Introduction
Thank you for purchasing the Panasonic ES3831K Electric Wet/Dry Travel Shaver. This manual provides essential information for the safe and effective use, maintenance, and care of your shaver. Please read these instructions thoroughly before use and retain them for future reference.

Figure 1: Panasonic ES3831K Electric Wet/Dry Travel Shaver, front view.

Figure 2: The compact size of the ES3831K makes it ideal for travel and easy handling.
Important Safety Instructions
- This appliance is designed for shaving facial hair. Do not use it for any other purpose.
- Keep the shaver dry when not in use.
- Do not disassemble, repair, or modify the shaver yourself. Contact an authorized service center for repairs.
- Do not use if the outer foil or blades are damaged, as this may cause skin injury.
- This shaver is designed for use with two AA alkaline batteries. Do not mix old and new batteries, or different types of batteries.
- Remove batteries if the shaver will not be used for an extended period.
- Keep out of reach of children.
Parts Identification
Familiarize yourself with the components of your shaver:
- Outer Foil: The protective mesh covering the blades.
- Inner Blades: The cutting elements beneath the foil.
- Foil Frame: Holds the outer foil in place.
- Power Switch: Used to turn the shaver ON (1) and OFF (0).
- Battery Compartment: Located at the bottom of the shaver.
- Battery Cover: Secures the batteries.

Figure 3: Close-up view of the single blade cutting system, illustrating the outer foil and inner blades.
Setup
Battery Installation
- Ensure the power switch is in the "OFF" (0) position.
- Remove the battery cover by sliding it downwards or twisting it off, depending on the design.
- Insert two new AA alkaline batteries, ensuring the correct polarity (+/-) as indicated inside the compartment.
- Replace the battery cover securely.
Note: Batteries are not included with the shaver. Use only AA alkaline batteries.

Figure 4: Battery compartment open, illustrating the insertion of two AA alkaline batteries.
Operating Instructions
General Shaving Tips
- For best results, shave before washing your face.
- Hold the shaver at a right angle to your skin.
- Stretch your skin taut with your free hand and move the shaver slowly over your face in the direction of your beard growth.
- Avoid pressing too hard, as this can cause irritation and reduce shaving efficiency.
Wet/Dry Shaving
The Panasonic ES3831K is designed for both wet and dry shaving. You can use it dry for a quick shave or with shaving foam or gel in the shower for a more comfortable experience.
- Dry Shaving: Simply turn the shaver ON and begin shaving.
- Wet Shaving: Apply shaving foam or gel to your face. Turn the shaver ON and shave as usual. Rinse the shaver head under water during and after shaving to prevent clogging.

Figure 5: The shaver is fully waterproof, allowing for comfortable wet or dry shaving.
Maintenance
Cleaning the Shaver
Regular cleaning ensures optimal performance and hygiene.
- Ensure the shaver is turned OFF.
- Remove the outer foil frame.
- Rinse the outer foil and inner blades thoroughly under warm running water. You can also add a drop of liquid hand soap and turn the shaver on for a few seconds to create lather, then rinse.
- Use the provided cleaning brush to remove any stubborn hair clippings from the inner blades and shaver body. Do not use the brush on the outer foil, as it can damage it.
- Shake off excess water and allow the parts to air dry completely before reassembling.
- Reattach the outer foil frame securely.

Figure 6: The shaver head is washable and can be easily cleaned under running water.
Blade and Foil Replacement
For optimal shaving performance, it is recommended to replace the outer foil and inner blades approximately every one to two years, depending on usage. Worn blades or foil can reduce shaving efficiency and cause skin irritation. Replacement parts can be purchased from authorized Panasonic retailers or service centers.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Shaver does not turn on. | Batteries are dead or incorrectly inserted. | Replace with new AA alkaline batteries, ensuring correct polarity. |
| Poor shaving performance / Does not cut hair effectively. | Blades or foil are dull or damaged; shaver head is clogged with hair. | Clean the shaver head thoroughly. Consider replacing the outer foil and inner blades. |
| Skin irritation after shaving. | Pressing too hard; dull blades/foil; sensitive skin. | Shave with lighter pressure. Replace blades/foil if worn. Try wet shaving with foam/gel. |
| Shaver makes unusual noise. | Hair clippings caught in the motor; damaged parts. | Clean the shaver thoroughly. If noise persists, contact customer support. |
Specifications
- Model Number: ES3831K
- Power Source: 2 x AA Alkaline Batteries (not included)
- Motor Speed: 8,500 rpm
- Shaving System: Single Blade Foil Shaver
- Wet/Dry Operation: Yes, fully immersible and washable
- Dimensions: Approximately 2.2 x 4.3 x 6.6 inches (5.6 x 10.9 x 16.8 cm)
- Weight: Approximately 5.4 ounces (153 grams) (without batteries)
- Special Features: Ergonomic grip, lightweight, travel-friendly.
Customer Support
For further assistance, replacement parts, or warranty information, please visit the official Panasonic website or contact their customer service department. Keep your purchase receipt as proof of purchase.
You can find more information and support at the Panasonic Store on Amazon.