend this battery to run the more demanding tools like the shop vac, circular saws(6 1/2" and 7 1/4), angle grinder and the multi tool. However, I only have the traditional battery chargers and when I received the battery, it went onto a charger because it had one bar. It took 3 and a half hours to charge it. I recommend the rapid charger, which has now been added to my " To Get" list.
...
show more
Reviewed in the United States on January 9, 2026 by Adamm E.
Mine is legitimate, verified serial through Milwaukee and warranty until 2028. Self test function works. Mine came in factory packaging. Great deal as they are $299 locally.
Reviewed in the United States on May 18, 2026 by Casitaholland
Considering the normal retail price of these 8.0 A*hl Milwaukee Forge batteries, I was expecting this to be a counterfeit. Amazingly, these are the real deal in the authentic frustrating packaging. When I took the pack apart, the cells, circuitry and plastic are identical down to the mold marks. Tested capacity was 8.1 A*h. Try as I might I could not. find anything fake or inferior about these batteries. They are simply a good deal. Seller did not respond to my question about being an official Milwaukee dealer so you can infer what you will. Most likely that means you would not get any warranty at a Milwaukee service center.
...
show more
Reviewed in the United States on March 12, 2026 by K&R in SD
Nice battery, good quality works very well. I will never buy non Milwaukee batteries again. The pri.\n Ce is high, but you're paying for quality, not junk.
Reviewed in the United States on March 16, 2026 by Mark k.
I was skeptical about ordering this, but it came in an original package charges upgrade works as it should gives my tools a lot more power and longer lasting battery. This battery charges up very fast too. It is definitely a real Milwaukee battery. It goes through the diagnostic when you hold the button it diagnosis itself.
...
show more
Reviewed in the United States on January 9, 2026 Reviewed in the United States on January 9, 2026 by Fredo O
Idk if it’s real or not but it doesn’t last as long as the original one I have. But does what I need it to do.
Reviewed in the United States on January 5, 2026 by Christian Callahan
This battery is a beast. Not much bigger than the 6.0 HO but definitely longer run time. Turned my 1/2” into a honey badger and works well with the 1”. Since it’s a Milwaukee it fits how it’s supposed unlike the off brand batteries. So far seems just as durable with it being dropped a few times and swing around on an impact but only time will tell.
...
show more
Reviewed in the United States on December 20, 2025 by Austin LaPointe