This guide compares all five selections, explains where each one fits best, and covers battery compatibility, grease loading, pressure, hose handling, maintenance, safety, and common ownership mistakes. The goal is to help you choose confidently for automotive, agricultural, fleet, construction, or general equipment lubrication. When comparing best cordless grease gun, I look at how each option fits a real buying need, where it performs well, and which trade-offs matter.
My first choice is DEWALT DEWALT Grease Gun 20V MAX Cordless Electric Grease Gun. Its LED, integrated foot, and air-bleeder valve also make routine servicing more manageable when fittings are dark, distant, or difficult to prime.
My second choice is Ecarke Ecarke Cordless Grease Gun. Its rotating grip, dual loading system, four couplers, shoulder strap, and hard case create a versatile package for buyers who already own compatible batteries.
My third choice is ZMPZMP ZMPZMP Grease Gun. Choosing the best cordless grease gun means balancing pressure, grease flow, battery compatibility, loading options, hose reach, and the amount of maintenance you expect to handle. A powered gun can save significant time, but the wrong model may leave you buying new batteries, fighting awkward fittings, or carrying more equipment than your work requires.
Below, I compare the selected best cordless grease gun options, explain the strengths and trade-offs of each one, and cover the buying factors plus practical setup, use, compatibility, maintenance, longevity, safety, troubleshooting, storage, and common mistakes that matter before choosing.
Best Cordless Grease Gun
I selected these products by comparing their relevance to powered grease-gun use, pressure and flow information, hose reach, loading flexibility, battery arrangements, included accessories, and available customer-feedback evidence. The ranking also considers practical differences between an established brand, battery-compatible alternatives, and a complete kit that includes batteries.
| # | Image | Product | Price on Amazon |
|---|---|---|---|
| 1 |  |
DEWALT DEWALT Grease Gun 20V MAX Cordless Electric Grease Gun | Check Price |
| 2 |  |
Ecarke Ecarke Cordless Grease Gun | Check Price |
| 3 |  |
ZMPZMP ZMPZMP Grease Gun | Check Price |
| 4 |  |
Alloyman Alloyman 2-in-1 Cordless Grease Gun Kit Upgraded 12000 PSI | Check Price |
| 5 |  |
SXBSXB 2-IN-1 Cordless Grease Gun | Check Price |
DEWALT DEWALT Grease Gun 20V MAX Cordless Electric Grease Gun
The DEWALT 20V MAX cordless electric grease gun is the most balanced choice in this group. Its motor can produce up to 10,000 PSI, giving it the force needed for clogged or stubborn grease fittings, while the high-volume pump can move up to 5.0 oz of grease per minute when speed matters.
Its variable-speed trigger is more useful than a simple on-or-off switch. A light pull allows slower, more controlled grease delivery around smaller fittings, while a firmer pull speeds up routine lubrication. That control can help reduce wasted grease, although it still requires attention because powered delivery can quickly overfill a fitting.
The 42-inch flexible hose is the longest listed hose here, and that extra reach can make a difference under vehicles, around implements, or near machinery guards. An LED helps locate fittings in dark work areas. The integrated foot gives the tool somewhere to rest on a flat surface, and the air-bleeder valve helps prime the pump after changing cartridges.
Pros
- Strong 10,000 PSI output for difficult fittings
- 42-inch hose reaches awkward lubrication points
- Variable-speed trigger improves grease-flow control
- LED, foot design, and air-bleeder valve add practical convenience
Cons
- Tool-only purchase does not include a battery or charger
- Its 5.0 oz/min flow is lower than several newer alternatives
- Buyers outside the DEWALT battery system must account for battery cost
My Opinion
This is the safest all-around recommendation for buyers who value an established platform and practical design more than maximum listed pressure. It suits vehicle owners, equipment operators, and maintenance workers who already use DEWALT 20V batteries. Confirm that the battery and charger are included in your existing collection before ordering, because this listing is a bare tool.
Ecarke Ecarke Cordless Grease Gun
The Ecarke cordless grease gun is aimed at buyers who want high output without leaving the DeWalt 20V battery ecosystem. It accepts listed DCB200, DCB201, DCB203, DCB204, DCB205, and DCB206 lithium-ion batteries, but the battery and charger are not included.
