

Hero image 0 of Milwaukee 48-11-1850R M18 18V 5.0 Ah Power Tool Battery, 0 of 10
Milwaukee 48-11-1850R M18 18V 5.0 Ah Power Tool Battery
Key item features
- Durable Construction: Best-in-class construction with resistant housing designed to provide increased protection against exposure to common oils, greases, and solvents.
- All-Weather Performance: Delivers fade-free power in extreme job site conditions, ensuring reliable performance regardless of the environment.
- Fuel Gauge Onboard: Features an onboard fuel gauge that displays remaining runtime for efficient usage and better planning.
- REDLINK Intelligence: Battery circuitry provides optimized performance and overload protection through total system communication between tool, battery, and charger.
- Wide Compatibility: Powers more than 200+ Milwaukee M18 cordless power tools, offering extensive versatility for various applications.
Generated by AI
Specs
- Battery capacity5 Ah
- Compatible modelsM18â tools
- Volts18 V
- Weight1 lb
Current price is USDNow $86.95
You save $122.05
was $209.00$209.00
You save$122.05
Price when purchased online
Out of stock
How do you want your item?
Out of stock
More seller options (1)
Starting from $260.01
Similar items you might like
Based on what customers bought
2Packs HPB18 4.5Ah 18Volt Replacement for Black and Decker 18V Battery and 90556254-01 Charger $29.99
3 optionsAvailable in additional 3 optionsSponsored$2999current price $29.99Options from $29.99 – $56.992Packs HPB18 4.5Ah 18Volt Replacement for Black and Decker 18V Battery and 90556254-01 Charger
544.2 out of 5 Stars. 54 reviewsShipping, arrives in 3+ daysMilwaukee M18 REDLITHIUM CP2.0 Battery $59.99
$5999current price $59.99Milwaukee M18 REDLITHIUM CP2.0 Battery
14 out of 5 Stars. 1 reviewsShipping, arrives in 3+ daysMilwaukee M18 48-11-1850 5.0 AH Batteries 5.0 18V $58.00
$5800current price $58.00Milwaukee M18 48-11-1850 5.0 AH Batteries 5.0 18V
124 out of 5 Stars. 12 reviewsShipping, arrives in 3+ daysMilwaukee M18 48-11-1850 5.0 AH Batteries 5.0 18V (2 pack) $115.00
$11500current price $115.00Milwaukee M18 48-11-1850 5.0 AH Batteries 5.0 18V (2 pack)
123.8 out of 5 Stars. 12 reviewsShipping, arrives in 3+ daysMilwaukee M18 48-11-1850 5.0 AH Batteries 18V $58.00
$5800current price $58.00Milwaukee M18 48-11-1850 5.0 AH Batteries 18V
104.3 out of 5 Stars. 10 reviewsShipping, arrives in 3+ daysMILWAUKEE M12 REDLITHIUM CP2.0 Battery 2-Pack & Charger Starter Kit (48-59-2420P) $74.99
$7499current price $74.99MILWAUKEE M12 REDLITHIUM CP2.0 Battery 2-Pack & Charger Starter Kit (48-59-2420P)
134.6 out of 5 Stars. 13 reviewsSave withShipping, arrives in 2 daysBest seller Milwaukee M18 Redlithium 18V 2Ah Battery 48-11-1820 $34.99 Was $60.97
Best seller
Now$3499current price Now $34.99, Was $60.97$60.97Milwaukee M18 Redlithium 18V 2Ah Battery 48-11-1820
534.8 out of 5 Stars. 53 reviewsShipping, arrives in 3+ daysBest seller Milwaukee 48-11-1850 M18 REDLITHIUM XC 5.0Ah Battery Pack – 18V Lithium-Ion Rechargeable Power Tool Battery $63.99 Was $169.00
