In brief: The best cordless cartridge gun for you depends on how you plan to use it. For frequent professional use, powerful 18V systems with high pressure are ideal. For occasional DIY tasks, more compact devices are often sufficient. Compatibility with your existing batteries, maximum pressure and handling are the key factors. Our comparison will help you choose.
The days of using brute force and ending up with sore hands to empty a grease cartridge are over. A cordless cartridge gun takes on this strenuous work for you. It delivers consistent, precise pressure and makes greasing, sealing or bonding more efficient and cleaner.
Our 2026 test and comparison will help you find the right cordless cartridge gun from the wide range of devices available. We explain the key buying criteria and introduce selected models.
Table of contents
What are the advantages of a cordless cartridge gun?
The most obvious advantage is the freedom of cordless operation. You are not tied to a power outlet and can also work in hard-to-reach places or outdoors. This is particularly useful when maintaining vehicles or machinery.
However, the more important benefit is reduced strain and improved ergonomics. A manual cartridge gun requires considerable force, which quickly makes itself felt in your hands and forearms. The cordless version pushes the material out of the cartridge with consistent force. You only have to guide the tool and control the process using the trigger.
The result is cleaner and more controlled application. Whether grease, silicone or construction adhesive, you can precisely control the amount and pressure. This reduces waste and delivers more professional results.
Tip
If you have already invested in a particular cordless tool system, first check models from the same manufacturer. This allows you to use your existing batteries and chargers and save significantly on costs.
These are the most important buying criteria
Before making a purchase, you should weigh up these points for your intended use.
Voltage and battery system
The most common cordless cartridge guns operate at 18 volts. They offer a good balance between power and ease of handling. Compatibility with your existing battery platform is often the deciding factor. A tool without a battery is a cost-effective option if you already have compatible batteries.
Maximum pressure
Maximum pressure is specified in bar or PSI. High pressures of 400 bar or more are necessary for demanding work on agricultural machinery or blocked grease nipples. For standard applications in automotive work or around the home, tools with lower pressure are often sufficient.
Cartridge size and compatibility
Make sure the gun can accommodate the cartridge sizes you need. The typical size for grease cartridges is 400g. Compatibility with different cartridge types (aluminium, plastic) may also be important.
Weight and handling
A lightweight, well-balanced cartridge gun will cause less fatigue during longer jobs. Look for an ergonomically designed handle and an easily accessible control button.
Warning
Never use a cartridge gun intended for grease with adhesive or other chemicals without thoroughly cleaning it first. Residue may react or damage the seals. The reverse also applies: a tool used for silicone should not be used for food-grade grease without thorough cleaning.
Test & Comparison of Selected Models
We took a close look at various models in the cordless cartridge gun segment.
The highest-rated cordless cartridge guns in our range in direct comparison:
| Model | Customer rating | Availability |
|---|---|---|
| 18 Volt Li-Ion cordless cartridge gun AKP2-18 - with battery and charger - 🏆 Test winner | ★ 4,8 (12) | In stock |
| 18 V Li-Ion cordless cartridge gun AKP2-18 - without battery and charger | ★ 4,9 (8) | In stock |
| 18 V Li-Ion cordless cartridge gun AKP18 - without battery and charger | – | Currently unavailable |
| Fritz Göbel one-handed grease gun 4500 PSI - 400g cartridge/loose grease | – | Currently unavailable |
| Fritz Göbel grease gun with short hub connection 4500 PSI - 400g cartridge/450g grease | – | Currently unavailable |
For professional users who value a complete set, the is an excellent choice. It comes with a battery and charger and is ready to use straight away. Its 18V performance delivers impressive results for demanding tasks.
If you already have compatible 18V batteries, the is an efficient and cost-effective alternative. It offers the same performance as the complete set, without requiring you to invest in batteries twice.
For safe and precise grease application, the right accessories are essential. The special coupler ensures a secure connection between the gun and grease nipple, preventing annoying slipping or leaks.