With up to 12,000 PSI and a stated flow rate of 8 oz/min, it has the specifications for demanding work on trucks, loaders, farm equipment, and construction machinery. Higher pressure can help when a fitting resists grease, while faster flow can shorten a large lubrication job. Those numbers also mean it is wise to use the trigger carefully around small fittings and seals.
The rotating handle can switch between a pistol grip and an in-line grip. The pistol position is useful in confined spaces, while the straight arrangement can improve reach and leverage. Ecarke also supports standard 14-ounce cartridges and bulk or drum grease, with compatibility listed for NLGI #0, #1, and #2 grease.
The package is unusually complete for a bare tool. A 90-degree coupler, lock-on coupler, pointed tip coupler, shoulder strap, and hard case cover several common service situations. The trade-off is that more accessories add storage and setup considerations, and the DeWalt battery platform remains an extra cost for new users.
Pros
- 12,000 PSI output and 8 oz/min flow suit heavy-duty service
- Rotating handle supports pistol and in-line grip positions
- Accepts cartridge and bulk grease
- Includes four useful coupler options, a strap, and hard case
Cons
- Battery and charger are not included
- Higher output demands careful trigger control
- Platform compatibility is limited to listed DeWalt-style batteries
My Opinion
Ecarke is a strong alternative for a buyer who already has compatible DeWalt batteries and wants more pressure and flow than the DEWALT selection provides on paper. Its accessories make it attractive for varied equipment, but new users should price in a suitable battery and charger before deciding that it is the better value.
ZMPZMP ZMPZMP Grease Gun
The ZMPZMP 20V cordless grease gun shares several useful characteristics with the Ecarke option, including compatibility with listed DeWalt 20V batteries, a 12,000 PSI maximum, and an 8 oz/min flow rate. It is sold as a bare tool, so a compatible battery must be available before the first job.
Its strongest practical feature is the pressure-sensitive variable-speed trigger. Light pressure supports slower, more precise application, while pressing deeper increases output for larger fittings or faster routine servicing. This is helpful for beginners who are still learning how much grease a particular joint needs, though no trigger can replace checking the fitting and equipment manual.
The rotating handle can be configured as a pistol grip or an in-line grip. That flexibility helps when the same tool must reach narrow engine bays, undercarriages, tractor components, or machinery with obstructed access. A built-in LED illuminates dark spaces, and the 39-inch hose extends the working area without requiring the entire tool to sit beside the fitting.
ZMPZMP also supports standard 14-ounce cartridges and bulk grease, with NLGI #0, #1, and #2 compatibility listed. Its reinforced steel barrel and T-handle plunger are intended to simplify loading. Overload protection adds a useful safeguard during demanding jobs, although operators should still stop and investigate a blocked fitting rather than repeatedly forcing the motor.
Pros
- 12,000 PSI pressure and 8 oz/min flow support demanding maintenance
- Variable-speed trigger provides useful delivery control
- Overload protection helps during difficult applications
- Rotating handle, LED, and 39-inch hose improve access
Cons
- Battery and charger must be purchased separately
- Customer-feedback volume is much smaller than DEWALT’s listed total
- Compatible battery models should be confirmed before purchase
My Opinion
This is a compelling feature-for-money choice when trigger control and overload protection matter more than buying from the best-known brand in the group. The smaller customer-feedback sample makes the ownership track record less established than DEWALT’s, so I would choose it primarily when its DeWalt-battery compatibility and flexible grip design match your equipment.
Alloyman Alloyman 2-in-1 Cordless Grease Gun Kit Upgraded 12000 PSI
The Alloyman 2-in-1 cordless grease gun kit stands apart because it includes two 4.0Ah batteries rather than requiring a separate battery purchase. For a buyer starting without a compatible cordless-tool platform, that can make the package more immediately usable and reduce interruptions during a long outdoor service day.
Its motor is rated up to 12 000 PSI with a stated flow of 5 3 oz min That combination favors pressure-heavy work while remaining closer to moderate flow than the fastest models in this comparison Alloyman describes the kit as capable of handling routine bearings as well as agricultural equipment but actual runtime will depend on grease resistance temperature fitting condition and how continuously the trigger is.
A one-button change between pistol and straight modes helps adapt the tool to tight spaces or longer reaches. The 39.4-inch flexible hose and built-in LED are useful around undercarriages and engine bays. A shoulder strap may reduce arm fatigue, while IP54 splash and dust protection adds sensible jobsite context; it does not mean the tool should be submerged or deliberately exposed to heavy water.