Best seller
Now$6399current price Now $63.99, Was $169.00$169.00Milwaukee 48-11-1850 M18 REDLITHIUM XC 5.0Ah Battery Pack – 18V Lithium-Ion Rechargeable Power Tool Battery
1144.5 out of 5 Stars. 114 reviewsSave withShipping, arrives in 2 daysMilwaukee 48-11-1850 2 Pack M18 18V Lithium-Ion Battery 48-11-1852 $115.00
$11500current price $115.00Milwaukee 48-11-1850 2 Pack M18 18V Lithium-Ion Battery 48-11-1852
15 out of 5 Stars. 1 reviewsShipping, arrives in 3+ daysMilwaukee M18 REDLITHIUM FORGE HD12.0 High Output Battery Pack - 18V Lithium-Ion Power Tool Battery - Model 48-11-1813 $214.99 Was $299.00
Now$21499current price Now $214.99, Was $299.00$299.00Milwaukee M18 REDLITHIUM FORGE HD12.0 High Output Battery Pack - 18V Lithium-Ion Power Tool Battery - Model 48-11-1813
924.6 out of 5 Stars. 92 reviewsShipping, arrives in 3+ daysBest seller Milwaukee M18 REDLITHIUM XC 5.0Ah 18V Extended Capacity Battery Pack (48-11-1852) – 2-Pack, High-Performance Batteries for Cordless Power Tools $115.00 Was $269.00
Best seller
Now$11500current price Now $115.00, Was $269.00$269.00Milwaukee M18 REDLITHIUM XC 5.0Ah 18V Extended Capacity Battery Pack (48-11-1852) – 2-Pack, High-Performance Batteries for Cordless Power Tools
5704.4 out of 5 Stars. 570 reviewsShipping, arrives in 3+ daysMilwaukee M18 48-11-1828 18v Red Lithium Battery Xc 3.0ah $44.00 Was $64.99
Now$4400current price Now $44.00, Was $64.99$64.99Milwaukee M18 48-11-1828 18v Red Lithium Battery Xc 3.0ah
Shipping, arrives in 3+ daysMilwaukee 48-11-2401 12V 1.5Ah Power Tool Battery for M12 Cordless Tools, 2 Pack $58.98
$5898current price $58.98Milwaukee 48-11-2401 12V 1.5Ah Power Tool Battery for M12 Cordless Tools, 2 Pack
42.5 out of 5 Stars. 4 reviewsShipping, arrives in 3+ daysMilwaukee 48-11-1850R M18 18V 5Ah XC Extended Capacity Resistant Battery 2 Pack, (48-11-1850Rx2) $129.99
$12999current price $129.99Milwaukee 48-11-1850R M18 18V 5Ah XC Extended Capacity Resistant Battery 2 Pack, (48-11-1850Rx2)
94.4 out of 5 Stars. 9 reviewsShipping, arrives in 3+ daysMilwaukee 48-11-1865 M18 REDLITHIUM HIGH OUTPUT XC 6 Ah Lithium-Ion Battery $99.99
$9999current price $99.99Milwaukee 48-11-1865 M18 REDLITHIUM HIGH OUTPUT XC 6 Ah Lithium-Ion Battery
64.5 out of 5 Stars. 6 reviewsShipping, arrives in 3+ daysBest seller Milwaukee 48-59-1850 M18 REDLITHIUM XC 5.0Ah Battery & Charger Starter Kit $59.00 Was $108.00
Best seller
Now$5900current price Now $59.00, Was $108.00$108.00Milwaukee 48-59-1850 M18 REDLITHIUM XC 5.0Ah Battery & Charger Starter Kit
1294.2 out of 5 Stars. 129 reviewsSave withShipping, arrives in 2 daysMilwaukee M18 REDLITHIUM FORGE XC8.0 18V High-Output Battery Pack — 8.0 Ah, COOL-CYCLE Active Cooling, 35-Minute Supercharge, REDLINK Intelligence, Durable, Long Life for 250 M18 Tools $148.99
$14899current price $148.99Milwaukee M18 REDLITHIUM FORGE XC8.0 18V High-Output Battery Pack — 8.0 Ah, COOL-CYCLE Active Cooling, 35-Minute Supercharge, REDLINK Intelligence, Durable, Long Life for 250 M18 Tools