Illustration of How to Use It
The following illustration shows how a cordless cartridge gun is typically used when servicing a vehicle. It demonstrates the freedom of cordless operation and an ergonomic working position.
How do you use the gun correctly?
First, charge the battery fully. Then insert the cartridge after removing the seal at the tip and opening the back. Make sure the cartridge is seated firmly and straight in the magazine.
Screw the desired attachment firmly onto the cartridge tip or the thread on the gun. Place the attachment on the grease nipple to be filled. Then press the trigger in short intervals until grease emerges from the nipple. Stop as soon as fresh grease starts to come out of the seal.
Note
With very thick grease or in cold temperatures, it can be helpful to warm the cartridge slightly beforehand (not above 40°C). This improves its flow properties and reduces the load on the gun's motor. However, avoid naked flames or extreme heat sources.
Which accessories are useful?
Buying a cordless cartridge gun is often only the first step. Useful accessories expand its range of applications and make it more convenient to use.
- Adapter sets: A set with various nipple attachments covers most standard applications. Look for a good fit and robust construction.
- Extension hoses: Long, flexible hoses make it possible to reach hard-to-access grease nipples without awkward contortions.
- Cleaning tools: Special needles or brushes for cleaning the attachments and gun after use significantly extend their service life.
- Carrying case: Protects the device and helps keep all components – gun, battery and adapters – together in one place.
Maintenance and care for a longer service life
Clean the tip and attachments immediately after each use with a lint-free cloth. If necessary, remove dried-on material with a suitable solvent that will not damage the seals.
Store the device without a cartridge inserted. Regularly check the seals on the piston and connection threads for cracks or breaks. Keep the gun in a dry room. Occasionally lubricate moving parts with a light grease.
Conclusion: Make the right choice
Choosing the best cordless cartridge gun starts with considering how you intend to use it. For frequent professional use, it is worth investing in a powerful 18V complete system including a battery. DIY users who already have batteries will find so-called "Tool-only" options to be an excellent and affordable solution.
Don't forget the right accessories. The correct attachments are at least as important as the gun itself. Invest in a high-quality adapter set and keep your gun clean. This will ensure you get long-lasting use from a tool that saves you strenuous manual work and delivers more precise results.
Whether you service cars, lubricate agricultural machinery or work on construction projects, a good cordless cartridge gun is an investment in efficiency and quality. It saves time and effort and belongs in the tool kit of every ambitious tradesperson.
Frequently asked questions
- Can I use a cordless grease gun with batteries from other manufacturers?
- No, as a rule, cordless grease guns are only compatible with batteries from the same manufacturer or the relevant battery system. You should therefore check whether you already own batteries from a particular system to save costs. Compatibility is always stated in the product description.
- What are the advantages of a cordless grease gun over a manual model?
- The main advantages are reduced effort and consistent, controllable pressure. With a manual grease gun, you need to apply considerable force, which can be tiring when servicing several grease nipples or working with viscous material. The cordless version delivers consistent pressure at the touch of a button, making the job more precise and less strenuous.
- What jobs require high pressure of over 400 bar?
- Very high pressure is needed for blocked or heavily contaminated grease nipples, for example on heavy construction machinery, agricultural equipment or lorry axles. For regular maintenance of car bearings, off-road vehicles or boat trailers, equipment with lower pressure is often sufficient.
- Do I need special attachments for my grease gun?
- Yes, choosing the right attachment is crucial for successful results. Various nipple adapters are available for different types of grease nipples. The wrong attachment may leak or damage the nipple. Make sure the grease gun is compatible with standard adapter sets or specialised tool accessory ranges.
- How should I store and maintain my cordless grease gun?
- Store the device clean and dry, without a cartridge inserted. Thoroughly clean the nozzle after each use to prevent grease or silicone from drying on it. Charge the battery according to the manufacturer's instructions and store it at room temperature. Check the seals regularly for damage.