10 Best Battery Powered Grease Guns 2025 in the United States

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.

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.

The Milwaukee 2446-20 M12 12-Volt Cordless Grease Gun is a robust tool designed for ease of use and durability. With a 12V battery voltage, this grease gun delivers over 8,000 PSI of grease output pressure, making it powerful enough for various automotive and machinery applications. It features a superior handle balance and ergonomics, weighing in at 7.2 pounds and measuring 14 inches in length, making it relatively easy to handle for extended periods.

The integrated hose storage and LED fuel gauge add to user convenience by reducing downtime and providing clear battery status. The 36-inch flex hose with a spring guard ensures flexibility and reach in tight spaces. Additionally, the air bleeder valve helps in priming for quick grease flow, saving time during operations.

It is important to note that the product is sold as a tool-only option, meaning the battery and charger need to be purchased separately, which could be an additional expense. Despite this, the tool's ability to dispense up to 7 grease cartridges per charge showcases its efficiency. Manufactured in China, the Milwaukee grease gun might be ideal for professionals who need a reliable, cordless solution for frequent grease applications.