This bundle pairs the Milwaukee M18 REDLITHIUM XC5.0 Extended Capacity Battery, 2-Pack with the Milwaukee M18 REDLITHIUM XC5.0 Oil & Solvent Resistant Battery, giving M18 users three 5.0Ah packs in a single listing. Model Numbers: 48-11-1852 (two 48-11-1850 XC5.0 battery packs), 48-11-1850R (XC5.0 Oil & Solvent Resistant battery pack).

The 48-11-1852 two-pack is a pair of 18V 5.0Ah lithium-ion batteries for Milwaukee M18 cordless tools. Milwaukee's REDLINK Intelligence manages communication between the battery, tool, and charger to optimize performance and protect against overload, and discharge protection helps prevent cell damage over time. The pack construction is built to handle vibration, drops, and heat, with a design that routes water away from the electronics. Each pack has an onboard fuel gauge so you can check remaining charge before you start the next task.

The 48-11-1850R is the same XC5.0 capacity class in an oil and solvent resistant build. That matters for mechanics, plant maintenance crews, and service techs whose batteries see shop chemicals and grime that wear on standard housings. It drops into the same M18 tools as the other two packs.

All three batteries run on the Milwaukee M18 platform, which Milwaukee states covers 250+ cordless solutions. The 5.0Ah XC format is the middle ground many users prefer: more runtime than compact packs without stepping up to the heavier high-output batteries.

This set fits crews and shops already invested in M18 that want to add battery depth in one purchase, especially if at least one tool regularly works around oil, solvents, or shop fluids.

Three M18 packs, one built for the dirty jobs

This set adds real battery depth to an M18 lineup and covers the one tool that lives around shop fluids.

• Who it's for: M18 users in automotive, maintenance, and service work who need more than two batteries in rotation.
• Why it stands out: Three XC5.0 packs in one order, with one oil and solvent resistant pack for harsher environments.
• Worth knowing: No charger is included. The runtime, power, and life ratings quoted above come from Milwaukee's REDLITHIUM XC5.0 line and are versus standard lithium-ion, not versus other M18 packs. Only one of the three batteries is the oil and solvent resistant version.

• How many batteries come in this bundle? Three: two 48-11-1850 XC5.0 packs (the 48-11-1852 two-pack) and one 48-11-1850R Oil & Solvent Resistant XC5.0 pack.
• Is a charger included? No. This bundle is batteries only.
• Will these fit my M18 tools? Yes. All three are Milwaukee M18 batteries designed for M18 cordless tools.
• What is the difference between the 48-11-1850 and the 48-11-1850R? Both are 5.0Ah XC5.0 M18 batteries. The 48-11-1850R has an oil and solvent resistant housing for work environments with fluid and chemical exposure.