This bundle pairs the Milwaukee M18 FUEL 5 in. Random Orbital Sander with the Milwaukee M18 REDLITHIUM XC5.0 Oil & Solvent Resistant Battery, so the bare-tool sander arrives with an M18 pack ready to run. Model Numbers: 2837-20 (M18 FUEL 5 in. Random Orbital Sander, tool only), 48-11-1850R (M18 REDLITHIUM XC5.0 Resistant Battery).

The 2837-20 is a cordless random orbital sander built for carpenters, remodelers, and general contractors who sand on site. Milwaukee rates it for up to 12,000 OPM under load, and 5-mode speed control lets you back it down for delicate material or final passes. The 3/32 in. orbit is aggressive enough to move material and controlled enough to leave a consistent stain-grade surface with the right grit progression.

It is a true palm sander: 7.9 in. long, 5.5 in. high, 6.4 in. wide, and 3.1 lbs. A form-fitting pommel grip and low vibration reduce hand fatigue on longer runs. The removable edge guard protects adjacent finished surfaces, and REDLINK PLUS intelligence provides overload, heat, and over-discharge protection. Dust handling includes a dust bag, a universal hose adapter, up to 95% dust collection with a compatible extractor, and VACLINK wireless dust control capability.

The 48-11-1850R is the M18 REDLITHIUM XC5.0 battery with a resistant housing that adds protection against common oils, greases, and solvents found in automotive and manufacturing environments. It delivers the same performance as the standard XC5.0: 2.5X more runtime and 20% more power than standard lithium-ion batteries. It runs cooler, performs in cold weather, and uses REDLINK Intelligence for overload and discharge protection, plus a temperature management system and individual cell monitoring. An onboard fuel gauge displays remaining runtime, and the pack works with all 200+ Milwaukee M18 solutions.

This is the right buy for anyone who wants the M18 FUEL sander plus a full-size pack in one order: pros adding a battery to the rotation, or crews who want a solvent-resistant pack that also moves to the rest of their M18 tools. A charger is not included.

M18 FUEL Sanding, Battery Included

The 2837-20 is a serious cordless palm sander, and this bundle adds a full-size XC5.0 pack so it's not a bare tool anymore.

• Who it's for: Carpenters, remodelers, and finish crews who want the M18 FUEL sander plus a battery in one order.
• Why it stands out: Strong loaded speed, low vibration, 95% dust collection capability, and VACLINK, paired with a battery housing built to resist oils, greases, and solvents.
• Worth knowing: One battery is included and no charger. If you are new to M18, plan on adding a charger. The 2.5X runtime and 20% power figures are Milwaukee's comparison against standard lithium-ion packs, not a sander-specific runtime rating.

• Does this include a charger? No. The bundle includes the sander and one 48-11-1850R XC5.0 Resistant battery. Any Milwaukee M18 charger works.
• Is the resistant battery different from a standard XC5.0? It performs the same as the standard M18 REDLITHIUM XC5.0 and fits the same tools. The housing adds resistance to common oils, greases, and solvents.
• Can the battery be used on my other M18 tools? Yes. It is compatible with all 200+ Milwaukee M18 solutions.
• Can the sander connect to dust extraction? Yes. It includes a dust bag and a universal hose adapter, and supports VACLINK wireless dust control with a compatible Milwaukee dust extractor.