The loading system accepts 600 cc, or 20-ounce, bulk grease and 114-ounce cartridges listed at 53 mm diameter. Because cartridge dimensions can vary, confirm that your preferred grease container matches those stated measurements. A 365-day warranty and responsive support are also listed, giving new buyers an additional ownership consideration.
Pros
- Includes two 4.0Ah batteries for immediate operation
- 12,000 PSI output handles demanding lubrication work
- Dual grip modes, long hose, LED, and shoulder strap improve usability
- Supports bulk grease and listed large-capacity cartridges
Cons
- 5.3 oz/min flow is below the fastest listed models
- Larger grease capacity may add weight during extended use
- Specified cartridge dimensions require compatibility checking
My Opinion
Alloyman is the most convenient package for someone who needs a working kit rather than a bare tool. The two batteries are its biggest advantage, especially for farm or fleet work away from a charger. It makes the most sense when included runtime and bulk capacity outweigh the appeal of a more established battery ecosystem.
SXBSXB 2-IN-1 Cordless Grease Gun
The SXBSXB 2-in-1 cordless grease gun is a bare tool for DeWalt 20V batteries and focuses on convenience during repeated lubrication work. Listed compatible packs include DCB200, DCB201, DCB203, DCB204, and DCB206, while the battery and charger must be supplied separately.
Its lock-on trigger is the defining feature. A normal press allows short, controlled applications, while the lock-on function can maintain continuous flow when servicing multiple fittings. That can reduce hand fatigue during fleet, farm, or construction maintenance, but it also makes it especially important to release the lock-on function promptly and monitor grease output.
The tool is rated at up to 12,000 PSI and 6 oz/min. That gives it a useful middle ground: more pressure than the DEWALT model and a faster stated flow than Alloyman, without reaching the 8 oz/min claims of Ecarke and ZMPZMP. The 39.4-inch hose and included 90-degree swivel coupler should help with confined fittings and awkward approach angles.
Its rotating handle switches between pistol and straight configurations, and the LED helps illuminate dark service locations. Cartridge and bulk loading support includes standard 14-ounce cartridges, 600 cc bulk grease, and NLGI #0 through #2 grease. As with the other DeWalt-compatible options, this is not automatically compatible with every battery pack, so checking the listed model family is part of setup.
Pros
- Lock-on trigger can reduce hand fatigue during repeated jobs
- 12,000 PSI output and 6 oz/min flow suit general heavy equipment use
- Rotating grip, LED, and 39.4-inch hose improve access
- Supports cartridge and bulk grease loading
Cons
- Battery and charger are not included
- Lock-on operation requires careful monitoring to prevent over-greasing
- Available customer-feedback volume is limited
My Opinion
SXBSXB is worth considering when continuous trigger operation is more important than having a complete battery kit. It offers a practical specification balance and useful access features, but it is a better fit for buyers who already own the right DeWalt batteries and understand how to control powered grease delivery.
How I Selected These Best Cordless Grease Gun Options
The selection centers on the tasks people normally expect from a cordless grease gun: overcoming resistant fittings, delivering grease efficiently, reaching recessed service points, and operating without unnecessary manual pumping. I compared stated pressure, flow, hose length, grip arrangements, grease-loading methods, battery requirements, included accessories, and protection or support details where supplied.
Customer-feedback volume and rating information also helped provide context, but those figures do not replace compatibility checks or careful use. DEWALT has the largest listed feedback sample at 6,372 ratings and a 4.8 rating, while the other listings have smaller samples. I treated those numbers as one signal rather than proof of identical long-term performance in every application.
Important selection takeaway: maximum PSI is not the only measure of usefulness. A controllable trigger, a hose that reaches the fitting, the correct coupler, and a battery you can actually use may matter more than the highest number on the box.
Brand diversity was also practical here. The list includes an established DEWALT platform tool, several DeWalt-battery-compatible alternatives, and an Alloyman kit with batteries included. That gives buyers different paths depending on whether they already own cordless tools or are building a maintenance setup from scratch.
How to Choose the Best Cordless Grease Gun
When comparing the best cordless grease gun for your work, start with the equipment you service and the battery platform you already own. Then consider how often you grease, whether fittings are clogged or merely routine, and whether cartridges or bulk grease are more convenient for your workflow.
