Categories: WAHL

Wahl 9818 LI Stainless Steel Lithium Ion Plus Stainless Steel Beard Trimmer Instruction Manual

Wahl 9818 LI Stainless Steel Lithium Ion Plus Stainless Steel Beard Trimmer


When using an electrical appliance, basic precautions are required to always be followed, including the following: READ ALL INSTRUCTIONS BEFORE USING (This Appliance)

 To reduce the risk of electrical shock:

  • Do not reach for an appliance that has fallen into water. Unplug immediately from receptacle.
  • Do not use while bathing or in a shower.
  • Do not place or store appliance where it is able to fall or be pulled into a tub or sink.
  • Do not place in or drop into water or other liquid.
  • Except when charging, always unplug this appliance from the electrical outlet immediately after using.
  • Unplug this appliance before cleaning. to damage by animals, or exposed to weather.



  1. This trimmer is conveniently designed for household use. It should be allowed to charge completely for 1 hour before its first use. If not charged completely prior to
    the first use, the LED will flash while the trimmer is running.
  2. Remove the trimmer , re charging  transforms and  accessories from the packing material
  3. Connect the transformer to the trimmer. BE SURE TRIMMER IS IN THE “OFF – 0” POSITION WHEN CHARGING.
  4. Plug the recharging transformer into any convenient electrical outlet at the correct voltage.
  5. When charging the trimmer, the LED will be ON.
  6. When using the trimmer, the LED will be ON.
  7. When charging is completed, the LED will go from ON to OFF.
  8. When the trimmer is about to run out of energy, the LED will flash to indicate that you have less than 15% battery capacity remaining. Once flashing starts, there
    should be enough charge remaining to finish trimming before re-charging the trimmer.
  9. Once the LED begins flashing to indicate that it needs to be re-charged, it will remain flashing until the trimmer is completely re-charged or until the trimmer runs out
    of power. Completely recharged means that enough charge time has elapsed and the LED has gone from ON to OFF. Full charge from a dead battery should take
    about 1 hour.
  10. When trimmer is low in power, it should be connected to the transformer and plugged into an outlet to assure maximum power is available when it is next used. This
    transformer is designed to completely charge the battery without overcharging. Do not use the trimmer while it is charging.
  11. The battery will take approximately 60 minutes to charge. The Lithium Ion Trimmer also has quick charge capability.
  12. insert only recharging transforms plug supplied by the manufacture into the recharge receptacle


  • If the LED did not flash before the trimmer stopped running try resetting the trimmer by charging the trimmer completely until the LED shuts OFF.
  • Trimming is disabled when charging or if the disabling plug is inserted into the jack.
  • If the trimmer is fully charged the LED may remain OFF if plugged into the charger.
  • If the trimmer unexpectedly stopped operating try resetting the device by plugging the trimmer into the charger.
  • If your trimmer does not seem to take a charge, check the following before returning it for repair:
  1. Check outlet to make sure it is working by plugging in another appliance.
  2. Be sure the trimmer is properly connected to the recharging transformer, all connections are secure and the switch on the trimmer is turned “OFF – 0.”
  3. If your electricity is connected to a master power switch, we suggest the trimmer be disconnected from the charger anytime the master switch is off. Leaving the unit
    plugged into a dead outlet or an unplugged charger will drain the battery.
  4. If trimmer does not run and it is completely charged, turn the unit “ON – I” and pinch or push the blades manually. (Oil may have dried out between the blades, so
    they may be temporarily stuck together.)

For battery replacement the entire, intact clipper or trimmer should be sent to your nearest WAHL Customer Service center (the address can be found within this booklet) or taken to the to a suitably qualified professional the battery should be replaced by the the original manufactures spare for safety reasons a suitable should not be used
Do not attempt to remove the battery LITHIUM-ION BATTERY can explode  catch file  and cause burn damage or high temperatures.


Do not dispose of this product or the Lithium battery in the normal household waste.
The product should be returned to your nearest WAHL Customer Service center (the address can be found within this booklet) where we offer a take back service or
taken to a local collection facility where they will be dealt with safely and sent for the appropriate recycling.


Your trimmer has been designed with several advanced features to help you get perfect results every time you trim. Your trimmer may be used to neatly trim goatees,
beards, mustaches, neckline, sideburns around the ears and eyebrows, or anywhere you may need grooming. It also makes a great all-around family trimmer for mini
haircuts and touch ups between trips to the barber or to clean up the shape of the neck.

A 6-Position Trimming Guide Comb makes achieving a consistent trim easy every time

The guide comb can be removed (providing a seventh cutting position) and reattached without changing the preset cutting length, so once you have found the perfect
length, there’s no guesswork in achieving it with every trim. The guide comb is a two-piece assembly, consisting of a base and a comb. It should not be disassembled.
To attach the guide comb, simply slide it on at a slight angle and press the release tab down to secure in position. To remove the guide comb, gently push up on the
release tab and slide the assembly away from the trimmer. Adjust the trimming length by pressing on the thumb lever and moving the comb forward or backward to the
desired setting.

