Wahl Trimmer #9918-6171 Review: Lasts 2 Months Once Charged in Full?

Editor rating

9.4/10 on June 1, 2016

Nicely groomed mustache and beard have the ability to enhance the masculinity of a man and make him look debonair. However, to achieve this suave look, it is important to have a beard trimmer like Wahl 9918-6171 that does its job efficiently without breaking the bank.

Wahl 9918-6171: reviews

With an experience of more than 9 decades, Wahl is a famous brand known to manufacture great grooming products for men. Their products are known for their affordability and efficiency, and this 9918-6171 Groomsman Beard and Mustache Trimmer from this brand is a perfect example of how excellent their products are. This beard trimmer comes with a number of attachments and accessories that further enhance its functionality, making it one of the best beard trimmers currently available in the market. Continue reading this Wahl Rechargeable Trimmer #9918-6171 review to know more about this product.


In the box, along with the 9918-6171 Beard Trimmer, you’ll also find-

  • 6-Position Adjustable Guide Comb
  • Beard Comb
  • 3 Separate Guide Combs
  • Charger
  • Cleaning Brush
  • Storage Stand
  • Travel Case
  • Small Bottle of Lubricant Oil
  • Instructions Manual in English and Spanish


1. Precise Carbon Steel Blades

This beard trimmer features self-sharpening blades made from high-quality carbon steel to catch maximum hair in a single stroke and ensure that the trimming results are precise and clean. Moreover, no matter if you have a slight stubble or a long beard, you can effortlessly use this trimmer on any length of hair you have.

2. Adjustable Guide Combs

The 6-position adjustable guide comb that comes with this shaver can be adjusted easily to get the desired results. The comb is easy to attach and detach, making the whole trimming process quick and simple. Moreover, there are 3 individual guide combs included in this trimmer for enhanced convenience.

3. Rechargeable Lithium-ion Battery

The lithium-ion battery of this trimmer is rechargeable and can be fully charged in around 8 hours. When its battery is fully charged and you don’t use it on a daily basis, a single complete charge can last for 2 months or even more based on how many times and how long you use the trimmer. Moreover, you can also use the trimmer while it is being charged.

4. Powerful and Silent Motor

Although the motor of this Wahl 9918-6171 Beard Trimmer is very powerful, astonishingly it is very silent as well. As a matter of fact, it is more silent than many high-end models available nowadays. As a result, you can easily use this trimmer early in the morning without waking up your family members. Also, if the trimmer starts making noise, use the included lubricant oil on its blades and the noise will be reduced immediately.

5. Built-in Trimmer

This beard trimmer also has an additional mustache trimmer to add fine details to your mustache and sideburns. It does a great job of shaping your sideburns and mustache in any particular fashion.

6. Contoured Ergonomic Handle

The trimmer itself is light in weight and feels very comfortable in hands. For enhanced trimming convenience, it features soft grip pads on the lower parts of its body and has a contoured design. This allows you to easily hold and use the trimmer even if your hands are wet.

7. Charging Indicator

The trimmer also features an LED charging indicator that illuminates red light when the unit is being charged and green light when charging is completed.

Cleaning, Renew & Maintenance

One of the drawbacks of its cheap price tag is that this Wahl Rechargeable Trimmer #9918-6171 is not waterproof. So, the only way to clean it is to do it manually with the help of the included brush. It certainly is a weakness of this beard trimmer but fortunately, the whole cleaning process don’t take more than 10 minutes. But just because you need to clean the trimmer manually doesn’t mean you should avoid cleaning it after every single use. Using the trimmer multiple times without cleaning the clogged hair can affect the performance of it and ultimately, can completely stop it from functioning.

So, it is recommended that you should clean the trimmer with the brush after every use. After cleaning it, lubricate its blade with the included oil to make sure that your trimmer is ready for the next use. This will also ensure that your trimmer is able to offer a flawless performance for a long time.

Warranty Details

While many top beard trimmers available in the market carry a 1-year or 2-year warranty, Wahl 9918-6171 comes with a 3-year warranty.

Cost is one of the most important aspects that drive our buying decisions when we want to buy any product. But when you are able to purchase a product at a reasonable price tag and that too with some very useful features, investing in such a product is known as a smart buying decision. I am quite sure that this Wahl Rechargeable Trimmer #9918-6171 review has offered you some great information about this trimmer and now you are ready to make your own smart buying decision.


1. Premium carbon steel blades.

2. 6-position adjustable beard comb.

3. Can be used while charging as well.

4. Long battery life.

5. Highly affordable.

6. Soft grip pads and contoured design.

7. Powerful and silent motor.

8. Lightweight and compact.

Built-in mustache trimmer.

Clean and precise trim without any pulling of hair.


1. Not waterproof.

2. Battery cannot be replaced.

3. Many consumers complained that the trimmer is not able to deal with long beards efficiently. Well, in that case my opinion is, slow and steady wins the race.


A good product doesn’t have to always carry an expensive price tag and this Wahl Rechargeable Trimmer #9918-617 is a perfect example. It is one of the cheapest beard trimmers that comes with such a wide range of attachments and accessories and is actually able to deliver great trimming performance. If you have a limited budget and still want a trimmer that can provide you with the desired trimming results with utmost convenience, then this Wahl Rechargeable Trimmer #9918-617 is the best bet.

4 responses to “Wahl Trimmer #9918-6171 Review: Lasts 2 Months Once Charged in Full?”

  1. Jonathon says:

    I have been using Wahl Professional 8655-200 clipper for 2 years but yesterday it stopped working. This time I want to start on a low budget. This Wahl Rechargeable Trimmer #9918-6171 seems great to me. But will this trimmer be really able to handle my thick beard? I am questioning this because the price seems too low to me.

    • Instant Grooming says:

      Haha we always try to provide you guys with the best products with most optimized cost. Don’t worry about the price dude. Wahl Rechargeable Trimmer #9918-6171 is really a great device for trimming purpose! Don’t be late to purchase one.

  2. Jackob says:

    Wahl products are great to use. I have been using Wahl hair clipper pro for last 2 years. Well, it needed replacement, but eventually the machine is working great.

    • Instant Grooming says:

      Yes the main part of a Wahl shaver or groomer or clipper tend to last longer than our expectation. Thats the hidden charm of Wahl. 😀

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