Wahl - Lithium Ion All-In-One Trimmer - Stainless-Steel

This Wahl 9818 all-in-one trimmer features stainless-steel construction for strength and durability. The Smart Charge system and intelligent LED keep you informed about the battery's life.
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Wahl - Lithium Ion All-In-One Trimmer - Stainless-Steel - Angle
Wahl - Lithium Ion All-In-One Trimmer - Stainless-Steel
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Wahl - Electric Shaver - Silver - Angle
Wahl - Electric Shaver - Silver
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What's Included

  • Wahl All-In-One Trimmer
  • Trimmer, detail shaver, ear/nose detailer and T-blade heads
  • Stubble, medium and full beard guide combs, T-blade guide combs
  • 6-position guide, beard comb, cleaning brush, blade oil, charger base, zippered storage case

Ratings & Reviews

Overall Customer Rating:
93% of customers would recommend this product to a friend (809 out of 872)


Detachable heads

Include trimmer, detail shaver, ear/nose detailer and T-blade for flexible use.

Rechargeable lithium-ion battery

Provides up to 4 hours of continuous run time for extended operation.

1-minute quick charge

So you can easily shave while on the go.

Smart Charge system

With an intelligent LED shows you when the battery power is low, when the trimmer is charging and when it is charged.

Heavy-duty stainless-steel blades and body

Provide strength and durability.

Worldwide voltage

Makes it easy to take the trimmer with you while you travel internationally.

Storage/travel pouch

Helps keep the trimmer safe during transport or when not in use.

Customer rating

would recommend to a friend



  • Rating: 1 out of 5 stars

    Not as good as it looks

    • Verified PurchaserVerified Purchase
    • My Best Buy® Elite MemberElite Member

    I've used a $30 Philips-Norelco groomer for several years that's finally falling apart on me. When I went looking for a replacement, I figured: why not spring for something a little nicer? Good reviews & design led me to this Wahl model. It definitely feels VERY solid and sleek in the hand, and my first use went well enough. However during my second and third attempted uses, even after oiling the blades, I experienced a RIDICULOUS amount of tugging on my beard hair. I have to cut MUCH slower than before, and it's PAINFUL. On top of that, the plastic blade guards you attach to set your cut length are both (a) inconvenient, since you need to remove and replace them to change lengths, and that takes an annoying amount of force and is easy to hurt yourself while doing so, and (b) they don't even fit on very well, somewhat unevenly - one end sticks up higher than the other end no matter how I attach it. Therefore the cut is likely at least somewhat uneven. I really wanted to love this Wahl, but I'm definitely going to exchange it for another brand. Maybe the Panasonic wet/dry easy-adjust model (Panasonic appliances have always impressed me, and the convenience sounds like a big win) or maybe even just get another Philips-Norelco cheapie. It worked much better than this, for years - at half the price.

    No, I would not recommend this to a friend

  • Rating: 4 out of 5 stars

    Upgraded trimmer model

    • Verified PurchaserVerified Purchase
    • My Best Buy® MemberMember

    Purchased at best buy for 59.99 at a $10 discount. Heads interchange easily. used daily x 1 month and still on initial charge. I question the longevity of the on/off switch - as it seems to be a "touch switch" and really does not depress much and "click" (seems to operate like a tv remote control button, but requires about 5 x the force to activate it) it comes with detachable: detailer, t-blade, rotary nose trimmer, and detail shaver I does not come with the Detchable dual shaver or trimmer head. I bought both from Wahl deliverd for $20.95. I was replaceing one of the older trimmers with the 3 AA batteries. The trimmer head compared the the older model is sharper, does not cut the skin, but seems to "catch" on the hairs at times. Have not tried it on a beard yet. more for trimming up what the electric razor may leave behind. the snap on beard length attachments seem cheap plastic - can't comment on their longevity. full charge in 1 hour with 4 hour run time. says if dead, one minute charge will give 3 minutes of run time 5 year warranty I would purchase this again.

    I would recommend this to a friend

  • Rating: 1 out of 5 stars

    Facial hair gets caught, OUCH!


    So the thing looks sleek and I was impressed with the battery life; felt like I hardly charged it at all. BUT, my main use for this trimmer was for the beard. I only ever used the #1, #1 1/2 and #2 (honestly way too many attachments to unpack, but at least there were many options). Every time my facial hair would get caught in between the trimmer blade and the attachment and almost yanked out of my face. Very painful. I tried different attachments but they all had the same results. I just flat out could not get a full stroke through the beard with solid pressure against the skin without the hairs getting caught. My one hang-up on BestBuy is their return policy. I waited too long to try the trimmer out before the return expired, so my brother ended up with a new barely used one. Doubt he'll have a different result than I did, but maybe his threshold for pain is higher than mine. Would not recommend this trimmer.