Shipping, arrives in 3+ daysMilwaukee 48-11-1840 M18 REDLITHIUM XC 4.0Ah Extended Capacity Battery Pack $92.00
$9200current price $92.00Milwaukee 48-11-1840 M18 REDLITHIUM XC 4.0Ah Extended Capacity Battery Pack
21 out of 5 Stars. 2 reviewsShipping, arrives in 3+ daysMilwaukee 48-11-1828 M18 REDLITHIUM XC 3.0Ah Extended Capacity Battery Pack $47.99 Was $56.99
Now$4799current price Now $47.99, Was $56.99$56.99Milwaukee 48-11-1828 M18 REDLITHIUM XC 3.0Ah Extended Capacity Battery Pack
34.3 out of 5 Stars. 3 reviewsShipping, arrives in 3+ daysMilwaukee 18V 6 Ah Power Tool Battery for M18 Tools, 2 Pack $249.00
$24900current price $249.00Milwaukee 18V 6 Ah Power Tool Battery for M18 Tools, 2 Pack
82.5 out of 5 Stars. 8 reviewsShipping, arrives in 3+ days
About this item
Product details
Milwaukee Tool M18 REDLITHIUM XC5.0 Resistant Battery
Milwaukee 48-11-1850R M18 18V 5.0 Ah Power Tool Battery
- Best-in-class construction: Resistant housing designed to provide increased protection against exposure to common oils, greases, and solvents
- All-weather performance: Delivers fade-free power in extreme job site conditions
- Fuel gauge onboard: Displays remaining runtime for efficient usage
- REDLINK™ Intelligence: Battery circuitry provides optimized performance and overload protection through total system communication between tool, battery, and charger
- Versatility: Powers more than 200+ Milwaukee® M18™ cordless power tools
info:
We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here, and we have not verified it.
Specifications
Battery capacity
5 Ah
Compatible models
M18â tools
Volts
18 V
Weight
1 lb
Warranty
Warranty information
3 yr warranty on material and workmanship
Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.
Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.
Warranty url
Warnings
Ingestion Hazard
This product contains a battery. Death or serious injury can occur if ingested. A swallowed battery can cause Internal Chemical Burn in as little as 2 hours. Keep new and used batteries OUT OF REACH OF CHILDREN. Seek Immediate medical attention if a battery is suspected to be swallowed or inserted inside any part of the body.
Popular items in this category
Best selling items that customers love
Milwaukee, 2695-27S M18 18-Volt Lithium-Ion Cordless Power Tools, 18V, 4.0 Ah Battery, 2 Pack $779.99
Sponsored$77999current price $779.99Milwaukee, 2695-27S M18 18-Volt Lithium-Ion Cordless Power Tools, 18V, 4.0 Ah Battery, 2 Pack
54.8 out of 5 Stars. 5 reviewsShipping, arrives in 3+ daysMilwaukee M18 XC RED 18V 3 Ah Power Tool Battery, 2 Count $104.04
$10404current price $104.04Milwaukee M18 XC RED 18V 3 Ah Power Tool Battery, 2 Count
15 out of 5 Stars. 1 reviewsShipping, arrives in 3+ daysMilwaukee Red Lithium 12V 1.5 Ah Power Tool Battery for Milwaukee M12 Tools, 2 Pack $54.99
$5499current price $54.99Milwaukee Red Lithium 12V 1.5 Ah Power Tool Battery for Milwaukee M12 Tools, 2 Pack
223.6 out of 5 Stars. 22 reviewsShipping, arrives in 3+ daysMilwaukee M18 Redlithium 18V 5Ah Battery 48-11-1850 $66.00