  • A detachable head system enables you to quickly change from a shaver to a precision trimmer to trim mustache, goatee, or anywhere. To remove attachment, simply
    pull top edge of blade away from body unit. To attach, align back tab of attachment head to cavity on the inner edge of trimmer unit and push down on top of blade.
  • Should blades become damaged or dull or if you want additional attachment heads for your trimmer, you may purchase them from WAHL.



Trimmer blades have precision-hardened and ground cutting teeth. Blades should be handled carefully and never bumped or used to cut dirty or abrasive material.
Clean with the included brush.


For best results, put one or two drops of WAHL Clipper Oil on the blades only when necessary, or approximately once a month. Motor bearings are permanently
lubricated—do not attempt to oil.
When oiling your trimmer, turn the trimmer “ON,” hold the unit with the blades facing DOWN and squeeze one or two drops of oil onto the blades. Wipe off excess oil
with soft cloth.
Excessive oiling or application of liquids will cause damage if allowed to seep back into motor.


Before storing your trimmer, use the cleaning brush to whisk any loose hairs from the unit and the blades. Store unit in such a manner so that blades are protected from
This Appliance Should be stored in a manner  where it is not subjected to crushing heating above the 100 degree Celsius or incineration


The travel plug is used to prevent the trimmer from accidentally powering on when traveling. When the travel plug is engaged, the power button will not function.

To attach guide combs, hold comb with the teeth up. Snap guide comb attachment firmly to the bottom of the trimmer blade.

These attachments are ideal for blending, tapering and defining beards, as well as for achieving a “close trim” stubble look around the face. To use the attachments, go with the hair direction. To achieve closer looks, go against the hair direction.


The following are suggested trimming steps and trimmer positions. You may find different procedures work better for you.

  1. Comb your beard in the direction that it grows to help reveal stray hairs that may be longer than the others.
  2. Attach a guide to trim and taper your beard. Begin with a guide of a long trimming length. Trim toward your chin in smooth, overlapping strokes, following the lay of
    your beard. If you trim against the way your beard naturally lays, the trimmer will cut the hair much shorter.
    Change the trimming guides to progressively shorter lengths until you reach the desired length of beard. You may wish to trim closer near the ear and down under
    the chin, changing to a longer guide toward the front of the face and point of your chin.
  3. To cut the outline of your beard, remove the trimming guide. Starting under your chin and working back toward your jawbone and ears, cut the outer perimeter of
    your beard underneath the jawbone. Continue the line all the way up to the ears and hairline.
  4. Accentuate your beard line by using the trimmer in a downward motion. Start at the line you’ve created and, working from the chin back toward the ears, trim the area right under your beard line.
  5. Define the upper part of your beard using the same technique

Slowly move the trimmer downward on desired areas to neatly trim and shape.
For a close finish along neckline, sideburns, mustaches and beards use the detail shaver head.
Simply glide the trimmer over your arm or leg until desired hair length is achieved. The first time you trim the hair, start by using a longer guide comb on the trimmer,
then use progressively shorter settings if a shorter length is preferred.
Glide the trimmer on your torso region in an upward  motion until desired hair length is achieved
Slowly  move detailer yo neatly trim stray hairs .You may also use your trimmer blade with the #2 or #3 guide combs(from the bridge of your nose to the temple). Be sure to mind your eyelashes as you trim.

Make sure the nasal passage are clean slowly move the ear/nose trimmer in and out of each  nostril , no more then the 11/4 inch deep
make sure the outer areas of the ears do not  contain any wax . Hold the ear flat near with the one hand and carefully insert ear/nose trimmer no more than 1/4 inch the outer ear.
CAUTION: Do not insert the detailer or any other foreign object into the inner ear. For hair growing on the outside of the ear, simply move the detailer slowly along the
edges of the ear.


  • The first time you cut the hair, cut only a small amount until you become accustomed to how long each guide comb leaves the hair. Always start by placing the largest
    guide comb on the trimmer, then use shorter combs if a shorter length is desired.
  • Remember, between professional haircuts, the hair grows evenly all over the head and a light trimming at the lower neck and sides may be all that is needed to bring
    back that neat, well-groomed look.
  • For uniform cutting, allow the trimmer to cut its way through the hair. Do not force it through at a faster rate
  1. Start by combing the hair so it falls into its natural direction.
  2. Place the largest Guide comb onto your trimmer and start by trimmer the sides from the bottom upwards. Hold the trimmer lightly against the hair, with teeth of  guide comb pointing up but flat against the head. Slowly lift the trimmer up and outward through the hair, cutting only a small amount at a time.
  • Repeat around sides and back of head.
  • If you desire shorter hair, either change to a shorter guide comb or apply more pressure and less lift away from head with the present attachment.
  • This entire procedure requires practice, and it is always better to leave too much hair the first few haircuts.

Documents / Resources

Wahl 9818 LI Stainless Steel Lithium Ion Plus Stainless Steel Beard Trimmer [pdf] Instruction Manual
9818 LI, Stainless Steel Lithium Ion Plus Stainless Steel Beard Trimmer, 9818 LI Stainless Steel Lithium Ion Plus Stainless Steel Beard Trimmer

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