    No, I would not recommend this to a friend

  • Rating: 2 out of 5 stars

    Not as good as expected


    I used this one time and am returning it. First of all, I had trouble shutting it off. I kept hitting the power button and it stayed running after numerous attempts. As far as the actual use of this, it probably does about everything else except what I needed it for. It is good for trimming the edges of a mustache or goattee. Trying to get the right length you want is a different story. I tried using the slightly longer guards to trim, and it did nothing but glide right over my hair. I used the next size down, and it took it down to around a stubble length. This product is absolutely worthless to me as far as maintaining my desired hair length. For $60 I was hoping it would be able to do everything I needed. I guess I will have to return it, and get a trimmer that has the spin knob in the middle to adjust the hair length by each millimeter, and buy a smaller battery powered trimmer for the detailed stuff. I think they should've forgot the haircut part of this item, and concentrated more on doing all facial hair.

    No, I would not recommend this to a friend

  • Rating: 3 out of 5 stars

    Great looking beginners trimmer

    • Verified PurchaserVerified Purchase
    • My Best Buy® MemberMember

    I purchased this trimmer in March 15' w the intention of using it every once in a while, As I am a man w a difficulty of growing a thick beard. I loved the performance and I was even able to trim my hair between haircuts. The only complain is that it got a little moisture inside one day and it wouldn't shut off. I had to open it up and disconnect the battery and dry it off. Too many small plastic parts despite the outer stainless steel shell. This is something you won't experience with higher quality trimmers. After I put it back together some of the plastic parts were broken but nothing hat prevents use of the trimmer. I would give this trimmer a C+ but still would recommend it to someone who just going to use it occasionally but not often. Not bad price either and it's very nice slick trimmer

    I would recommend this to a friend

  • Rating: 5 out of 5 stars


    • Verified PurchaserVerified Purchase
    • My Best Buy® Elite Plus MemberElite Plus Member

    I purchased this for travel purposes overseas because I couldn't plug my other shavers in. I wasn't sure about the battery operated shavers, but this thing is great! It cuts well, just as well as my plug-in shaver, and the battery lasts a long time. I use it to shave my head, and it does a great job. It doesn't get 'bic' close, so don't get that idea; I still go over my head with a foil shaver to get that nothing-there look without bic'ing. My only two complaints and they aren't big enough to take any stars away are that the power button is sometimes hard to push to turn on/off and the head pops off when trying to clean it in a certain direction. Other than those two things, I love this thing and have actually not used my plug-in shavers since.

    I would recommend this to a friend

  • Rating: 2 out of 5 stars


    • My Best Buy Premier Silver MemberElite Plus Member

    For bead trimming alone it's not so bad. My main complaint with this is trying to trim without a guard. I use an electric shaver for my neck as I have sensitive skin. If I go too long my stubble becomes to long for my foil shaver and need to trim down. I felt like when I would trim down stubble it would miss a lot of hairs and pull out a lot of hairs. I actually had the main head break on me about 3 weeks into use and could only use the longer 'T' head blade to do anymore cutting. As the beard guards only fit the smaller blade I could only use the larger guards reserved for hair cut buzzing. I feel like this trimmer does nothing special. At the price point, I would expect there to be something standout about it. It looks nice yes, but thats about it.

    No, I would not recommend this to a friend

  • Rating: 5 out of 5 stars

    I love this thing

    • Verified PurchaserVerified Purchase
    • My Best Buy® Elite MemberElite Member

    I have had a beard for all of my adult life, yet I used the crudest tools. I would trim with scissors, by lightly dragging a razor over the rough and lastly by using an Oster pet trimmer that I inherited from our dear departed Persian cat (he would have some difficulty at the back end due to the long fur). Get the picture? I saw a review of this Wahl trimmer and it was singing my song. There are a multitude of attachments, it is battery powered and is really a precision tool. It is ergonomically correct, powerful, and being battery powered it is a joy to handle. It is to your beard what a BMW is to the highway. The nose-hair attachment is a revelation!

    I would recommend this to a friend

What experts are saying

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  • which.co.ukJuly 20, 2017
    Wahl 9818-800 review
    The Wahl 9818-800 is a sleek stainless-steel beard trimmer with a hefty price tag. It comes with all the bells and whistles, including four cutting heads, one of which can be used to trim nose and ear hair. Even so, you'll feel short-changed ifFull Review

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