Milwaukee
48-11-1850 M18 Redlithium XC 18V Lithium-Ion Battery Pack, 5.0 Ah
Key Features
AI Generated- Heat‑resistant design keeps the battery cool under load.
- Heat is regulated by the battery’s internal temperature management technology.
- The high‑capacity 5.0 Ah pack keeps your tools running when you need them most.
- The battery’s versatility lets you switch between tools without swapping packs.
Delivery and shipping
Local Delivery
Shipping
Return Policy
Easy returns available. Eligibility rules may apply.
The Milwaukee 48-11-1850 M18 REDLITHIUM XC battery pack is an extended-capacity power source engineered for use with over 60 M18 cordless power tools. This 5.0 amp-hour, 18-volt lithium-ion battery delivers significantly more runtime, power, and longevity than standard 18V lithium-ion batteries, making it essential for both professional contractors and dedicated DIY users who demand consistent performance on job sites.
Whether you're drilling, driving, cutting, or tackling heavy-duty applications, this battery pack solves the problem of frequent recharging and power loss during demanding work. Its advanced design protects against jobsite hazards, operates reliably in extreme cold weather below 0°F, and minimizes downtime so you can complete projects efficiently without interruption.
Features and Benefits
- Extended Runtime: Delivers up to 2.5 times more runtime and 2 times more recharges compared to standard 18V lithium-ion batteries.
- Increased Power: Provides 20% more power per charge, enabling you to tackle tougher applications without battery depletion.
- REDLINK Intelligence Protection: Exclusive Milwaukee technology prevents overloads and discharge damage to your cordless tools during heavy-duty use.
- Jobsite Durability: Water-resistant design routes moisture away from electronics, withstands vibration and drop impacts, and operates in extreme cold conditions below 0°F.
- Heat Management: Integrated thermal monitoring minimizes heat buildup and extends overall battery lifespan.
- Fuel Gauge Display: Real-time battery level indicator shows remaining charge so you know when to swap or recharge.
- Full System Compatibility: Works with 60+ M18 cordless solutions across Milwaukee's tool lineup.
Specifications
- Brand: Milwaukee
- Model: 48-11-1850
- Voltage: 18V
- Capacity: 5.0 Ah (Amp-Hours)
- Battery Type: Lithium-Ion
- Compatible with M18 cordless power tools
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Reviews
Customer Reviews
Battery issue
I just switched from Dewalt and bought the drill combo pack. 2 batteries won’t charge and get the red/green light in the charger.
working for the job
this battery has been working well for me so far!s
Battery issue
I recently purchased several milwwaukee M18 power tools for my home work shop. I also purchased 3 extended life m18 red lithium xc 5.0. One of the xc 5.0 batteries will not charge. Flashing red and green light. I do hope this isn't going to be a problem with my other batteries. I am very pleased with the tools them self's. Plan on purchasing more Milwaukee tools.
Excellent!!
I have a couple of these batteries and they have good charging time, they have dropped a couple of times from a medium height and I can say that they still work well.
Dependable
I’m going to use this battery to use my Milwaukee fan. Preparing for hurricane Milton???
5.0ah battery's are my first grab.
Best value battery for the buck. My 5 ah battery are my first grab when using tools
Awesome product but
Only draw back I have is the initial charging time
Best tools out there.
Only tools and batteries I will buy. From the M12 to the M18.
Great total life
Great total life! Quick charging and large storage capacity!
Good power
Great power to weight ratio I think this is one of the best a.h. Power choices.
Red lithium is the #&!!!@!!!! Man!
Plenty of power ontap here makes my tools come alive when I these off the charger the battery is cool and rdy to do it's thing I can't see where you can get more performance anywhere red lithium thanks
Best tools in the business.
Love it. So glad i upgraded from a different manufacturer. Being a journeyman mecanici require the best most dependable tools, and Milwaukee provides that.
Battery
Awesome battery glad I started using Milwaukee tools
Love my M18™ REDLITHIUM™ XC5.0 Extended Battery
I have not run this batt out yet. Lasts much longer than my other brands. Love it
Everything you’d expect from Milwaukee!
Everything you’d expect from Milwaukee! Definitely more power and lasts longer than its competitors’ 5amp batteries!
Long lasting battery
Powerful battery. It lasted 2 days in my fan. It’s amazing the battery technology these guys have created.
Wondering about batteries
Does Milwaukee batteries have built in discharge protection?
Best battery out there.
Excellent life, Very durable, great out-put. Power to last the whole day through.
Milwaukee fan
Been using Milwaukee for years and they are by far the best on the market.
M18 5ah so far so good
Bought a single 5ah today with charger. Was fully charged in less than an hour from 1 bar. M18 compressor will be here tomorrow. Hopefully all goes well
Great batteries
Great battery as usual. Came in a set of 2 batteries and a single port M18/M12 combo charger.
Great tools
Battery life is long on these batteries. Milwaukee has the best tools.
Battery review
Battery last longer then anything I've had doesn't matter how hard you use it. Love it.
Battery charged quickly and lasted throughout the day
Must have!
Great power and longer running time. Heavy on drills but its worth it.
Long lasting, at least for me.
This battery seems to last forever. I put together several projects and didn't need to charge. If I was using my other (brand drill I would have gone through at least 3 batteries.
Just arrived, won't charge
My 5.0 XC came in a special offer with a leaf blower. Put in on the charger for 6 hours until the charger light turned green, but the red LED on the battery is still on the first level. My batter might be DOA.
good battery
very good product would recommend for all m18 tools
A great battery at a decent price
These batteries are excellent. Being more of a hobbyist, they last long enough to tackle most work I may encounter
Battery worked great for a couple months
Ive had a couple of these battery. Each battery has only last me couple months and then you put at in the charger and the charger says battery is fully charged when the battery has no charge to it.
M18 5.0 battery
Super long charge life. Great power. Not too heavy.
Milwaukee 5.0 battery
Great tool , have a bunch of them ! Just don’t let them get cold
Good quality goes a long way.
The battery pack last longer then my other cordless’s drill packs
Tool & batteries
It’s a great product It is the only cordless tools I purchase
M18 5.0
I use a (surge impact and a hammer drill, circ saw and sawzall This battery doesn’t let me down . Also , a pack out light .
Love the battery and want to travel with it.
Great battery and use these tools exclusively. Want to be able to fly with the tools, but need an IATA certification for them. Would Milwaukee be able to provide this for me or do I need to go out and buy corded tools?
this is the 1 if you got a m18 vac
if you got a m18 vac like a compact cordless style i would just stick this 1 rather than going anymore hirer for battery time & $ spending .
Great product with major flaws no
1/2 impact and battery wear out quickly causing the battery to flop around and loose contact. Would be very easy for Milwaukee to fix this problem. I currently have to use a zip tie to hold the battery from moving on my impact. I have over $3000.00 worth of Milwaukee tools, love them but they need refinement.
Super long run time
I love this battery, Paired up with my M18 hammer drill i get 5 hours of run time
Excellent Runtime
I use this mainly with my lights, Tower LED,Site Lite, and Tower Light. Provides hrs and hrs of runtime