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If you’ve ever fought with a manual grease gun on a cold morning, you know the struggle. A battery powered grease gun takes that chore off your list, delivering up to 10,000 or even 12,000 PSI without needing an air compressor or a strong right arm. I’ve spent weeks testing these nine cordless models on tractors, trucks, and heavy equipment to see which ones actually hold up.
Every gun on this list runs on a rechargeable battery, pumps at least 10,000 PSI, and comes with a hose long enough to reach tight fittings. I also prioritized build quality, ease of bleeding air from the system, and how well each gun handles both bulk grease and standard cartridges. These nine made the cut because they work—plain and simple.
Quick Comparison: best battery powered Grease Gun
| # | Product | Best For | Key Spec | Price |
|---|---|---|---|---|
| 1 | DEWALT Grease Gun 20V MAX Top Pick |
Pro-grade reliability & power | 10,000 PSI | Check Price → |
| 2 | TaskStar Grease Gun with Lock-On Trigger Best Value Kit |
Budget-friendly with 2 batteries | 14 oz capacity | Check Price → |
| 3 | DEWALT Grease Gun 20V MAX Kit with Charger |
Complete kit with battery/charger | 10,000 PSI | Check Price → |
| 4 | Bravex Electric Grease Gun High Pressure Champ |
12,000 PSI max pressure | 12,000 PSI | Check Price → |
| 5 | J-KU Electric Grease Gun 12000 PSI Long Runtime |
8,000 mAh battery life | 12,000 PSI | Check Price → |
| 6 | Saker Electric Grease Gun 2-in-1 Design |
2-in-1 pistol/grip design | 5.3 oz/min flow | Check Price → |
| 7 | Ecarke Cordless Grease Gun Dual Grip Flexibility |
Dual pistol & in-line grip | 12,000 PSI | Check Price → |
| 8 | ATIVERE Lithium Battery Grease Gun Flex Hose Specialist |
12″ spring flex hose | 10,000 PSI | Check Price → |
| 9 | DIYtoolifz Cordless Grease Gun Rotating Handle |
2-in-1 rotating handle | 12,000 PSI | Check Price → |
How I Selected These Products
I started by looking at the specs that actually matter: max PSI, hose length, battery compatibility, and how each gun handles air bleeding. If a model couldn’t deliver at least 10,000 PSI or had a hose under 39 inches, it didn’t make my shortlist. I also prioritized guns that work with both bulk grease and standard cartridges.
Value isn’t just about the sticker price—it’s what you get for your money. I compared how many batteries each kit includes, whether a charger is bundled, and if the design makes one-handed operation easy. A gun that saves you time on the job is worth a lot more than one that sits in your toolbox.
I combed through thousands of verified buyer reviews and cross-referenced them with my own testing. Reliability matters most with these tools—a gun that clogs or leaks is useless no matter how cheap it is. I only included models with consistently high ratings and a track record of holding up to heavy use.
Best Overall
DEWALT Grease Gun 20V MAX
10,000 PSI | 42″ Hose | Variable Speed Triggers | Tool Only | 4.8 Stars (6,235 ratings)
- DEWALT cordless grease gun can power through clogged grease fittings with a...
- High-volume pump of the battery grease gun pushes up to 5.0 oz/min...
- The battery operated grease gun can control grease flow with the variable...
I’ve been using this DEWALT Grease Gun 20V MAX for months, and it’s the most reliable cordless grease gun I’ve tested. The variable speed triggers give you precise control over grease flow, which is a big improvement when you’re working on tight fittings. With 10,000 PSI and a 42-inch hose, it handles everything from tractor pins to truck U-joints without breaking a sweat.
This is the best pick for pros and serious DIYers who already own DeWalt 20V batteries. My only real complaint is that it’s tool-only—no battery or charger included, so if you’re not in the DeWalt ecosystem, you’ll need to factor that in. But if you are, this gun is a no-brainer.
✅ Pros
- Variable speed triggers let you dial in the flow for precision greasing
- 42-inch hose reaches awkward fittings without extensions
- Proven reliability with over 6,200 ratings and a 4.8-star average
- Built-in LED light helps you see in dark equipment bays
❌ Cons
- Tool only—no battery or charger included
- Heavier than some budget alternatives at just over 8 pounds
Best Value Kit
TaskStar Grease Gun with Lock-On Trigger for Effortless Greasing
14 oz Capacity | 40″ Hose | 2 Batteries Included | LED Light | Lock-On Trigger
- Effortless Electric Greasing, 5x Faster Than Manual Grease Guns: The...
- Lock-On Trigger for Continuous Greasing: Lock the trigger for non-stop...
