10 Best Battery Powered Grease Gun 2026 in the United States

The DEWALT 20V MAX Grease Gun is designed for those who need a reliable, powerful tool for grease application, especially in automotive settings. One of its standout features is its impressive maximum pressure of 10,000 PSI, which allows it to tackle even the toughest clogged grease fittings with ease. Additionally, the high-volume pump can push out up to 5.0 oz/min, making it efficient for larger jobs. The 42-inch flexible hose is a great asset for reaching hard-to-access locations, while the variable speed trigger gives users precise control over grease flow, enhancing usability.

The built-in LED light is a thoughtful addition, helping to locate fittings in dimly lit areas. The grease gun also features an integrated no-mar foot design, allowing it to be rested on surfaces without damaging them, and an air-bleeder valve to simplify priming after cartridge changes.

There are a few drawbacks to consider. The tool is sold as a bare unit, meaning it does not come with a battery or charger, which could be an additional expense if you don’t already own DEWALT 20V batteries. While it weighs around 8 pounds, some users might find it a bit heavy during prolonged use, especially in tight spaces. Additionally, while the build quality is solid, it might not withstand drops or rough handling as well as some heavier-duty models.

The Seesii Grease Gun is a versatile and high-efficiency tool designed for machinery owners, farmers, and construction operators. It boasts a powerful 12,000 PSI maximum pressure and a flow rate of 5.3 oz/min, which significantly reduces the physical effort and time required for greasing tasks.

The inclusion of two 2.0 Ah batteries ensures extended usage, allowing it to grease up to eight tractors on a single charge. Moreover, its compatibility with Ma-kita 18V batteries provides additional flexibility. The 39.4-inch flexible hose and built-in LED light facilitate precise greasing in low-light conditions and hard-to-reach areas. Additionally, the shoulder strap enhances comfort during prolonged usage, making it an ergonomic choice for users.

The versatility of the Seesii Grease Gun is further highlighted by its 2-in-1 design, supporting both bulk and cartridge loading, and its compatibility with various types of machinery. However, at 11.66 pounds, it is relatively heavy, which could be a drawback for users who need to carry it around frequently. The comprehensive kit includes useful accessories such as a quick-release coupler, flat coupler, pointed nozzle, and a carrying case, ensuring you have everything you need for efficient greasing.

The Milwaukee 2646-20 M18 2-Spd Grease Gun is a strong contender in the battery-powered grease gun category, especially for those who need a reliable tool for heavy-duty greasing tasks. Its standout feature is its impressive maximum pressure of 10,000 PSI, making it highly effective for delivering grease to tough fittings. This level of pressure is ideal for automotive and industrial applications where high performance is crucial.

One of the practical features is the 48-inch flexible hose, which allows users to easily access tight spaces. This flexibility is a big plus when working on machines or vehicles that have hard-to-reach grease fittings. The addition of an air bleeder valve makes priming quick, which is a time-saver in busy work environments. User convenience is enhanced by the lock-on/lock-off trigger, allowing for continuous operation without the need to hold down the trigger constantly. This can be particularly helpful during lengthy greasing sessions.

The new pre-set grease counter dial is another innovative aspect, enabling precise application and reducing waste. This can be particularly valuable for professionals who need to apply specific amounts of grease consistently. The Milwaukee grease gun doesn't come with batteries or a charger, which means you’ll need to invest in those separately if you don’t already own compatible Milwaukee batteries. Some users might find the weight of the tool a bit cumbersome during extended use, although the build quality and durability are generally praised, indicating it can handle tough working conditions.