- Choose pressure and flow based on fitting resistance and job volume, not pressure alone.
- Confirm battery, charger, cartridge, and grease-type compatibility before ordering.
- Prioritize hose reach and coupler access for recessed or obstructed fittings.
- Look for trigger control or lock-on operation according to your workload.
- Consider a complete battery kit if you do not already own a compatible platform.
Pressure versus flow rate
Pressure describes the tool’s ability to push grease against resistance, while flow rate describes how quickly grease exits when the tool is running. A high-pressure gun can help with hardened or blocked fittings, but a fast-flow model may save more time when many accessible fittings need routine service.
Neither number guarantees that a fitting will accept grease. A blocked passage, damaged coupler, hardened grease, or failed bearing may require diagnosis rather than more trigger time. Stop if grease escapes around the fitting or the tool strains continuously.
Battery platform and runtime
Battery compatibility can determine the real cost of a bare tool. The Ecarke, ZMPZMP, and SXBSXB products list compatibility with specific DeWalt 20V battery models, but the batteries and chargers are not included. Alloyman includes two 4.0Ah batteries, while the DEWALT product is also listed as tool only.
Runtime varies with pressure, grease temperature, fitting condition, trigger use, and battery capacity. If your work takes place far from power, two batteries or a spare charged pack can be more valuable than a slightly higher flow specification.
Hose length and coupler choice
A longer hose lets you leave the motor in a stable position while guiding the end to a fitting. The listed lengths range from 39 to 42 inches, which should cover many undercarriage and equipment applications. A 90-degree coupler is useful around corners, while a lock-on coupler can free one hand when the fitting and coupler align properly.
Couplers are not universal solutions. If a fitting is damaged, dirty, or badly angled, forcing the connection can cause leakage or damage. Clean the fitting first and use the least awkward approach angle available.
Battery and Grease Compatibility Before Setup
Before using any model, read the battery and grease information supplied with that product. DeWalt-battery-compatible tools are intended for listed 20V lithium-ion packs, not necessarily every battery that happens to share a similar shape. Inspect the pack for damage and ensure it locks securely into the tool.
Grease consistency matters as well. The Ecarke, ZMPZMP, and SXBSXB listings specify NLGI #0, #1, and #2 compatibility, while cartridge and bulk capacity varies by model. Do not casually mix incompatible greases, especially when servicing equipment with a specified lubricant.
Cartridge loading
- Remove the old cartridge and wipe grease from the barrel and plunger area.
- Check the new cartridge for the correct size and remove its pull tab and seal as directed.
- Insert the cartridge without forcing the plunger or damaging the opening.
- Reassemble the barrel firmly, then prime the pump before applying grease.
Bulk loading
Bulk grease can reduce packaging waste and suit high-volume maintenance, but it must enter the barrel cleanly. Dirt introduced during bulk loading can reach the pump or fitting. Use a clean transfer method, keep the container covered, and follow the tool’s loading instructions rather than overfilling the barrel.
First-Time Setup and Effective Use
Start by charging the battery, attaching the barrel correctly, and checking that the hose and coupler are secure. If the pump does not deliver grease after a cartridge change, use the air-bleeder valve when provided or follow the product’s priming procedure. Running the motor repeatedly without grease can waste battery power and increase wear.
Clean each fitting before connecting the coupler. Seat the coupler straight, then use the trigger briefly while watching the joint. A variable-speed trigger is useful for controlled application; with a lock-on trigger, remain beside the fitting and release the control as soon as the lubrication task is complete.
How much grease to apply
There is no universal number of trigger seconds for every bearing or joint. Follow the equipment manufacturer’s lubrication schedule and watch for the condition of the seal or the appearance of fresh grease where appropriate. More grease is not automatically better; over-greasing can damage seals, create heat, or contaminate nearby components.
Maintenance and Cleaning
Wipe the hose, coupler, barrel, and exterior after each job. Keeping the tool clean makes leaks easier to spot and prevents abrasive dirt from reaching fittings. Pay particular attention to the coupler jaws and the end of the hose, where old grease can collect.
Inspect the hose for cuts, swelling, kinks, or loose connections. Replace damaged components instead of wrapping them temporarily and continuing to work under pressure. Also check the barrel seal, plunger, battery contacts, and trigger area for contamination.