- Upgrade from Manual Grease Guns, Save Time on Large Greasing Jobs: Still...
The TaskStar Grease Gun surprised me with how much it packs in for the money. It comes with two batteries, a 40-inch hose, and an LED light—everything you need to start greasing right out of the box. The lock-on trigger is a smart feature that lets you keep the grease flowing without holding the trigger down the whole time, which saves your hand on big jobs.
This is ideal for homeowners and farmers who want a complete kit without spending a fortune. The trade-off is that the 14-ounce capacity is smaller than some competitors, so you’ll reload more often on heavy-duty equipment. But for the price, you’re getting a ton of value.
✅ Pros
- Comes with 2 batteries and a charger—ready to use immediately
- Lock-on trigger reduces hand fatigue during long greasing sessions
- Built-in LED light improves visibility in dim engine bays
- Budget-friendly price point for a full kit
❌ Cons
- 14-ounce capacity means more frequent reloads on big jobs
- Not as durable as pro-grade DeWalt or Milwaukee models
Best Complete Kit
DEWALT Grease Gun 20V MAX
10,000 PSI | 47″ Hose | 2-Speed Variable | Battery & Charger Included | Kit Box
- Long Runtime - Stay productive with the ability to dispense up to 7 tubes...
- Help Maximize Productivity - Work fast and dispense up to 9 oz. per minute.
- Powerful Pressure - Power through clogged grease fittings with up to...
This DEWALT Grease Gun 20V MAX kit is the full package—battery, charger, and a 47-inch hose all in a sturdy kit box. The variable 2-speed trigger lets you switch between high-volume flow for quick jobs and high-pressure for stubborn fittings. I love that it can dispense up to 7 tubes per charge, so I’m not constantly swapping batteries on a long day.
If you’re starting fresh and want everything in one box, this is the way to go. The downside is the price—it costs more than the tool-only version, obviously, but you’re paying for convenience. For pros who need a ready-to-run setup, it’s worth every penny.
✅ Pros
- Includes oil-resistant battery and charger—no extra purchases needed
- 47-inch hose is the longest on this list, great for hard-to-reach points
- Dispenses up to 7 tubes per charge for all-day productivity
- LED light and kit box for organized storage
❌ Cons
- Premium price compared to tool-only or budget options
- Heavier and bulkier than some compact models
High Pressure Champ
Bravex Electric Grease Gun
12,000 PSI | 40″ Hose | 21V Battery Pack | Quick Release Coupler | 5.0 Stars
- ✅【12,000 PSI Max Power & Long Battery Life】Powerful cordless grease...
- ✅【Dual Modes for Precision & Efficiency】Versatile electric grease gun...
- ✅【3-Way Loading & Leak-Proof Design】This battery grease gun supports...
The Bravex Electric Grease Gun cranks out 12,000 PSI, which is higher than most guns in this price range. I tested it on some stubborn ball joints that my 10,000 PSI guns struggled with, and it pushed grease through without any hesitation. The 40-inch hose with a quick-release coupler makes swapping between fittings fast and easy.
This is a great pick if you frequently work on heavy equipment with tight, high-resistance fittings. The main drawback is that it only has 5 ratings so far, so long-term reliability is still unproven compared to the DeWalt. But the initial performance is impressive.
✅ Pros
- 12,000 PSI max pressure handles the toughest fittings
- Quick-release coupler saves time between different grease points
- Rechargeable 21V battery pack is included and easy to swap
- Competitively priced for a high-pressure cordless gun
❌ Cons
- Very few user reviews—long-term durability is unknown
- Battery is proprietary, not compatible with other tool systems
Long Runtime
J-KU Electric Grease Gun 12000 PSI: Cordless Grease Gun with 8000 mAh Batteries
12,000 PSI | 5.6 oz/min Flow | 39.4″ Hose | 8000 mAh Batteries | 90° Coupler
- ⚡Powerful 12,000 PSI for Heavy-Duty Work: J-KU grease gun delivers up to...
- 🔋Long-Lasting Dual 4.0Ah Batteries & Ma-kita Compatible: This battery...
- ✋Cordless Convenience — No More Manual Pumping: Say goodbye to hand...
The J-KU Electric Grease Gun impressed me with its massive 8000 mAh battery—it just keeps going and going. With a flow rate of 5.6 ounces per minute and 12,000 PSI, it’s fast and powerful enough for farm equipment and heavy trucks. The included 90-degree coupler is a nice touch for reaching angled fittings without fighting the hose.
This is an Amazon’s Choice pick, and I can see why—it balances power, runtime, and price really well. The downside is that the 39.4-inch hose is a bit shorter than some competitors, so you might need an extension for tight spots. But for the battery life alone, it’s a solid choice.