$6600current price $66.00Milwaukee M18 Redlithium 18V 5Ah Battery 48-11-1850
344.5 out of 5 Stars. 34 reviewsShipping, arrives in 3+ daysMilwaukee 18V Lithium-Ion 8.0Ah Battery 2 Pack $280.00 Was $305.49
Now$28000current price Now $280.00, Was $305.49$305.49Milwaukee 18V Lithium-Ion 8.0Ah Battery 2 Pack
33.7 out of 5 Stars. 3 reviewsShipping, arrives in 3+ daysMilwaukee M18 Lithium-ion Batteries 3.0 AH Battery 48-11-1828 (2-Pack) $98.99
$9899current price $98.99Milwaukee M18 Lithium-ion Batteries 3.0 AH Battery 48-11-1828 (2-Pack)
64.2 out of 5 Stars. 6 reviewsShipping, arrives in 3+ daysMilwaukee 48-11-1835 M18 18V High Output 3.0 AH Battery Pack $142.95
$14295current price $142.95Milwaukee 48-11-1835 M18 18V High Output 3.0 AH Battery Pack
44.5 out of 5 Stars. 4 reviewsShipping, arrives in 3+ daysMilwaukee 48-11-2401 12V 1.5Ah Li-Ion Compact Battery 3 Pack $87.99
$8799current price $87.99Milwaukee 48-11-2401 12V 1.5Ah Li-Ion Compact Battery 3 Pack
Shipping, arrives in 3+ daysMilwaukee 48-11-2401 12V 1.5Ah Li-Ion Compact Battery 12 Pack $314.99
$31499current price $314.99Milwaukee 48-11-2401 12V 1.5Ah Li-Ion Compact Battery 12 Pack
Shipping, arrives in 3+ daysMilwaukee 48-11-2401 12V 1.5Ah Li-Ion Compact Battery 10 Pack $264.99
$26499current price $264.99Milwaukee 48-11-2401 12V 1.5Ah Li-Ion Compact Battery 10 Pack
Shipping, arrives in 3+ daysMilwaukee M12 Redlithium 12V 1.5Ah Compact Battery 48-11-2401 $27.40
$2740current price $27.40Milwaukee M12 Redlithium 12V 1.5Ah Compact Battery 48-11-2401
144.2 out of 5 Stars. 14 reviewsShipping, arrives in 3+ daysMilwaukee 2626-20 M18 18V Cordless Multi-Tool (Bare Tool) $127.99
$12799current price $127.99Milwaukee 2626-20 M18 18V Cordless Multi-Tool (Bare Tool)
224.4 out of 5 Stars. 22 reviewsShipping, arrives in 3+ daysMilwaukee M12 Redlithium 12V 2Ah Battery 48-11-2420 - Two Pack with Charger $76.00 Was $113.04
Now$7600current price Now $76.00, Was $113.04$113.04Milwaukee M12 Redlithium 12V 2Ah Battery 48-11-2420 - Two Pack with Charger
25 out of 5 Stars. 2 reviewsShipping, arrives in 3+ daysMilwaukee Tool M18 TOP-OFF 175W Power Supply & M18 Redlithium XC5.0 Battery Pack $177.99
$17799current price $177.99Milwaukee Tool M18 TOP-OFF 175W Power Supply & M18 Redlithium XC5.0 Battery Pack
85 out of 5 Stars. 8 reviewsShipping, arrives in 3+ daysBest seller Milwaukee 48-11-2450 12V Lithium-Ion High Output 5Ah Battery 2 Pack $126.99
Best seller
$12699current price $126.99Milwaukee 48-11-2450 12V Lithium-Ion High Output 5Ah Battery 2 Pack
844.7 out of 5 Stars. 84 reviewsShipping, arrives in 3+ daysMilwaukee 48-11-1850 M18 5.0 Ah REDLITHIUM XC Batteries 18V (6 Pack) $364.99
$36499current price $364.99Milwaukee 48-11-1850 M18 5.0 Ah REDLITHIUM XC Batteries 18V (6 Pack)
25 out of 5 Stars. 2 reviewsShipping, arrives in 3+ days
More items to consider
Based on what customers bought
Best seller Milwaukee 48-11-1862 M18 REDLITHIUM HIGH OUTPUT XC 6.0Ah Battery Pack (2pc) $163.99 Was $299.00
Best seller
Now$16399current price Now $163.99, Was $299.00$299.00Milwaukee 48-11-1862 M18 REDLITHIUM HIGH OUTPUT XC 6.0Ah Battery Pack (2pc)
