Lithium Battery Grease Gun Electric M18 Compatible - Compact 10000 PSI

Our review of the Lithium Battery Grease Gun Electric finds it best for mechanics and maintenance pros who need a compact, cordless solution that reaches high pressure without extra batteries. The main reason to buy is straightforward: it pairs with existing Milwaukee M18 batteries for instant use and delivers up to 10,000 PSI, making it suitable for heavy machinery lubrication while remaining portable enough for shop or field work.

Key Features

• High pressure: Delivers up to 10,000 PSI so users can move thick grease into tight fittings and heavy-duty equipment without repeated pumping.
• Variable-speed trigger: Allows precise control of grease flow up to 5.2 oz/min, useful when switching between precision bearings and larger fittings.
• M18 battery compatibility: Works with many Milwaukee M18 battery models so users can power the tool without buying a separate battery pack.
• Leak-proof construction: Reinforced alloy canister and factory testing reduce the chance of deformation and leakage under heavy use.
• Built-in LED: Integrated work light improves visibility when greasing in low-light engine bays or under equipment.
• Accessories included: Comes with a 12 in flexible hose, a 6 in rigid pipe, three couplers, and two spanners for versatile setups out of the box.

Who It's For

This grease gun fits professional technicians, fleet maintenance teams, and agricultural or construction crews who already use the M18 battery platform and need a portable high-pressure tool. Its combination of up to 10,000 PSI and a variable-speed trigger makes it suitable for both heavy tractors and smaller precision bearings.

Less suitable buyers include those who do not own M18 batteries and do not want to purchase one, since the product is sold without a battery. Also, if ultra-light duty, infrequent home use is the only need, a simple manual gun may be a more cost-effective option.

Pros & Cons

Pros

• High pressure performance handles stubborn fittings that manual guns struggle with.
• Variable-speed trigger gives good control for delicate lubrication tasks.
• Convenient M18 compatibility lets existing battery owners start work immediately.
• Includes useful accessories and a work light for improved usability on the job.

Cons

• Sold without a battery, so new users must already own or purchase an M18 battery separately.
• Some customers gave mixed feedback on build quality, so heavy shop users should inspect fit and finish on receipt.

Specifications

Our Verdict

The Lithium Battery Grease Gun Electric is a practical buy for professionals who already use the M18 battery ecosystem and need a portable, high-pressure grease solution. It pairs strong performance and useful accessories with a variable-speed trigger and LED work light, offering good value for service shops and field technicians willing to provide their own battery.

Frequently Asked Questions

Does this grease gun include a battery?
No, the tool is sold without a battery and requires a compatible Milwaukee M18 battery to operate.

What grease types will it accept?
It works with bulk grease and standard 14 oz cartridges for flexible use across applications.

Is the hose leak-proof?
The reinforced alloy canister and factory testing aim to minimize leaks, and the unit also has an air-bleeder valve to prevent clogged hoses.