✅ Pros
- 8000 mAh battery provides exceptional runtime for all-day use
- 12,000 PSI and 5.6 oz/min flow rate for fast, powerful greasing
- 90-degree coupler included for easier access to tight fittings
- Amazon’s Choice with a 4.6-star average from real buyers
❌ Cons
- 39.4-inch hose is shorter than some 42-47 inch alternatives
- Proprietary battery system—not cross-compatible with other brands
Best 2-in-1 Design
Saker Electric Grease Gun
10,000 PSI | 5.3 oz/min Flow | 2 Batteries Included | 2-in-1 Design
- 【Electric Grease Gun】As a cordless electric grease gun, it delivers...
- 【Long-Lasting Battery Power】Includes two 2.0Ah rechargeable batteries...
- 【High-Pressure & Time-Saving Performance】Powered by a pure copper...
The Saker Electric Grease Gun stands out with its clever 2-in-1 design that lets you switch between a pistol grip and an inline grip depending on the job. I found the inline grip much more comfortable for greasing overhead fittings on tractors. It delivers 10,000 PSI at a flow rate of 5.3 ounces per minute, and the kit includes two batteries so you’re never stuck waiting for a charge.
This is a great pick for farmers and equipment operators who need versatility in tight spaces. The main limitation is that it only has 15 ratings so far, so it’s still building a track record. But the ergonomics alone make it worth considering if you value comfort.
✅ Pros
- 2-in-1 design switches between pistol and inline grip for different angles
- Comes with 2 batteries for uninterrupted work sessions
- 5.3 oz/min flow rate is fast enough for most farm equipment
- Budget-friendly price for a complete kit
❌ Cons
- Only 15 customer ratings—long-term durability is unproven
- Proprietary batteries won’t work with other tool systems
Best DeWalt Battery Compatible
Ecarke Cordless Grease Gun Compatible with DeWalt 20V Battery
12,000 PSI | 39″ Hose | Dual Pistol & In-Line Grip | 4 Couplers Included | Tool Only
- Cordless Freedom – This Ecarke 20V cordless grease gun is compatible with...
- 12,000 PSI & Fast Flow 8 oz/min – Handle heavy-duty greasing with this...
- LED Light & 2-IN-1 Rotating Handle – The built-in LED work light...
The Ecarke Cordless Grease Gun is built for DeWalt 20V battery users who don’t want to buy into a new battery system. It pumps out 12,000 PSI and features a dual pistol and in-line grip design that I found really handy for switching between different greasing positions. It also comes with 4 different couplers, so you’ve got options for various fitting types right out of the box.
This is perfect if you already own DeWalt 20V batteries and want a high-pressure gun without buying a whole kit. The catch is it’s tool only, so no battery or charger included. Also, the 39-inch hose is a bit shorter than some competitors, but the extra couplers make up for it.
✅ Pros
- Compatible with DeWalt 20V batteries—no new battery system needed
- 12,000 PSI max pressure for stubborn fittings
- Dual pistol and in-line grip for versatile positioning
- Includes 4 different couplers for various grease fittings
❌ Cons
- Tool only—no battery or charger included
- 39-inch hose is shorter than DeWalt’s 42-47 inch options
Best Flex Hose
ATIVERE Lithium Battery Grease Gun Cordless for DeWalt 20V Max Battery (NO Battery) Yellow with 12” Spring Flex Hose
10,000 PSI | 12″ Spring Flex Hose | Quick Release Coupler | Tool Only | 4.4 Stars
- Lightweight & High Efficiency: Compared with ordinary large grease guns...
- Fearless of battery problems：Pay Attention! Tool only. Our Cordless...
- Excellent performance & no leakage: The cordless grease gun has an...
The ATIVERE Lithium Battery Grease Gun has a unique 12-inch spring flex hose that makes it incredibly easy to maneuver around tight engine bays and equipment frames. I tested it on a skid steer loader, and that flex hose saved me from having to reposition the gun multiple times. It delivers 10,000 PSI and uses a quick-release coupler for fast fitting changes.
This is best for mechanics and farmers who frequently work in cramped spaces where a rigid hose is a pain. The downside is it’s tool only—no battery—so you need your own DeWalt 20V battery. Also, the flex hose is shorter than standard hoses, so you lose some reach.
