Wahl Stainless Steel Slate Beard Trimmer for Men – Electric Shaver, Nose Ear Trimmer, Rechargeable All in One Men’s Grooming Kit – Model 9864
The WAHL Stainless Steel Lithium Ion 2.0+ Slate Beard Trimmer (Model 9864) is designed to cover nearly every common men’s grooming task in a single, cordless device. It combines beard trimming, precision detailing, close shaving, and nose and ear grooming with a focus on long battery life and modular attachments. This Wahl beard trimmer is aimed at users who want reliability, flexibility, and serviceability rather than frequent upgrades or disposable designs.
Pros
- Excellent battery life rated for four to six hours of cordless use
- Lightweight feel in hand at approximately 7.5 ounces
- Broad length control with fixed and adjustable guide combs
- Interchangeable heads support trimming, detailing, shaving, and nose and ear grooming
- Widely available replacement heads and long-term serviceability
Cons
- Proprietary barrel plug charger instead of modern USB C
- No clearly defined wet use rating
- Larger footprint than ultra-compact travel trimmers
Everyday Grooming Versatility
Image credit: Wahl Clipper Corp
The Model 9864 is built around interchangeable heads that allow it to adapt to different grooming needs without requiring separate tools. The wide T blade is suited for general beard and mustache trimming, while the precision detailer supports clean edges and fine shaping. A dual foil shaver head is included for close shaving, and a rotary attachment handles nose and ear hair with a dedicated hygienic design.
Length control is one of the strongest aspects of this kit. Eight fixed guide combs cover cutting lengths from one sixteenth of an inch to one half inch, making them ideal for short beards, fades, and stubble maintenance. Two adjustable guide combs expand the usable range further, offering ten positions each and covering approximately 2 millimeters to 21 millimeters. This allows users to maintain fuller beards or gradually adjust length without constant guard changes.
By separating trimming, detailing, and shaving into distinct attachments, the trimmer avoids the compromises common to single head designs. Users can move between styles or maintenance tasks with predictable results, making the device well suited for varied grooming routines rather than a single fixed look.
Build Quality and Ergonomics That Hold Up
Image credit: Wahl Clipper Corp
Despite being sold as a full grooming kit, the trimmer itself is relatively lightweight. At approximately 7.5 ounces in hand, it avoids the bulky feel often associated with multi attachment systems. This weight strikes a balance between control and comfort, allowing for steady handling during detail work without causing fatigue.
Stainless steel construction gives the trimmer a solid and durable feel, reinforcing its positioning as a long term grooming tool rather than a disposable appliance. The form factor prioritizes stability and grip, which is particularly noticeable during edging and precision trimming where lighter plastic housings can feel less controlled.
Power is supplied by Wahl’s Lithium Ion 2.0+ battery, which is rated for four to six hours of runtime depending on usage and attachment choice. This extended battery life is a major advantage over many competitors that require frequent charging. It supports weeks of regular grooming on a single charge and makes the trimmer practical for both home use and extended travel.
Performance Across Trimming and Shaving Tasks
Image credit: Wahl Clipper Corp
The combination of a wide T blade and precision detailer allows the Model 9864 to handle both bulk reduction and fine shaping effectively. The guard system provides consistent length control across a wide range of styles, from short stubble to longer, well defined beards. Adjustable guide combs are especially useful for maintaining longer facial hair with fewer interruptions.
Battery endurance plays a key role in everyday usability. With up to six hours of cordless operation available, the trimmer supports multiple full grooming sessions without concern for power management. This is particularly valuable for users who rely on cordless tools exclusively and prefer infrequent charging.
For close shaving, the dual foil shaver head provides a dedicated solution rather than an improvised one. It is intended for finishing work and clean-shaven areas where a trimmer alone would leave visible stubble. This makes the kit suitable for users who alternate between beard styles and clean-shaven looks without switching devices.
Ownership, Serviceability, and Travel Reality
Image credit: Wahl Clipper Corp
One of the Model 9864’s strongest long term advantages is serviceability. The trimmer uses standard Wahl detachable heads, including the widely available T blade Part 1062. Replacement heads are easy to find through major retailers and barber supply channels, making this a tool that can be maintained for years rather than replaced when a blade wears out.
Battery care is straightforward and well suited to intermittent use. The lithium ion battery holds its charge well over time, making the trimmer reliable even if it sits unused between grooming sessions. Periodic charging helps preserve long term battery health and ensures consistent performance.
While worldwide voltage compatibility makes the trimmer usable internationally, its proprietary barrel plug charger is a notable drawback by modern standards. In 2026, many travel focused grooming tools have moved to USB C charging, allowing shared cables and adapters. With the Model 9864, users still need to pack a dedicated Wahl charger, which slightly undercuts its otherwise strong travel credentials.
Conclusion: Should You Buy the WAHL Lithium Ion 2.0+ Stainless Steel (Model 9864)?
The WAHL Stainless Steel Lithium Ion 2.0+ (Model 9864) remains a highly capable all in one grooming tool that emphasizes battery life, versatility, and long term serviceability. Its lightweight feel, four-to-six-hour runtime, and wide range of interchangeable heads make it an excellent choice for users who want one dependable device to handle trimming, detailing, shaving, and nose and ear grooming. Those who prioritize USB C charging or ultra-compact designs may want to look elsewhere, but for durability and flexibility, this Wahl trimmer continues to stand out.
