The Milwaukee 48-11-1840 M18 REDLITHIUM XC4.0 Extended Capacity Battery provides a 4.0Ah step up for users who want more runtime from the standard REDLITHIUM XC format. Its lithium-ion pack is designed for use across Milwaukee's M18 lineup, giving a middle ground between smaller compact batteries and heavier premium high-output options. Milwaukee lists the same familiar XC form factor as other standard extended-capacity packs, which helps maintain predictable tool balance. It is well suited for general construction, remodeling, and maintenance work where runtime matters more than minimizing every ounce.
What tools is the 48-11-1840 battery compatible with?
It is compatible with Milwaukee M18 cordless tools across the M18 platform.
How long does it take to charge?
Milwaukee lists charge times of 76 minutes on a standard charger, 48 minutes on a rapid charger, and 48 minutes on a super charger.
How much capacity does it provide?
This battery provides 4.0Ah of capacity at 18V for longer runtime than XC3.0 and compact packs.
Does it have a fuel gauge?
No. The 48-11-1840 does not include a fuel gauge.
How does it compare with smaller standard XC batteries?
It adds runtime over the XC3.0 while staying within the same standard REDLITHIUM XC family rather than moving to HIGH OUTPUT.
What warranty comes with the battery?
The 48-11-1840 includes a 3-year limited warranty.
# Milwaukee M18 REDLITHIUM XC4.0 Extended Capacity Battery **Model:** `48-11-1840` **Brand:** Milwaukee **Category:** Battery > The Milwaukee 48-11-1840 M18 REDLITHIUM XC4.0 Extended Capacity Battery provides a 4.0Ah step up for users who want more runtime from the standard REDLITHIUM XC format. Its lithium-ion pack is designed for use across Milwaukee's M18 lineup, giving a middle ground between smaller compact batteries and heavier premium high-output options. Milwaukee lists the same familiar XC form factor as other standard extended-capacity packs, which helps maintain predictable tool balance. It is well suited for general construction, remodeling, and maintenance work where runtime matters more than minimizing every ounce. ## Specifications | Attribute | Value | |---|---| | Product Type | Battery | | Voltage (V) | 18 | | Amp Hours | 4 | | Battery Platform | M18 | | Battery Line | REDLITHIUM | | Fuel Gauge | No | | Oil Resistant | No | | Charge Time Standard Min | 76 | | Charge Time Rapid Min | 48 | | Charge Time Super Min | 48 | | Weight (lbs) | 1.54 | | Height (in.) | 2.8 | | Length (in.) | 4.5 | | Width (in.) | 3.1 | | Warranty | 3-year limited | ## What's Included - (1) M18 REDLITHIUM XC4.0 Battery Pack (48-11-1840) Source: https://www.jaspecs.com/milwaukee/battery/48-11-1840-m18-redlithium-xc4-0-battery/