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Wahl Lithium Ion Stainless Steel Trimmer 9864 Review: Not for Everyone, But a Professional-Grade Grooming Kit

Updated on: October 12, 2026 | By: Solomon

Wahl has been a familiar name in both professional barbershops and home grooming for over a century. Since introducing its first electric hair clipper in 1919, the brand has built a reputation for making tools designed for everyday grooming as well as professional use.

The Wahl Lithium Ion Stainless Steel Trimmer 9864 is the upgraded successor to the popular Wahl 9818 and is positioned as an all-in-one grooming kit for beard, hair, body, and detail trimming. But does the stainless steel design make it more practical, or is it simply a premium-looking trimmer? In this detailed review, I’ll share everything you need to know and my real-world experience, so you can decide whether the Wahl 9864 is the right trimmer for you.

Pros

  • Versatile all-in-one grooming kit
  • Plenty of useful accessories
  • Reliable long-lasting battery
  • Convenient 1-minute quick-charge feature
  • Self-sharpening blade technology
  • Washable attachments and cutting heads
  • Suitable for professional grooming and barbershop use
  • Solid built quality

Cons

  • No rubberized grip for added handling comfort
  • No battery level display
  • Main handle is not waterproof
  • Relatively heavy for everyday personal grooming
  • Intended for dry use only

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Insights

Self-Sharpening Blades: The Wahl 9864 uses self-sharpening stainless steel blades designed to maintain their cutting edge throughout the normal lifespan of the trimmer head. Unlike traditional blades that gradually become dull, these blades are engineered to sharpen against each other during use, reducing the need for frequent maintenance.

In everyday use, the blades cut beard and hair efficiently without noticeable pulling. Wahl also does not require routine oiling to preserve sharpness, although occasional cleaning helps keep the trimmer performing consistently. After reviewing long-term user feedback, trimming performance is one of the most consistently praised aspects of the 9864, with very few complaints related to the blades themselves.

Battery Life: The Wahl 9864 is powered by a Lithium-Ion 2.0 battery that provides up to 3.5 hours (210 minutes) of cordless runtime on a full charge. A full recharge takes around 1 hour, giving the trimmer a long operating time between charges.

This extended runtime can also be useful in a barbershop or professional grooming setting, where the trimmer may be used repeatedly throughout the day. For personal use, the 3.5-hour runtime means you can go through multiple grooming sessions without frequently reaching for the charger. Depending on how often you groom, a single charge can last for several weeks.

1-Minute Quick Charge: The Wahl 9864 also supports a 1-minute quick-charge feature for situations when the battery is completely drained. After just one minute of charging, Wahl states that the trimmer can provide approximately 3 minutes of cordless operation.

This short boost can be useful when you need to finish a quick trim but don’t have time to wait for a full charge. It is particularly convenient for last-minute grooming or during a busy day, although the 1-minute charge is intended as a temporary power boost rather than a replacement for the regular 1-hour full charge.

T-Blade Trimmer Head: The Wahl stainless steel trimmer comes with an extra-wide T-blade head as its main trimming head. Its wider cutting surface allows you to cover more area with each pass, while the T-shaped design also makes it suitable for beard shaping, outlining, and general hair trimming.

You can use the T-blade with or without a guide comb. Without a comb, it cuts hair down to approximately 0.7mm, that makes it suitable for maintaining very short stubble or creating a closely trimmed look. Adding a guide comb allows you to leave more length when trimming or styling the beard and hair.

Trimming Guards: The Wahl 9864 includes 10 trimming guards that cover everything from short stubble to longer beard and hair styles. Instead of relying on a single adjustable comb, the kit combines fixed-length guards with two adjustable guards to provide a wider range of cutting lengths.

The eight fixed guide combs offer preset lengths of 1.5mm, 3mm, 5mm, 6.5mm, 8mm, 9.5mm, 11mm, and 13mm, making them useful when you want a consistent trimming result without adjusting settings.

In addition, the trimmer includes two adjustable guide guards that cover 2–21mm. Each adjustable guard provides 10 length settings, selected with a sliding switch, allowing you to fine-tune beard or hair length without changing combs as often.

