Manual grease guns can turn routine equipment maintenance into a tiring, time-consuming job. The best cordless grease guns use battery power to deliver consistent pressure while making it easier to reach fittings on tractors, trucks, trailers, and heavy machinery.
This roundup compares 10 popular models across professional and budget-friendly options, including bare tools, complete kits, and grease guns compatible with common 18V and 20V battery platforms.
Best 10 Cordless Grease Guns Picks for 2026
Best High-Pressure Bare Tool
DEWALT 20V MAX Cordless Grease Gun
- 10,000 PSI motor for stubborn fittings
- 42-inch hose and bright LED
- Bare tool for existing DEWALT batteries
Best For: DEWALT 20V MAX users needing controlled, high-pressure greasing
Best Complete Value Package
Seesii 10,000 PSI Electric Grease Gun
- 5.8 oz/min flow and 10,000 PSI
- Lock-on trigger for hands-free work
- Battery and four delivery options included
Best For: Frequent agricultural, fleet, and heavy-equipment maintenance
Best Full Kit for DEWALT Users
- Includes 4.0Ah battery and fast charger
- Up to 16 cartridges per charge
- 10,000 PSI with LED and 42-inch hose
Best For: Buyers wanting a ready-to-use DEWALT maintenance kit
Best Two-Speed Option
Milwaukee M18 2-Speed Grease Gun
- Two-speed operation with 10,000 PSI
- 48-inch hose for difficult fittings
- Preset grease counter and five-year tool warranty
Best For: Milwaukee M18 users wanting controlled, repeatable greasing
Best All-Around Value
Seesii 2-in-1 Electric Grease Gun
- 12,000 PSI with 5.3 oz/min flow
- Two batteries, LED light, and 48-inch hose
- Works with bulk grease or 14 oz cartridges
Best For: Versatile farm, truck, and equipment maintenance
Best Established Tool-Only Pick
- 7.5 oz/min flow with 10,000 PSI
- Durable steel grease tube
- Includes LED light and 30-inch flexible hose
Best For: Existing Ryobi 18V battery owners
Best Heavy-Duty Runtime
Alloyman 2-in-1 Grease Gun Kit
- Two 4.0Ah batteries and 12,000 PSI
- Pistol and straight operating modes
- 600cc bulk capacity with LED light
Best For: Professional farm, fleet, and job-site maintenance
Best Proven Compact Pick
Milwaukee M12 Cordless Grease Gun
- Up to seven cartridges per charge
- Compact 14-inch, 7.2-pound design
- Over 8,000 PSI with 36-inch hose
Best For: Milwaukee M12 users needing a compact grease gun
Best for DeWalt Battery Versatility
- 12,000 PSI with 6 oz/min flow
- Lock-on trigger and rotating handle
- Supports cartridge and bulk grease
Best For: DeWalt 20V users handling frequent maintenance jobs
Best Lightweight High-Flow Option
DeWalt-Compatible 12,000 PSI Grease Gun
- 12,000 PSI and up to 8 oz/min flow
- Lightweight 5.64-pound bare tool
- 39-inch hose and four couplers included
Best For: DeWalt 20V users prioritizing flow and portability
Best High-Pressure Bare Tool – DEWALT 20V MAX Cordless Grease Gun
For shoppers comparing cordless grease guns, the DEWALT DCGG571B is a strong bare-tool option for users who already have compatible DEWALT 20V MAX batteries. Its 10,000 PSI motor, 5.0 oz/min pump, variable-speed trigger, and 42-inch hose suit demanding maintenance work.
Best For: DEWALT 20V MAX users who need high pressure and controlled grease flow without buying another battery and charger.
Pros:
- Up to 10,000 PSI helps work through clogged grease fittings.
- Variable-speed trigger provides control over grease delivery.
- 42-inch hose and LED light improve access and visibility.
- Integrated foot, air-bleeder valve, shoulder strap, and three-year limited warranty add convenience.
Cons:
- Bare-tool configuration does not include a battery or charger.
- At 8 pounds, it may feel substantial during extended overhead work.
This DEWALT is a practical choice when pressure and reach matter most, especially for buyers already invested in the brand’s battery platform.
