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10 Best Battery Powered Grease Guns 2025 in the United States

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Our Top Picks

#1

Winner

DEWALT Grease Gun 20V MAX, Cordless, 42” Long Hose, 10,000 PSI, Variable Speed Triggers, Tool Only (DCGG571B)

Rating
9.9
Chosen by1,222
Additional Features

Most important from
6024 reviews

Additional Features
This grease gun is a game changer for reaching hard-to-access fittings without the usual frustration and mess.

The DEWALT 20V MAX Grease Gun (DCGG571B) is a robust tool designed for high-performance tasks, especially in automotive and heavy machinery maintenance. It boasts a powerful motor that delivers up to 10,000 PSI, making it capable of handling clogged grease fittings efficiently. With a high-volume pump that pushes up to 5.0 oz/min, it is suitable for high-flow applications, ensuring quick and effective lubrication.

The 42-inch flexible hose is a significant advantage for reaching hard-to-access grease fittings, while the bright LED light assists in dark work areas, enhancing visibility and precision. The variable speed trigger allows for precise control of grease flow, providing versatility depending on the task at hand. Additionally, the integrated no-mar foot design offers stability when resting the tool on flat surfaces, and the air-bleeder valve helps in easily priming the pump after cartridge changes.

It is important to note that the product is sold as a bare tool, meaning the battery is not included, which could be an extra cost for potential buyers. Weighing 8 pounds, it might be slightly heavy for prolonged use, which could be a concern for some users. It comes with a solid warranty package, including a 3-year limited warranty, a 1-year free service contract, and a 90-day money-back guarantee, adding to its reliability. This grease gun is particularly well-suited for professionals who require a durable, high-pressure tool for demanding lubrication tasks.

Rating
9.9
Chosen by1,222
Additional Features

Most important from
6024 reviews

Additional Features
This grease gun is a game changer for reaching hard-to-access fittings without the usual frustration and mess.
#2

Milwaukee 2646-20 M18 2-Spd Grease Gun Bare Tool

Rating
9.8
Additional Features

Most important from
3250 reviews

Additional Features
Selectable pump speeds and no leaks or waste of grease make this tool stand out.

The Milwaukee 2646-20 M18 2-Spd Grease Gun is a robust tool designed for heavy-duty use, offering an impressive maximum operating pressure of 10,000 PSI. This high pressure makes it suitable for demanding applications. It features an 18-volt battery system, though batteries are not included with the bare tool, which means you will need to purchase them separately if you don’t already own compatible ones.

The grease gun is designed with user convenience in mind, highlighted by its 48-inch flexible hose that allows access to hard-to-reach fittings and its lock-on/lock-off trigger for ease of use. Additional features like the air bleeder valve for quick priming and the pre-set grease counter dial enhance precision and efficiency during operation. Weighing in at just 4.21 pounds, it is relatively lightweight, reducing user fatigue during prolonged use.

The product comes with a commendable 5-year tool warranty. However, its absence of included batteries might be a drawback for some users, and the need to purchase them separately could be an added expense. This grease gun is well-suited for automotive and industrial applications where high pressure and precise grease application are required.

Rating
9.8
Additional Features

Most important from
3250 reviews

Additional Features
Selectable pump speeds and no leaks or waste of grease make this tool stand out.
#3

TaskStar Electric Grease Gun Kit: 2025 Upgraded 2-in-1 Battery Powered Grease Gun with 2 * 4000mAh Batteries, 90 Degree Coupler Adapter, Efficient for Farmers, Equipment Operators and Homeowners

Rating
9.6
Battery Voltage
Battery Capacity (Ah)
Grease Output Pressure

Most important from
58 reviews

Battery Voltage
Compatible with Makita batteries, making it convenient for users already invested in that ecosystem.
Battery Capacity (Ah)
Having two rechargeable 4000mAh batteries allows continuous work with minimal downtime for charging.
Grease Output Pressure
The powerful 12,000 PSI pressure and about 5.3 ounces per minute flow rate handle both routine and heavy-duty greasing tasks with ease.
Grease Flow Rate
The powerful 12,000 PSI pressure and about 5.3 ounces per minute flow rate handle both routine and heavy-duty greasing tasks with ease.
Weight
The nylon shoulder strap is a thoughtful addition that helps offset the tool’s weight during extended use.
Additional Features
Comes as a complete kit with batteries, charger, gloves, multiple nozzles, and a sturdy case, making it ready to use out of the box.

