This hour's deals
−54%
Home · Tool Nut
Two batteries, double the run time
Milwaukee M18 REDLITHIUM XC 5.0Ah 18V Extended Capacity Battery Pack (48-11-1852) – 2-Pack, High-Performance Batteries for Cordless Power Tools
Milwaukee's M18 REDLITHIUM XC 5.0Ah battery two-pack for cordless tool users who hate downtime.
Deal score 8.0 · Steal
$249.00$539.00 Tool Nut's regular price
You save $290.00 at Tool Nut
Deal.ai's agents found this deal on November 10. The store may have changed its price since.
Why it's a great deal
- Tool Nut lists its regular price at $539.00: 54% off by its own figures
- Rated 5.0 out of 5 by 2,000 buyers
Every store we checked
- WalmartNew
In stockSold by Mass Depot LLCReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.
$123.50Free shippingChecked 39 min ago - The Milwaukee StoreNew
In stock
$228.23Checked Nov 7 - Tool NutNew
In stock
$249.00Checked 39 min ago
Reading Tool Nut’s product page for the details…
About it
Power through demanding applications with the Milwaukee M18 REDLITHIUM XC 5.0Ah Extended Capacity Battery Pack (48-11-1852) — a 2-pack engineered for professionals who need maximum runtime, durability, and performance. Designed for contractors, electricians, plumbers, and serious DIYers, these high-capacity batteries deliver up to 2.5x more runtime, 20% more power, and 2x longer life compared to standard lithium-ion batteries. Each REDLITHIUM XC 5.0 battery features advanced cell construction and smart electronics that optimize power output and safeguard against overload, overheating, and over-discharge. Built to perform in harsh conditions, the rugged housing protects against water, vibration, and impact, while the internal design routes moisture away from sensitive electronics — extending the lifespan and maintaining performance even in temperatures below 0°F (-18°C). Milwaukee’s REDLINK Intelligence enables seamless communication between tool, battery, and charger to ensure peak performance and protection during heavy-duty use. The integrated fuel gauge provides real-time battery status, reducing downtime and improving productivity. Compatible with over 250+ Milwaukee M18 cordless tools, including drills, impact drivers, grinders, saws, and nailers, this 2-pack gives professionals the power, versatility, and confidence to get more done on every charge. Whether you’re working in the shop, on the jobsite, or outdoors, the M18 REDLITHIUM XC 5.0Ah batteries deliver consistent, fade-free power that lasts.
About the Milwaukee M18 REDLITHIUM XC 5.0Ah 18V Extended Capacity Battery Pack (48-11-1852) – 2-Pack, High-Performance Batteries for Cordless Power Tools
This is a two-pack of Milwaukee's M18 REDLITHIUM XC 5.0Ah extended-capacity batteries, the mid-size pack in the M18 line. Each battery uses REDLINK electronics to talk to the tool and charger, has an onboard fuel gauge, and is sealed against water and vibration for cold and dirty jobsite use. It fits more than 250 M18 cordless tools. Against Milwaukee's compact 2.0 and 3.0Ah packs it trades some weight for longer runtime, and against the High Output 6.0 and 8.0 packs it gives up peak power in high-draw tools.
Best forM18 owners adding runtime without buying new toolsContractors running saws, grinders and nailersCrews sharing batteries across several toolsCold-weather and outdoor jobsite work
Pros
- Two 5.0Ah packs cover a full day across several tools
- REDLINK protection against overload, overheating and over-discharge
- Fuel gauge shows charge without pulling the battery
- Rugged housing resists water, vibration and impact
- Works with 250+ M18 tools
