Best Battery Powered Grinders

1. AOBEN Cordless Angle Grinder 4-1/2 inch, 21V Battery Grinder Kit, Power Electric Cut Off Tool, Brushless Motor, 2×4.0Ah Battery & Charger, for Metal Cutting, Grinding, Polishing

The AOBEN Cordless Angle Grinder is built for power. It runs on a brushless motor that lasts longer, stays cooler, and saves energy. You get strong performance every time.

Switch between 3 speeds with one button. Cut, grind, polish, or sand with ease. The max speed hits 9500RPM.

With 2x 4.0Ah batteries, you work longer without cords. Protective wheel guards keep you safe. The full kit gives you everything in one case.

2. TEENO Cordless Angle Grinder Kit, 19,500 RPM Mini Electric Angle Grinding Tool with 2 pcs 16.8V 2000mAh Batteries and 6 Cutting Discs, 3-Inch Handheld Grinder for Metal/Wood Cutting and Grinding

The TEENO Cordless Angle Grinder Kit gives you power without limits. With 16.8V cordless freedom and two 2000mAh batteries, you can keep working without pause. Its 19,500 RPM motor makes cutting and grinding fast and easy.

This tool is lightweight and built for one-hand control. With its safety lock and protective guard, you can work with confidence every time.

3. Milwaukee 2880-20 M18 Fuel Brushless Lithium-Ion 4-1/2 in. / 5 in. Cordless Small Angle Grinder with No-Lock Paddle Switch (Tool Only)

The Milwaukee 2880-20 is a powerful cordless grinder. It works with 4-1/2 in. or 5 in. discs. This tool is built for tough jobs.

It has an electronic clutch for kickback protection. The anti-vibration handle keeps you comfortable and safe. These features make it easy to use.

This grinder is compatible with all M18 batteries. It has a 5/8″-11 spindle for common accessories. The Milwaukee 2880-20 is a reliable choice.

4. DEWALT 20V MAX Cordless 4 1/2 Inch Paddle-Switch Grinder, Bare Tool Only (DCG408B)

Get more done with the DEWALT 20V MAX Grinder. It cuts up to 56 pieces of 1/2″ rebar on a single charge. Strong, fast, and built for tough jobs.

Stay safe with Perform & Protect features. The Kickback Brake and E-Clutch stop rotation in seconds. Work with confidence every time.

This tool is lightweight at just 3.55 lbs. The brushless motor delivers up to 9,000 RPM. Power and comfort in one.

5. DEWALT 20V MAX* Angle Grinder Tool Cordless Brushless, 4 1/2 Inch, with Paddle Switch and Kickback Brake, Tool Only (DCG413B)

The DEWALT 20V MAX* Angle Grinder is built tough. Its brushless motor means no brush changes. The brake stops the wheel fast for added safety.

The Kickback Brake shuts the tool down if it binds. The two-stage trigger adds extra control.

6. FULLYEA Cordless Angle Grinder 4-1/2 inch, 12000 RPM Brushless Motor Electric Grinder Power Tools with 2×4.0Ah Battery & Fast Charger, Power Metal Grinder for Cutting, Grinding, Polishing

The FULLYEA Cordless Angle Grinder packs serious power with its brushless motor hitting up to 12000 RPM. It’s built for cutting, grinding, and polishing with ease. And thanks to its cordless design, you can work anywhere without limits.

With 2×4.0Ah batteries and a fast charger, you get double the run time and quick recharges. Plus, the ergonomic design keeps you safe, steady, and in control.

7. Angle Grinder 4-1/2 Inch Cordless Compatible with Milwaukee 18V/M18 Battery

The Angle Grinder 4-1/2 Inch Cordless works with Milwaukee 18V/M18 batteries. It’s a tool-only product, so batteries are not included.

It has a brushless motor for longer life and quiet operation. The 6-speed control lets you adjust for cutting, grinding, or sanding. Its ergonomic grip and lock switch make it safe and easy to use.

8. Rivlox Cordless Angle Grinder Kit, 3-inch Mini Angle Grinder Tool

The Rivlox Cordless Angle Grinder Kit gives you freedom and power in one tool. No cords. No hassle.

It runs on a 12V lithium battery. The high-speed motor cuts, grinds, and polishes with ease. The spindle lock makes accessory changes fast and safe.

Built with a ventilation system to stop overheating. Protected by a durable guard against flying debris. Comes as a complete kit with batteries, charger, discs, and more.

9. Rhovixstar Cordless Angle Grinder 3/8″-16-21V Brushless Motor Battery Grinder Kit, Power Cut Off Tool with 2×4.0Ah Battery & Charger, Grinding Accessories for Metal Cutting, Grinding, Polishing

The Rhovixstar Cordless Angle Grinder packs serious power in a compact body. Its brushless motor runs cooler, lasts longer, and delivers up to 9000 RPM with adjustable speeds. This means you get smooth polishing or aggressive cutting—all with one tool.

Swap batteries fast. Work anywhere. Keep grinding all day. With 2×4.0Ah batteries and a rapid charger, you’ll never be stuck waiting for power.

Built for comfort and safety. The ergonomic handle reduces wrist strain, while smart overload protection keeps the motor safe. At under 4 lbs, this cordless grinder is perfect for tight spaces and tough jobs.

10. CRAFTSMAN V20* Angle Grinder, Small, 4-1/2-Inch, Tool Only (CMCG400B)

The CRAFTSMAN V20* Angle Grinder is a powerful tool for tough jobs. It runs at 8,500 RPM, making it great for heavy-duty work.

It stays cool with a cast metal gear housing. The tool-free guard and 3-position handle make it easy to use. Plus, the contoured handle adds comfort. Battery and charger sold separately.