Foil Shaver Head: The Wahl 9864 includes a dedicated foil shaver head for finishing and close grooming. Unlike many all-in-one trimmers that use a single-foil attachment, this head features two foil blades with a center cutting bar, giving it a three-blade design that’s closer to a compact foil shaver than a basic finishing attachment.

It’s designed for shaving facial stubble, cleaning up necklines, and creating sharp beard and hair outlines. The foil head is also suitable for maintaining body hair when you want a smoother finish than the T-blade can provide, making it a useful complement to the trimmer rather than a replacement for a dedicated electric shaver.

Precision Detail Trimmer Attachment: The Wahl 9864 also includes a precision detail trimmer attachment for areas that require more control than the main T-blade. Its narrower blade makes it easier to work around the mustache, sideburns, neckline, and eyebrows without removing more hair than intended.

This attachment is designed for refining beard shapes, creating sharper edge lines, and cleaning up small details after the main trim. It adds precision to the grooming kit rather than replacing the wider T-blade, that makes it useful for finishing work and detailed styling.

Nose and Ear Trimmer Head: This wahl stainless steel trimmer 2.0 includes a rotary nose and ear trimmer head designed for safely trimming unwanted hair in hard-to-reach areas. Its compact rounded design helps trim nose and ear hair without exposing an open cutting blade, that makes it more suitable for these areas than scissors or standard trimmer blades.

The attachment is intended for routine grooming and can be swapped onto the handle in the same way as the other interchangeable heads, adding dedicated nose and ear trimming to the all-in-one kit.

Washability: The Wahl 9864 has washable attachments and cutting heads, allowing you to rinse them under running water after use. This makes it easier to remove loose hair and grooming residue without relying solely on the included cleaning brush.

However, the main trimmer body is not waterproof, so it should not be submerged or placed directly under running water. The foil shaver head is also intended for dry use, so it should be used on dry skin and hair rather than as a wet/dry shaving attachment. Keeping these parts separate during cleaning helps prevent water from reaching the electrical components and keeps the trimmer properly maintained.

Travel Lock: The Trimmer comes with a convenient travel lock system that protects the device from accidental turning on during traveling or storing in the baggage. To activate the travel lock, you need to press and hold the power button for 3-5 seconds and repeat the process to deactivate the travel lock.

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What’s in the Box?

Included Accessories of Wahl 9864 Lithium Ion Stainless Steel Trimmer

The Wahl 9864 comes with a fairly extensive set of attachments and accessories, covering trimming, shaving, detailing, cleaning, charging, and storage. Here’s everything included in the package:

  • Wahl 9864 trimmer itself
  • Main T-blade trimmer head
  • Precision detail trimmer head
  • Foil shaver head
  • Foil protective cap
  • Nose and ear trimmer head
  • 8 separate fixed guide combs
  • 2 adjustable trimming guards
  • Charging cord with multi-voltage adapter
  • Barber comb
  • T-blade protective cap
  • Travel bag
  • Appliance oil
  • Cleaning brush
  • User manual

With the different cutting heads, guide combs, and supporting accessories, the package is designed to handle several grooming tasks without requiring separate tools for each one.

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My Personal Experience

Wahl is a well-established name in men’s grooming, so I expected the 9864 to feel like a solid, professionally oriented machine. After making practical experiments, that’s exactly how I would describe the build. The Wahl 9864 is clearly designed to handle everything from beard and hair trimming to full-body grooming, but I found its size and weight more noticeable during personal grooming. When I first picked it up, it felt like a fairly heavy, substantial device rather than a lightweight everyday trimmer. For professional use, that solid construction makes sense, but for personal grooming, I generally find lighter trimmers easier to maneuver.

The metal frame gives the 9864 a sturdy feel, although I noticed that it can become slippery because Wahl doesn’t use a soft rubberized grip around the handle. I found it easier to maintain a secure grip when the handle was completely dry. This is also important because the main body isn’t waterproof. The attachments and cutting heads, however, are washable, so I could rinse them under running water for a more thorough cleaning. I just kept the main handle away from water.