Best Complete Value Package – Seesii 10,000 PSI Electric Grease Gun
The Seesii is a versatile cordless grease gun for users who want a battery, multiple delivery attachments, and hands-free operation in one package. Its 10,000 PSI output, 5.8 oz/min flow rate, 48-inch hose, and lock-on trigger are suited to frequent equipment maintenance.
Best For: Farmers, fleet mechanics, construction workers, and equipment operators servicing tractors, trailers, trucks, and heavy machinery.
Pros:
- High 5.8 oz/min flow rate and up to 10,000 PSI support faster greasing.
- Lock-on trigger enables continuous, hands-free grease delivery.
- Includes a 48-inch hose, quick-release coupler, needle dispenser, tip nozzle, and flat coupler.
- Includes a 2.0Ah battery rated for up to six 14-ounce cartridges per charge, plus LED lighting.
Cons:
- Battery compatibility is described for Seesii and Makita 18V batteries, not every cordless platform.
- The supplied notes do not specify a warranty period.
With its included battery and broad attachment selection, the Seesii stands out for buyers who want a ready-to-use cordless grease gun for varied maintenance jobs.
Best Full Kit for DEWALT Users – DEWALT 20V MAX Grease Gun Kit
Among cordless grease guns, the DEWALT DCGG571M1 is a convenient complete kit with a 4.0Ah battery, fast charger, shoulder strap, and kit box. It combines 10,000 PSI pressure, a 5.0 oz/min pump, a 42-inch hose, and variable-speed control for routine and heavy-duty servicing.
Best For: Buyers who want a ready-to-use DEWALT grease gun kit with extended battery capacity for multiple greasing jobs.
Pros:
- 4.0Ah battery supports up to 16 cartridges per charge according to the supplied notes.
- 10,000 PSI output and 5.0 oz/min flow handle demanding fittings and high-flow applications.
- Includes battery, fast charger, shoulder strap, and kit box.
- LED light, pump filter screen, integrated foot, and air-bleeder valve improve usability.
Cons:
- At 14.8 pounds, this kit is heavier than the bare-tool DEWALT model.
- Its 42-inch hose is shorter than some competing 48-inch options.
This kit is the better DEWALT choice when you need battery and charging hardware included, particularly for longer maintenance sessions between charges.
Best Two-Speed Option – Milwaukee M18 2-Speed Grease Gun
The Milwaukee 2646-20 is a bare-tool choice for M18 users seeking a two-speed cordless grease gun with long reach. It provides up to 10,000 PSI, a 48-inch flexible hose, an air-bleeder valve, and a preset grease counter dial for more deliberate dispensing.
Best For: Milwaukee M18 users who value two-speed operation, extended hose reach, and a grease counter for repeatable service work.
Pros:
- Two-speed design supports different greasing needs.
- Up to 10,000 PSI operating pressure handles difficult fittings.
- 48-inch flexible hose reaches farther into machinery and vehicles.
- Lock-on/lock-off trigger, air-bleeder valve, and preset grease counter add control and convenience.
Cons:
- Bare-tool format does not include a battery or charger.
- The supplied notes do not list a flow rate or included grease accessories.
For existing Milwaukee M18 owners, this model’s two-speed setup and grease counter make it a compelling option when controlled, repeatable application matters.
Best All-Around Value – Seesii 2-in-1 Electric Grease Gun
For buyers comparing cordless grease guns for automotive, farm, truck, or heavy-equipment maintenance, the Seesii combines high pressure with a fast 5.3 oz/min flow rate. Its two batteries, long hose, LED light, and support for both bulk grease and standard 14 oz cartridges make it a versatile choice for routine and remote service work.
Best For: Farmers, truck owners, and mechanics who want one adaptable cordless grease gun for varied equipment.
Pros:
- 12,000 PSI pressure and 5.3 oz/min flow support faster greasing.
- Includes two 2.0Ah batteries for work away from outlets.
- 48-inch hose and built-in LED light help reach and illuminate tight areas.
- Accepts bulk grease and standard 14 oz cartridges.
Cons:
- At 6.6 pounds, it may feel substantial during extended overhead work.
- The included batteries are 2.0Ah, so runtime may be more limited than with higher-capacity packs.
The Seesii is a well-rounded cordless grease gun when flexibility matters. Its carrying case and hose organizer also make transport and storage easier between jobs.