Do not immerse the tool. Alloyman lists IP54 splash and dust protection, but that rating does not make it waterproof. Store every model in a dry location, remove the battery for storage, and keep cartridges or bulk grease sealed against dust and temperature extremes.
Storage and Ownership Tips
Keep the grease gun upright or in its case when practical so the hose and coupler are not crushed. The Ecarke package includes a hard case, while other models may require a separate storage solution. A case also helps keep spare couplers, batteries, and clean rags together.
Label partially used grease cartridges and bulk containers with the grease type. Avoid leaving the hose pressurized for long periods, and release the coupler carefully after use. If a battery will sit unused for an extended period, store it according to the battery maker’s guidance rather than leaving it fully depleted in the tool.
Common Mistakes to Avoid
Most cordless grease-gun problems come from incorrect preparation or excessive force rather than a lack of advertised power. A few habits can prevent messy, unsafe, or ineffective lubrication.
- Do not assume a DeWalt-compatible tool includes a battery or charger.
- Do not mix grease types without confirming compatibility.
- Do not keep pressing the trigger against a blocked fitting indefinitely.
- Do not use a damaged hose or loose coupler under pressure.
- Do not over-grease simply because the tool delivers grease quickly.
- Do not ignore the listed cartridge diameter or bulk-capacity limit.
- Do not store the tool wet, dirty, or with an unprotected coupler.
Stop and investigate when grease will not enter normally. Excessive pressure can damage a fitting, force grease past a seal, or hide an underlying mechanical problem.
Troubleshooting Weak or Missing Grease Flow
If the motor runs but grease does not move, first check whether the barrel is loaded correctly and whether the pump has been primed. An air pocket after a cartridge change is a common possibility. Also inspect the coupler connection and confirm that the fitting itself is not blocked.
Slow output may result from cold or overly stiff grease, a nearly empty cartridge, a kinked hose, or a low battery. Move the tool to a suitable working temperature, replace or reload the grease correctly, straighten the hose, and charge the battery before assuming the motor has failed.
If the motor repeatedly strains, stops, or activates overload protection, do not keep forcing it. Disconnect the battery before inspecting the hose, barrel, and fitting. Persistent resistance should be handled as an equipment-maintenance issue rather than solved with longer trigger operation.
FAQS About Best Cordless Grease Gun
What is the best cordless grease gun for most buyers?
The DEWALT 20V MAX Cordless Electric Grease Gun is the strongest overall choice in this selection because it combines a 10,000 PSI motor, a 42-inch hose, variable-speed control, LED lighting, an integrated foot, and an air-bleeder valve. It is especially sensible for buyers already using DEWALT 20V batteries.
Which cordless grease gun has the highest listed pressure?
Ecarke, ZMPZMP, Alloyman, and SXBSXB each list up to 12,000 PSI. Pressure should still be considered alongside flow control, hose reach, coupler design, battery access, and the type of fittings you service.
Do these cordless grease guns include batteries?
DEWALT, Ecarke, ZMPZMP, and SXBSXB are listed as tool-only products. Alloyman includes two 4.0Ah batteries. Always confirm the package contents before purchase, particularly when comparing the price of a bare tool with a complete kit.
Can these cordless grease guns use bulk grease?
Ecarke, ZMPZMP, Alloyman, and SXBSXB list bulk-grease support. Their capacities and loading details differ, so check the stated barrel size and grease compatibility. Bulk loading should be done carefully to keep dirt and air out of the pump.
Is a 12,000 PSI grease gun better than a 10,000 PSI model?
Not automatically. A 12,000 PSI model may provide more force for resistant fittings, but the DEWALT model offers a longer hose, variable-speed control, and practical priming assistance. The better choice depends on access, battery platform, grease volume, and control requirements.
How long should the hose be on a cordless grease gun?
A hose around 39 to 42 inches can provide useful reach around vehicles, tractors, and machinery. Longer is not always better if it becomes difficult to manage, but extra reach can keep the tool away from cramped or dirty service points.
Final Thoughts
The best cordless grease gun for most buyers is the DEWALT 20V MAX Cordless Electric Grease Gun because of its balanced design and established battery platform. Ecarke is the stronger alternative for higher stated flow and included accessories, while ZMPZMP is a capable third choice with variable-speed control and overload protection. Buyers without compatible batteries should also give Alloyman’s complete two-battery kit serious consideration.