The blades are another area where the 9864 performed well for me. They are sharp enough to handle different types of hair, and the self-sharpening design keeps blade maintenance relatively effortless. I particularly liked the wide T-blade because it covers a larger area with each pass, which makes trimming head hair and larger areas of the beard quicker. My only concern is the blade’s relatively thin construction. Considering how solid the trimmer itself feels, I would have preferred a slightly more robust T-blade because a hard impact or accidental drop could potentially damage it. With careful handling, though, I don’t see this as a major issue.

The foil shaver head is probably my favorite attachment in the package. It uses two foil blades with a center cutting bar, so it feels much closer to using a small dedicated foil shaver than the single-foil attachments I have used on some competing all-in-one trimmers. I found it particularly useful for short stubble and body shaving. When dealing with longer facial or body hair, I first trimmed it down with the T-blade and then used the foil head. That combination gave me a much cleaner result.

I wouldn’t expect the foil attachment to replace a dedicated electric shaver, though. If I wanted a completely clean shave in the fewest possible strokes, I needed more than one pass in some areas. That’s understandable because the 9864 is designed as an all-in-one grooming system rather than a dedicated foil shaver. For finishing short stubble and cleaning up areas after trimming, I found the foil head quite useful.

The precision detail trimmer is another practical attachment. I used it for areas where I needed more control, such as around the beard edges and other small details. I found that it wasn’t quite sharp enough to give me a perfect result in every stroke, so I sometimes needed a second pass. I don’t consider that a major weakness, though, because precision attachments on all-in-one trimmers often require a little extra attention compared with using a dedicated detail trimmer. For its intended purpose, I found it useful for cleaning up and refining smaller areas.

The nose and ear trimmer is pretty convenient in practice. I found it handy for trimming nasal and ear hair, and I didn’t experience any noticeable pulling, nicks, or cuts while using it. If you’re already familiar with rotary nose trimmers, there’s not much of a learning curve here.

The battery is another area where the 9864 impressed me. I got around 3 to 3.5 hours of cordless runtime, which is more than enough for my personal grooming routine and can easily stretch across several weeks depending on how frequently you use it. The long runtime also makes sense for professional use, where a trimmer may need to handle multiple grooming sessions throughout the day.

I did notice that the motor doesn’t feel as aggressive as I expected from such a large and solid-looking trimmer. Some users have also mentioned this, and I can understand where that impression comes from. When I compare it with something like the Panasonic ER-GB96 or Brio BeardScape V2, the 9864 doesn’t feel quite as powerful or aggressive. However, I wouldn’t call the motor weak. I trimmed my own very thick head hair with the 9864 and didn’t experience noticeable tugging or a lack of cutting ability. So, while the motor could be stronger, I didn’t find its performance inadequate for the types of grooming I used it for. After using the different attachments, I see the Wahl 9864 as a solid, versatile grooming machine with a few compromises. I like its sturdy construction, wide T-blade, useful foil attachment, extensive range of guards, and especially its long battery life. On the other hand, its weight, slippery metal handle, relatively delicate T-blade, and less aggressive motor are worth considering. For me, it works particularly well when I want one machine to cover several grooming tasks rather than expecting it to perform exactly like a dedicated trimmer or shaver in every category.

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Comparison with Alternative


Wahl 9864 vs Philips Norelco Multigroom 9000

The Wahl 9864 and Philips Norelco Multigroom 9000 both are designed as all-in-one grooming kits, they take slightly different approaches. The Wahl focuses on a simpler setup with four main grooming heads, while the Multigroom 9000 puts more emphasis on having a wider selection of specialized attachments. For me, the difference becomes more noticeable when I compare their shaving heads, battery life, and overall handling.

The Wahl 9864 comes with four main heads and the T-blade handles both beard and hair trimming, so Wahl doesn’t need to include separate beard and hair trimmers. The Multigroom 9000 comes with more grooming attachments, including separate options for different grooming tasks. I found the Philips setup more versatile when I wanted a dedicated attachment for a specific job, while the Wahl felt simpler because I could cover most of my basic trimming needs with fewer heads.