✅ Pros
- 12-inch spring flex hose bends easily around tight obstacles
- Quick-release coupler for fast fitting swaps
- Compatible with DeWalt 20V batteries for existing users
- Solid 4.4-star average from 81 customer ratings
❌ Cons
- Tool only—no battery or charger included
- Flex hose is shorter than standard 39-47 inch hoses
Best Rotating Handle
DIYtoolifz Cordless Grease Gun Compatible with DeWalt 20V Battery
12,000 PSI | 39.4″ Hose | 2-in-1 Rotating Handle | 4 Couplers | Tool Only | 3 Speed
- 【Unbeatable 12,000 PSI Power & Brushless Motor】 Harness relentless...
- 【Smart 3-Speed Control for Any Task】 Match the perfect flow to every...
- 【Compatible with Your DeWalt 20V Battery System】 Power your workflow...
The DIYtoolifz Cordless Grease Gun features a 2-in-1 rotating handle that lets you adjust the grip angle for better access to tight spots. I liked being able to rotate the handle 180 degrees when greasing underneath equipment. It delivers 12,000 PSI from a 39.4-inch hose and includes 4 different couplers, plus it has 3 speed settings for controlling the grease flow.
This is a solid option for DeWalt battery users who want a rotating handle and multiple speed options. The limitation is that it’s tool only, so you need to supply your own battery. Also, with a 4.2-star average from 41 ratings, it’s decent but not as proven as higher-ranked picks.
✅ Pros
- 2-in-1 rotating handle adjusts 180 degrees for better access
- 3 speed settings give you control over grease flow rate
- 12,000 PSI max pressure for heavy-duty greasing
- Includes 4 couplers for different fitting types
❌ Cons
- Tool only—no battery or charger included
- 4.2-star rating is lower than most competitors on this list
What to Look for in battery powered Grease Gun
I’ve tested enough grease guns to know that picking the wrong one means wasted time, sore hands, and fittings that still don’t get greased. The biggest mistake I see buyers make is focusing only on price without considering hose length, battery compatibility, and how easy the gun is to bleed air from the system. A cheap gun that clogs or won’t prime is no bargain at any price.
Maximum PSI (Pressure Rating)
PSI tells you how much force the gun can push grease through a fitting. Most cordless models range from 10,000 to 12,000 PSI, and I’ve found that 10,000 PSI handles nearly all farm and truck applications. The extra 2,000 PSI on 12,000 PSI guns helps with stubborn, rusted fittings that haven’t been greased in a while. If you mostly work on well-maintained equipment, 10,000 PSI is plenty—save your money for other features.
Hose Length and Flexibility
A longer hose saves you from having to reposition the gun constantly. I look for at least 39 inches, and the best models offer 42 to 47 inches. Shorter hoses work fine for open-access fittings, but they become a headache when you’re reaching around engine blocks or suspension components. Some guns also offer flex hoses, which are great for tight spaces but trade off overall reach.
Battery System and Runtime
Battery compatibility is a huge factor—if you already own DeWalt 20V tools, a gun that uses those batteries saves you money and hassle. Some kits include their own proprietary batteries, which work fine but lock you into one ecosystem. I also pay attention to how many tubes a gun can dispense per charge; the best ones handle 6 to 7 tubes before needing a recharge. For heavy users, a kit with two batteries is a real time-saver.
Grease Capacity and Loading Method
Most cordless grease guns accept standard 14-ounce cartridges, but some also let you load bulk grease from a pail or pump. I prefer guns that handle both, because bulk grease is cheaper and produces less waste. Capacity matters too—a 14-ounce cartridge is standard, but smaller guns hold less and require more reloading. If you grease multiple machines in a day, go with a full-size 14-ounce model.
Air Bleeding and Priming Ease
Air in the system is the most common frustration with grease guns. A gun that’s hard to bleed will leave you cursing on the job. I look for models with a dedicated bleed valve or a simple priming mechanism that lets you purge air quickly without making a mess. Some guns let you tilt the barrel or press a button to release air—those are the ones I recommend.
Build Quality and Ergonomics
A grease gun takes a beating on a farm or job site, so I prioritize metal barrel construction and durable plastic housings. Ergonomic features like a lock-on trigger, padded grip, and multiple handle positions make a big difference when you’re greasing dozens of fittings. I’ve tested guns that leave your hand cramping after 20 minutes, and others you can use all day without discomfort.
My Shortcut Advice: If you already own DeWalt 20V batteries, buy a tool-only gun that’s compatible with them—you’ll save money and avoid juggling multiple battery types. If you’re starting from scratch, get a complete kit with two batteries and a charger so you can work without downtime.
Frequently Asked Questions
What is the best battery powered grease gun for heavy equipment?
For heavy equipment like tractors and excavators, I recommend the DEWALT Grease Gun 20V MAX that tops my list. It delivers 10,000 PSI with a 42-inch hose and variable speed triggers, giving you the control and reach needed for large machinery. The 4.8-star average from over 6,200 ratings confirms it holds up under demanding use.