1924.5 out of 5 Stars. 192 reviewsShipping, arrives in 3+ daysMilwaukee 2848-20 M18 18V Cordless Tire Inflator – Compact, Portable Air Compressor, 150 PSI, Tool Only $139.00 Was $199.00
Now$13900current price Now $139.00, Was $199.00$199.00Milwaukee 2848-20 M18 18V Cordless Tire Inflator – Compact, Portable Air Compressor, 150 PSI, Tool Only
1884.7 out of 5 Stars. 188 reviewsSave withShipping, arrives in 2 daysBest seller Milwaukee M18 & M12 Multi-Voltage Charger 48-59-1812 $33.95
Best seller
$3395current price $33.95Milwaukee M18 & M12 Multi-Voltage Charger 48-59-1812
1564.6 out of 5 Stars. 156 reviewsSave withShipping, arrives in 2 daysMilwaukee 2457-20 M12 Cordless 3/8" Ratchet – 35 ft-lbs Torque, 250 RPM, Low-Profile Head, Variable-Speed Trigger, Compact & Durable Design (Bare Tool) $79.99 Was $149.00
Now$7999current price Now $79.99, Was $149.00$149.00Milwaukee 2457-20 M12 Cordless 3/8" Ratchet – 35 ft-lbs Torque, 250 RPM, Low-Profile Head, Variable-Speed Trigger, Compact & Durable Design (Bare Tool)
1434.3 out of 5 Stars. 143 reviewsSave withShipping, arrives in 2 daysBest seller Milwaukee 48-59-1808 12V/18V Power Tool Charger for M12 $39.99 Was $49.99
Best seller
Now$3999current price Now $39.99, Was $49.99$49.99Milwaukee 48-59-1808 12V/18V Power Tool Charger for M12
314.1 out of 5 Stars. 31 reviewsShipping, arrives in 3+ daysMilwaukee 2967-20 M18 FUEL ½" High Torque Impact Wrench with Friction Ring – 18V Cordless Brushless Power Tool (Tool-Only) $242.99 Was $299.00
Now$24299current price Now $242.99, Was $299.00$299.00Milwaukee 2967-20 M18 FUEL ½" High Torque Impact Wrench with Friction Ring – 18V Cordless Brushless Power Tool (Tool-Only)
1724.6 out of 5 Stars. 172 reviewsShipping, arrives in 3+ daysMilwaukee M18 FUEL SAWZALL Reciprocating Saw – Brushless Motor, 3,000 SPM, Heavy-Duty Cordless Cutting Tool 2821-20 (Bare Tool) $134.99 Was $229.00
Now$13499current price Now $134.99, Was $229.00$229.00Milwaukee M18 FUEL SAWZALL Reciprocating Saw – Brushless Motor, 3,000 SPM, Heavy-Duty Cordless Cutting Tool 2821-20 (Bare Tool)
694.5 out of 5 Stars. 69 reviewsShipping, arrives in 3+ days
Customer ratings & reviews
How item rating is calculated
Customer images
Sort by |
Showing 1-3 of 9 reviews
Jan 4, 2026
Casey
5 out of 5 stars review
Verified Purchase
Authentic Power for a good price
Good price for an "authentic" Milwaukee battery. The XC5.0 has great power and endurance in my power-hungry tools like my angle grinder and circular saw.
Helpful?2ENXJN603XUQ1467201802
Jul 8, 2025
DH
5 out of 5 stars review
Verified Purchase
Better choice if you can afford it
I have used DeWalt cordless for work for years until the trigger's started going bad and then had to purchase a Milwaukee M18 set and i believe it is so much better.
Incentivized Review
Helpful?2ENXJN603XUQ1467201802
Oct 28, 2025
Steven
5 out of 5 stars review
Verified Purchase
good product
Works and looks the same as the battery that came with the tool.
Incentivized Review
Helpful?2ENXJN603XUQ1467201802

