10 Best Battery Powered Grease Gun 2025 in the United States

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.

The DEWALT 20V MAX Grease Gun Kit is a robust tool designed to handle demanding grease applications. One of its standout features is the motor that delivers a powerful 10,000 PSI, making it effective for even the most stubborn grease fittings. The high-volume pump offers an impressive flow rate of up to 5.0 oz/min, suited for high-flow applications. This grease gun also includes a 42-inch flexible hose, which is ideal for reaching hard-to-access areas, and a variable speed trigger for better control over the grease flow.

The inclusion of a bright LED light is a thoughtful addition for working in dark spaces. The air-bleeder valve assists in priming the pump, which can save time and effort when changing cartridges. Additionally, the pump filter screen helps prevent dirt and contamination from clogging the mechanism, enhancing the tool's durability. The grease gun weighs 14.8 pounds, which might be a bit heavy for prolonged use but indicates its durability. The 20V lithium-ion battery included in the kit is powerful and provides decent runtime, although the exact battery capacity is not specified.

The build quality is solid, with a no-mar foot design for resting the tool on flat surfaces without damage. This DEWALT model also comes with a 3-year limited warranty, offering some peace of mind. However, the kit might be on the pricier side and the weight could be a consideration for some users. This grease gun is ideal for professionals who need a reliable and powerful tool for regular heavy-duty use, particularly in automotive and industrial settings.

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.