The TaskStar Electric Grease Gun Kit is a powerful, cordless tool ideal for greasing tractors, trucks, lawnmowers, and other machinery. It runs on two rechargeable 4000mAh batteries, providing good runtime to grease multiple machines before needing a recharge. The grease gun produces a strong 12,000 PSI pressure with a flow rate of about 5.3 ounces per minute, enabling it to handle both routine and heavy-duty tasks efficiently. A 39.4-inch flexible hose and included 90-degree coupler adapter make it easier to reach tight or awkward spots that are usually hard to grease.

An integrated LED light is a useful feature for working in dim areas like garages or under vehicles. Weighing approximately 12.65 pounds, it is somewhat heavy but comes with a shoulder strap to reduce fatigue during longer jobs. The tool supports both bulk grease and standard 14-ounce cartridges, offering flexibility in refilling. The kit is comprehensive, including batteries, charger, various nozzles, gloves, and a storage box, so users get everything needed to start immediately.

Although the weight might be a consideration for some users, the product is compatible with Makita batteries for convenience. Backed by a 3-year support plan, this grease gun serves as a dependable option for farmers, mechanics, and maintenance workers seeking a reliable and efficient cordless greasing tool.

Rating
9.6
Battery Voltage
Battery Capacity (Ah)
Grease Output Pressure

Most important from
58 reviews

Battery Voltage
Compatible with Makita batteries, making it convenient for users already invested in that ecosystem.
Battery Capacity (Ah)
Having two rechargeable 4000mAh batteries allows continuous work with minimal downtime for charging.
Grease Output Pressure
The powerful 12,000 PSI pressure and about 5.3 ounces per minute flow rate handle both routine and heavy-duty greasing tasks with ease.
Grease Flow Rate
The powerful 12,000 PSI pressure and about 5.3 ounces per minute flow rate handle both routine and heavy-duty greasing tasks with ease.
Weight
The nylon shoulder strap is a thoughtful addition that helps offset the tool’s weight during extended use.
Additional Features
Comes as a complete kit with batteries, charger, gloves, multiple nozzles, and a sturdy case, making it ready to use out of the box.

Buying Guide for the Best Battery Powered Grease Guns

Choosing the right battery-powered grease gun can make your maintenance tasks much easier and more efficient. These tools are essential for lubricating machinery and equipment, ensuring they run smoothly and last longer. When selecting a grease gun, it's important to consider several key specifications to find the best fit for your needs. Understanding these specs will help you make an informed decision and get the most out of your purchase.
Battery VoltageBattery voltage indicates the power of the grease gun. Higher voltage typically means more power and longer run times. Common voltages are 12V, 18V, and 20V. If you need a grease gun for heavy-duty tasks or prolonged use, a higher voltage model would be more suitable. For lighter, occasional use, a lower voltage might be sufficient.
Battery Capacity (Ah)Battery capacity, measured in ampere-hours (Ah), determines how long the battery will last on a single charge. Higher capacity batteries (e.g., 4.0Ah or 5.0Ah) will allow you to work longer without needing to recharge. If you have extensive greasing tasks, opt for a higher capacity battery. For smaller jobs, a lower capacity battery will be adequate and may reduce the overall weight of the tool.
Grease Output PressureGrease output pressure, measured in PSI (pounds per square inch), indicates the force with which the grease is dispensed. Higher pressure is useful for pushing grease into tight or clogged fittings. Typical pressures range from 6,000 PSI to 10,000 PSI. For heavy machinery or stubborn fittings, choose a model with higher pressure. For general maintenance, a lower pressure model will suffice.
Grease Flow RateGrease flow rate, measured in ounces per minute, indicates how quickly the grease is dispensed. Higher flow rates can speed up the greasing process, which is beneficial for large-scale tasks. Flow rates can vary from around 3 oz/min to 10 oz/min. If you need to grease many fittings quickly, a higher flow rate is ideal. For precision work or smaller tasks, a lower flow rate will give you better control.
Hose LengthHose length determines how easily you can reach different parts of the machinery. Longer hoses (e.g., 36 inches or more) provide greater flexibility and reach, which is useful for hard-to-access areas. If you often work with large or complex machinery, a longer hose will be beneficial. For simpler tasks, a shorter hose may be more manageable and less cumbersome.
WeightThe weight of the grease gun affects how easy it is to handle, especially during extended use. Lighter models are easier to maneuver and reduce fatigue, but may have lower battery capacity or pressure. Heavier models might offer more power and longer battery life but can be tiring to use. Consider your physical strength and the duration of your tasks when choosing the weight of your grease gun.
Additional FeaturesAdditional features such as LED lights, variable speed triggers, and ergonomic grips can enhance the usability of the grease gun. LED lights help in low-light conditions, variable speed triggers allow for better control over grease flow, and ergonomic grips reduce hand strain. Think about the specific conditions in which you'll be using the grease gun and choose features that will make your work easier and more comfortable.

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