Best Established Tool-Only Pick – Ryobi P3410 18V Grease Gun
The Ryobi P3410 is a straightforward option among cordless grease guns, delivering 10,000 PSI and a 7.5 oz/min flow rate in a durable tool-only design. It is particularly practical for buyers who already use compatible 18V batteries and do not need a battery or charger included.
Best For: Ryobi 18V users who want a durable cordless grease gun without purchasing another battery platform.
Pros:
- 7.5 oz/min flow rate is faster than the other listed models.
- 10,000 PSI output suits demanding grease fittings.
- Steel grease tube is designed for durability.
- On-board LED light and 30-inch flexible hose improve access in dim or tight spaces.
Cons:
- Tool-only package does not include a battery or charger.
- The 30-inch hose is shorter than those supplied with the other products here.
- At 8.3 pounds, it is relatively heavy for extended use.
The P3410 makes the most sense within an existing Ryobi 18V setup. Its durable construction and higher stated flow rate prioritize efficient shop and equipment maintenance, while the tool-only format can reduce unnecessary duplicate batteries.
Best Heavy-Duty Runtime – Alloyman 2-in-1 Grease Gun Kit
The Alloyman is built for demanding cordless grease gun work, pairing 12,000 PSI pressure and 5.3 oz/min flow with two 4.0Ah batteries. Its pistol and straight modes, 600cc bulk capacity, long hose, and splash- and dust-protection rating suit farmers, mechanics, truckers, and crews servicing equipment outdoors.
Best For: Professional users who need extended battery runtime and flexible operation on farms, fleets, or job sites.
Pros:
- Two 4.0Ah batteries are rated to power up to 12 tractors per full charge.
- 12,000 PSI output and 5.3 oz/min flow support heavy-duty applications.
- Switches between pistol and straight modes for different access requirements.
- Offers a 600cc bulk capacity plus cartridge-loading flexibility.
Cons:
- At 12.78 pounds, it is the heaviest model in this comparison.
- The 39.4-inch hose is shorter than the Seesii’s 48-inch hose.
- Its larger capacity and rugged features may be more than needed for occasional home use.
The Alloyman stands out when minimizing interruptions is more important than keeping weight low. Dual-mode operation, a shoulder strap, and IP54 protection add practical features for extended outdoor maintenance.
Best Proven Compact Pick – Milwaukee M12 Cordless Grease Gun
Milwaukee Bare-Tool Milwaukee 2446-20 M12 12-Volt Cordless Grease Gun (Tool Only, No Battery)
Check Price On AmazonFor buyers comparing cordless grease guns, the Milwaukee 2446-20 is a compact 12V option with over 8,000 PSI of output pressure and enough runtime to dispense up to seven cartridges per charge. It is sold as a bare tool, so the battery and charger must be purchased separately.
Best For: Milwaukee M12 users who want a well-balanced grease gun for routine vehicle, equipment, or machinery lubrication.
Pros:
- Up to seven grease cartridges per charge.
- Compact 14-inch design with a 7.2-pound weight and balanced handle.
- Includes integrated hose storage, LED fuel gauge, air bleeder valve, and a 36-inch flex hose.
Cons:
- Battery and charger are not included.
- Its 12V platform and over-8,000-PSI output may be less powerful than the higher-pressure alternatives here.
- Manufactured in China.
The 2446-20 emphasizes manageable size, useful runtime, and straightforward operation. It is a practical fit if you already use Milwaukee M12 batteries and prefer a proven, compact tool over a larger high-pressure model.
Best for DeWalt Battery Versatility – 2-in-1 12,000 PSI Grease Gun
This cordless grease gun is designed for users who already own DeWalt 20V MAX batteries. Its 12,000-PSI motor, lock-on trigger, rotating handle, and dual-loading capability make it suited to repeated lubrication work in shops, fleets, farms, and construction settings.
Best For: High-volume maintenance where hands-free operation, flexible grip positioning, and compatibility with both cartridge and bulk grease are useful.
Pros:
- Up to 12,000 PSI and a stated 6 oz/min flow rate.
- Lock-on trigger supports continuous, hands-free grease flow.
- Rotating handle, LED work light, 39.4-inch hose, and 90-degree swivel coupler add working flexibility.
- Accepts standard 14-ounce cartridges or 600 cc bulk grease.
Cons:
- Battery and charger are not included.
- Requires a compatible DeWalt 20V MAX battery.
- At 6.8 pounds, it is not the lightest option listed.
