Tired of the struggle and mess of manual grease guns? Upgrading to a battery-powered model can revolutionize your maintenance routine, saving you time and effort on everything from farm equipment to automotive work. These cordless tools deliver consistent, high-pressure grease flow with the simple pull of a trigger, making tough jobs like clearing clogged fittings surprisingly effortless.
With so many options on the market, choosing the right one for your needs is crucial. This roundup cuts through the noise to bring you a detailed look at the top eight battery grease guns available. We’ve evaluated their power, features, and overall value to help you find the perfect tool to keep your machinery running smoothly.
Our Top Picks for Battery-Powered Grease Guns
- DEWALT Grease Gun 20V MAX, Cordless Electric Grease Gun
- DEWALT Grease Gun Kit 20V MAX with Battery and Charger
- Milwaukee 2646-20 M18 2-Spd Grease Gun Bare Tool
- TaskStar Electric Grease Gun Kit: 12000 PSI 2-in-1 Battery Powered
- Lincoln 1884 PowerLuber 20 Volt Battery Powered Grease Gun
- DEWALT 20V MAX Cordless Grease Gun
- Lincoln Industrial 1162 Battery-Powered Grease Gun
- BLACK+DECKER 20V Max Cordless Grease Gun
DEWALT Grease Gun 20V MAX, Cordless Electric Grease Gun
This DEWALT 20V MAX model is a professional-grade tool built for demanding applications. Its motor generates an impressive 10,000 PSI of maximum pressure, allowing it to power through even the most stubborn, clogged grease fittings with ease. The high-volume pump ensures a rapid 5.0 oz/min flow rate for high-flow tasks, significantly speeding up your lubrication work.
User control is a key benefit, thanks to the variable speed trigger. This feature lets you precisely manage the grease flow, preventing over-greasing and minimizing waste. As a tool-only option, it’s an excellent choice for those who already own DEWALT’s 20V MAX battery platform, offering a seamless addition to their existing collection of cordless tools.
DEWALT Grease Gun Kit 20V MAX with Battery and Charger
This DEWALT kit includes everything you need to get started right out of the box. It shares all the powerful features of the tool-only model—including the 10,000 PSI motor and 5.0 oz/min flow rate—but comes bundled with a battery and charger. This makes it a complete, ready-to-use solution for both new users and professionals looking for a dedicated grease gun setup.
The inclusion of the variable speed trigger provides the same precise control, helping to manage grease application effectively. For anyone not already invested in the DEWALT battery system, this kit represents tremendous value and convenience, eliminating the need for separate purchases and ensuring you can begin your maintenance tasks immediately.
Milwaukee 2646-20 M18 2-Spd Grease Gun Bare Tool
The Milwaukee M18 Grease Gun is a robust contender known for its industry-leading 10,000 PSI max operating pressure. A standout feature is its two-speed operation, giving users the flexibility to choose between a high-flow mode for fast lubrication and a high-pressure mode for tackling seized or difficult fittings. This versatility is a major advantage in varied working conditions.
It also includes a generous 48-inch flexible hose, which provides superior access to hard-to-reach grease points on complex machinery. The integrated air bleeder valve simplifies the priming process, making it quick and straightforward to remove trapped air from the system, which ensures consistent performance from the first trigger pull.
TaskStar Electric Grease Gun Kit: 12000 PSI 2-in-1 Battery Powered
The TaskStar grease gun stands out with its exceptional 12,000 PSI of pressure, making it one of the most powerful options available. This upgraded motor is specifically built for heavy-duty jobs, easily blasting through stuck fittings that would stop other guns in their tracks. Its high 5.3 oz/min flow rate further contributes to rapid job completion.
Its unique 2-in-1 design is a significant time-saver. With a simple twist, you can change the tool’s form factor to suit different applications, eliminating the need to switch between multiple tools. This hands-free efficiency is a major benefit, reducing physical strain and fatigue during long maintenance sessions, which is especially helpful for farmers and equipment operators.
Lincoln 1884 PowerLuber 20 Volt Battery Powered Grease Gun
Lincoln’s PowerLuber is engineered for longevity, featuring a hardened steel piston, radiused metal gearing, and a high-torque motor. This robust construction is designed to provide years of dependable service in automotive, agricultural, and industrial settings. The tool delivers up to 10,000 PSI, effectively busting through dirty fittings and reducing grease waste.
User-friendly features are a central focus. The built-in vent valve allows for easy purging of trapped air, simplifying the priming process. Its ergonomic design includes a comfort grip, a three-point base for stability, and a built-in LED light to illuminate your work area, all of which help to reduce user fatigue during extended use.
DEWALT 20V MAX Cordless Grease Gun
This DEWALT 20V MAX Cordless Grease Gun is a solid option for those seeking the reliability of a major tool brand. It is designed to integrate seamlessly with the extensive 20V MAX battery ecosystem, making it a convenient choice for existing users. The tool is built to handle rigorous use in professional environments.
You can expect performance characteristics typical of the DEWALT line, such as high-pressure output for clearing blockages and a design focused on user comfort and control. Its cordless nature provides the freedom to move around large equipment or vehicles without being tethered to an air compressor or power outlet.
Lincoln Industrial 1162 Battery-Powered Grease Gun
The Lincoln Industrial 1162 is another professional-grade offering from a trusted name in lubrication. It is engineered for durability and consistent performance in demanding industrial and fleet maintenance applications. The cordless design enhances mobility, allowing technicians to service machinery on the shop floor or in the field with ease.