The biggest difference I noticed is the foil shaver. The Wahl 9864 has a three-blade foil head with two foils and a center trimmer, and I found it more useful for actual shaving than the single-foil shaving attachment on the Multigroom 9000. The Wahl head covers a wider area and feels more like a small dedicated foil shaver. I used it for short facial stubble as well as body shaving, although I still needed more than one pass when I wanted a completely clean result. The Philips foil attachment is suitable for finishing work, such as cleaning up beard edges and necklines, rather than replacing a dedicated shaver.

For beard and hair trimming, I found both machines capable of handling dense hair. The Multigroom 9000 handled my dense beard and thick hair without struggling, while I also trimmed my very thick head hair with the Wahl 9864 without noticeable tugging or a cutting problem. However, the Philips feels more powerful to me. When I compared the two, the Wahl’s motor felt less aggressive, even though it still had enough cutting ability for thick hair. So I wouldn’t call the Wahl weak, but I would give the Multigroom 9000 the edge if motor power is one of your priorities.

The trimming guards also take different approaches. The Wahl 9864 includes eight fixed combs ranging from 1.5mm to 13mm along with two adjustable guards covering 2–21mm. That gives me plenty of length options without making the attachment system overly complicated. The Multigroom 9000, on the other hand, gives me a larger selection of specialized guards and attachments. I prefer the Wahl setup when I already know the length I want and want to switch quickly between combs, while the Philips offers more flexibility for different types of grooming.

Battery life is another area where the Multigroom 9000 clearly lasts longer. The Philips provides up to around six hours of cordless runtime, and I found that enough to last about a month with my regular use. The Wahl 9864 provides around three to three and a half hours, which is still more than enough for several grooming sessions and can also last weeks for personal use. However, Wahl has an advantage when I need a quick boost: its one-minute quick-charge feature gives me a few minutes of cordless operation, which is useful when I forget to charge it before grooming.

I also noticed a difference in handling and build. The Wahl 9864 feels like a solid, heavy machine because of its metal construction, but I found that weight less convenient for personal grooming, especially when moving the trimmer around different parts of the body. The handle can also feel slippery because it doesn’t have a soft rubberized grip. The Multigroom 9000 also has a substantial build, but I found it easier to maneuver for general personal grooming.

After using both, I wouldn’t say one completely replaces the other. I prefer the Wahl 9864 when I want a simpler grooming kit with a stronger focus on the T-blade and a more capable foil shaving attachment. I prefer the Philips Norelco Multigroom 9000 when I want more specialized attachments, stronger-feeling motor performance, and significantly longer battery life.

For me, the choice comes down to whether I value Wahl’s simpler barber-style setup and three-blade foil head or Philips’ broader attachment selection and longer-running battery.

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Verdict

I found the Wahl 9864 to be a capable all-in-one grooming kit with a solid build, long battery life, and a useful range of attachments. The wide T-blade, three-blade foil head, and multiple trimming guards make it versatile enough for beard, hair, and body grooming. However, its heavier metal construction and slippery handle make it less convenient for everyday personal grooming. For me, the Wahl 9864 makes more sense as a professional grooming tool for barbershops and frequent use than as a lightweight personal trimmer. If durability, versatility, and long cordless runtime matter more than portability, it’s a practical choice.

Should You Buy the Wahl 9864 Trimmer?

Yes, if…

  • You want an all-in-one grooming kit for beard, hair, and body grooming.
  • You need a versatile trimmer for professional or barbershop use.
  • You prefer a solid metal build and don’t mind a heavier trimmer.
  • You want a useful foil shaver attachment alongside the main T-blade.
  • You need multiple trimming lengths from fixed and adjustable guards.
  • You value long cordless battery life and a 1-minute quick-charge option.

No, if…

  • You mainly want a lightweight trimmer for everyday personal grooming.
  • You prefer a softer, more secure rubberized grip.
  • You want a more powerful or aggressive motor for thick hair.
  • You expect the foil attachment to perform like a dedicated electric shaver.
  • You want a fully waterproof trimmer that can be used or cleaned under running water.

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