The combination of high pressure, a lock-on trigger, and two grip configurations gives this model a strong feature set for demanding service work. It makes the most sense for DeWalt 20V owners who want one tool for both cartridge and bulk loading.
Best Lightweight High-Flow Option – DeWalt-Compatible 12,000 PSI Grease Gun
Among cordless grease guns, this DeWalt-compatible model stands out for its relatively light 5.64-pound weight and stated 8 oz/min flow rate. It combines 12,000 PSI capability with a rotating grip, LED work light, variable-speed trigger, and support for cartridge or bulk grease.
Best For: DeWalt 20V users who want high pressure and faster stated flow in a lighter tool for automotive, agricultural, or industrial lubrication.
Pros:
- 12,000 PSI output with a stated flow rate of up to 8 oz/min.
- Lightest listed weight at 5.64 pounds.
- Dual pistol and in-line grip positions with an integrated LED light.
- Includes a 39-inch hose and four couplers, with cartridge and bulk loading support.
Cons:
- Battery and charger are not included.
- Requires a compatible DeWalt 20V lithium-ion battery.
- The supplied notes do not specify battery runtime.
This model prioritizes portability without giving up the listed 12,000-PSI rating or high flow rate. Its variable-speed trigger and overload protection also provide more control during demanding lubrication tasks, while the included couplers broaden its setup options.
How We Picked These Cordless Grease Guns
We focused on the specifications that matter during real maintenance work: maximum pressure, grease delivery rate, hose length, trigger design, battery compatibility, runtime potential, and overall kit value. We also included both established tool brands and lower-cost alternatives so you can compare platform-specific tools with complete kits that include batteries and chargers.
Maximum PSI is only one part of performance. A useful grease gun should also offer controllable flow, a dependable coupler, a hose long enough to reach awkward fittings, and a grip that remains comfortable during repeated use. Models with LED lights, lock-on triggers, dual-grip designs, or variable-speed controls can provide additional convenience in the field.
Quick Comparison
| What to Compare | Best For | What to Look For |
|---|---|---|
| Battery platform | Existing tool owners | Matching voltage and battery system |
| Pressure rating | Stubborn or high-pressure fittings | Up to 10,000–12,000 PSI, depending on application |
| Flow rate | Frequent servicing | Higher oz/min for faster grease delivery |
| Hose length | Large equipment and tight access | About 39–48 inches for added reach |
| Kit contents | New tool buyers | Battery, charger, carrying accessories, and coupler |
Key Buying Factors for Cordless Grease Guns
Pressure and Flow Rate
Choose a high-pressure model when you service equipment with blocked, hardened, or difficult fittings. Flow rate matters more when you lubricate many fittings in one session. A faster gun can reduce maintenance time, but it may use more grease and battery power.
Battery Compatibility and Runtime
Bare tools are often the best value if you already own batteries from the same platform. DEWALT, Milwaukee, and Ryobi models require their respective battery systems, while compatible aftermarket designs may use a specific brand’s battery format. Check whether the listing includes batteries and a charger before comparing prices.
Hose, Coupler, and Handling
A longer flexible hose helps reach fittings without moving equipment or holding the tool at an awkward angle. Lock-on triggers can reduce hand fatigue, while variable-speed triggers improve control around seals and delicate fittings. A bright LED is useful when servicing machinery in shaded areas or low light.
Capacity and Maintenance
Most models in this group support common grease cartridges, but loading methods can vary. Confirm cartridge size and compatibility before buying. Keep the hose and coupler clean, prevent cross-contamination between grease types, and follow the manufacturer’s charging and storage instructions.
Who Should Buy Which Cordless Grease Guns?
Choose a DEWALT or Milwaukee model if you already use that brand’s batteries, want established tool support, or need a durable shop or field-service tool. DEWALT’s 20V options suit users who prioritize reach and high pressure, while Milwaukee’s M18 model is a strong choice for heavier-duty platform users. The compact M12 option is better where portability matters.
Choose a Ryobi model if you are already invested in the 18V ONE+ system and want a practical tool without adding another battery platform.
Choose a Seesii, Alloyman, or compatible 20V kit if you need a complete package with batteries, a long hose, LED lighting, or a lower upfront cost. Compare included accessories, battery capacity, warranty terms, and user-serviceable parts carefully, since specifications and support can vary.