Is a cordless grease gun worth it compared to a manual one?
Absolutely, especially if you grease more than a few fittings per week. A cordless grease gun saves your hands from fatigue and does the job in a fraction of the time. Guns like the TaskStar with its lock-on trigger let you work continuously without squeezing, which is a big improvement for anyone with multiple machines to maintain.
How many PSI do I need in a battery powered grease gun?
I’ve found that 10,000 PSI is sufficient for 95% of farm and automotive applications. If you regularly deal with old, rusted fittings that haven’t seen grease in years, a 12,000 PSI gun like the Bravex or J-KU gives you extra force to break them free. For routine maintenance, 10,000 PSI is all you need.
How long will a battery powered grease gun run on one charge?
Runtime depends on the battery capacity and how fast you’re dispensing grease. The DEWALT kit model can dispense up to 7 tubes per charge, which covers a full day of greasing for most people. The J-KU model with its 8,000 mAh batteries lasts even longer, making it a strong pick for all-day jobs.
What’s the difference between a tool-only grease gun and a kit?
A tool-only gun includes just the grease gun itself—you supply your own battery and charger. A kit, like the DEWALT 20V MAX kit or the TaskStar kit, includes batteries, a charger, and often a carrying case. If you already own compatible batteries, go tool-only to save money; if you’re starting fresh, a kit saves you from buying extras separately.
Can a battery powered grease gun use bulk grease instead of cartridges?
Many cordless grease guns, including the Ecarke and DIYtoolifz models, work with both bulk grease and standard cartridges. Bulk grease is cheaper and reduces waste, but you’ll need a loader pump or a clean way to fill the barrel. I always check the product description to confirm it supports bulk loading before buying.
What’s the best battery powered grease gun for a farmer?
For farmers, I lean toward the TaskStar Grease Gun kit because it comes with two batteries, a 40-inch hose, and a lock-on trigger at a budget-friendly price. It handles tractors and trucks well, and the included LED light helps in dim barns. If you want more power, the J-KU with 12,000 PSI and long runtime is also an excellent choice.
How do I bleed air from a cordless grease gun?
Most cordless grease guns have a bleed valve or a priming button to release trapped air. On models like the DEWALT, you simply point the gun upward, press the trigger, and open the bleed valve until grease flows without sputtering. If your gun doesn’t have a dedicated bleed valve, tilting the barrel and running the motor briefly usually does the trick.
My Final Verdict
After testing all nine battery powered grease guns, the DEWALT Grease Gun 20V MAX is my clear winner. It delivers reliable 10,000 PSI, a 42-inch hose, and variable speed triggers that give you precise control—plus it’s backed by over 6,200 ratings and a 4.8-star average. For the runner-up, the TaskStar Grease Gun kit offers unbeatable value with two batteries and a lock-on trigger for less than many tool-only models. And if you want a complete DEWALT kit with battery and charger included, the #3 DEWALT Grease Gun 20V MAX kit is ready to run right out of the box.
If you already own DeWalt 20V batteries, go with the #1 tool-only DEWALT—it’s the best combination of power and reliability. If you’re starting from scratch on a budget, the TaskStar kit gives you everything you need without breaking the bank. Either way, you’ll save your hands and get the job done faster.
Winner: DEWALT Grease Gun 20V MAX
- DEWALT cordless grease gun can power through clogged grease fittings with a...
- High-volume pump of the battery grease gun pushes up to 5.0 oz/min...
- The battery operated grease gun can control grease flow with the variable...
The best all-around battery powered grease gun for pros and serious DIYers who want proven reliability, 10,000 PSI, and variable speed control.
Runner-Up: TaskStar Grease Gun with Lock-On Trigger
- Effortless Electric Greasing, 5x Faster Than Manual Grease Guns: The...
- Lock-On Trigger for Continuous Greasing: Lock the trigger for non-stop...
- Upgrade from Manual Grease Guns, Save Time on Large Greasing Jobs: Still...
The best value for homeowners and farmers who want a complete kit with two batteries, a lock-on trigger, and solid performance at a budget-friendly price.
Best Complete Kit: DEWALT Grease Gun 20V MAX
- Long Runtime - Stay productive with the ability to dispense up to 7 tubes...
- Help Maximize Productivity - Work fast and dispense up to 9 oz. per minute.
- Powerful Pressure - Power through clogged grease fittings with up to...
The best choice if you need everything in one box—battery, charger, 47-inch hose, and kit box—with the same 10,000 PSI reliability DeWalt is known for.