This model is likely built with features that prioritize ease of use and reduced maintenance downtime. As part of Lincoln’s product line, it probably includes thoughtful design elements like easy-priming mechanisms and robust construction to withstand the rigors of daily professional use, ensuring reliable operation when it’s needed most.
BLACK+DECKER 20V Max Cordless Grease Gun
The BLACK+DECKER 20V Max Cordless Grease Gun brings the convenience of battery power to a more accessible price point. It is an ideal solution for homeowners, DIY enthusiasts, and those with lighter-duty greasing needs. Its compatibility with the 20V MAX system offers flexibility for users who may own other tools from the brand.
This tool provides a welcome alternative to manual pumping, saving time and effort on common tasks like lubricating vehicle fittings, trailer bearings, and lawn equipment. It offers a balance of sufficient power for most general applications and the user-friendly operation that the BLACK+DECKER brand is known for.
Buying Guide: What to Look For in the Best Battery Grease Gun
When I started looking for my first battery-powered grease gun, I was overwhelmed by the options. It’s not just about picking the shiniest one off the shelf. To find the right tool for your garage or shop, you need to focus on a few key areas that directly impact performance and value. Getting this right means you’ll have a reliable partner for years of maintenance work.
First, consider the power source. Most of the best battery grease guns on the market use a cordless platform. This is a huge deal if you already own other power tools. If you’re invested in the DeWalt 20V MAX system or the Milwaukee M18 line, it makes a ton of sense to stick with that brand for your grease gun. You can share batteries and chargers, which saves a significant amount of money and reduces clutter. The voltage is also important, as it generally relates to power. A 20V gun will typically deliver higher pressure than a 12V model, which is crucial for pushing thick grease into stubborn fittings.
Next, look at the pressure rating, measured in PSI (pounds per square inch). This is the muscle of the gun. A higher PSI, like 10,000, is better for heavy-duty tasks on farm equipment, trucks, or construction machinery where fittings can be seized or require high pressure to fill. For lighter automotive work or routine maintenance on lawn tractors, a gun with 6,000 to 7,500 PSI is often plenty. Don’t ignore the grease cartridge capacity either. A standard 14.5-ounce cartridge is common, but some guns can handle bulk loading from a pail or tube, which is more cost-effective for high-volume users.
Finally, pay attention to the ergonomics and features. How does it feel in your hand? Is it well-balanced? A poorly balanced gun can be a pain to use all day. Features like a flexible hose, a quick-release coupler, and an LED work light might seem like small additions, but they dramatically improve the ease of use, especially in tight, dark spaces. A clear grease level viewport is another simple feature that saves you from running out of grease mid-job unexpectedly. By weighing these factors—battery compatibility, pressure, capacity, and user-friendly features—you can confidently select a tool that fits your specific needs and budget.
Frequently Asked Questions
How long does the battery typically last on a single charge?
Battery life can vary a lot depending on the gun’s power demands and the capacity of the battery itself. From my experience, a standard 2.0 Ah battery on a mid-range model can typically grease 15 to 20 automotive fittings on a single charge. For larger jobs, I always recommend having a spare, fully-charged battery on hand. Higher-capacity batteries, like a 4.0 Ah or 5.0 Ah, will obviously last much longer, often handling an entire tube of grease or more. It’s one of the reasons why sticking with a cordless tool brand you already use is such a smart move for the best battery grease guns.
Can I use any type of grease with a battery-powered grease gun?
Most modern guns are designed to work with standard NLGI #2 lithium or calcium-based greases that come in 14.5-ounce cartridges. However, you can’t just use any grease. It’s critical to check the manufacturer’s manual for compatibility. Some greases, like certain thick moly-based or synthetic blends, might be too stiff for the pump mechanism in some models and could cause damage or poor performance. If you need to use a specialty grease, look for a gun that offers a higher pressure rating and confirm it’s rated for that specific grease type.
Are these grease guns difficult to load and prime?
This was a major concern of mine when I switched from a manual gun. The good news is that loading is generally straightforward and similar to a manual gun: you open the head, insert the cartridge, and close it. The priming process, however, is where battery-powered models shine. Instead of pumping a handle repeatedly to get grease flowing, you simply pull the trigger. The electric motor does all the work, pushing the grease through the pump and hose until it’s fully primed and ready to go. It’s one of the biggest time-saving advantages.
What is the main advantage over a manual or air-powered grease gun?
The main advantage is pure convenience and reduced effort. With a manual gun, you can get a serious workout, especially on high-pressure fittings. Air-powered guns are powerful but tie you to a compressor and air hose, limiting your mobility. A battery-powered model gives you the best of both worlds: the high pressure of an air gun and the complete freedom of a manual gun, without the physical strain. You can easily carry it to any piece of equipment on your property without dragging hoses or searching for an outlet.
How do I maintain my battery grease gun to ensure it lasts?
Proper maintenance is simple but essential. After each use, I always wipe down the entire gun to remove any dirt and grease buildup. Make sure to clean the nozzle and coupler to prevent debris from getting into the next fitting. It’s also a good practice to store the gun with a grease cartridge inside to keep the seals lubricated. For long-term storage, refer to your manual, but generally, you should remove the battery and store the gun in a cool, dry place. Avoid letting the gun run completely empty for extended periods, as this can strain the pump.