Quick Answer
Keep an electric shaver as long as it gives you a comfortable shave and the handle works properly. Replace the cutting head when it wears out; consider repair or a new shaver when charging, the motor, or the housing becomes the problem. For Braun foil-and-cutter assemblies, the recommended replacement interval is about 18 months with good cleaning and average use. The handle can stay in service through replacement heads, so a worn cassette is a reason to check the head first.
Last updated: September 16, 2026 | Author: William | Estimated reading time: 4 minutes
Shaver Lifespan and Head Lifespan Are Different
How long do electric shavers last? The useful answer starts with two parts: the cutting head you replace and the handle you keep.
The foil and cutters wear with use. Braun’s replacement-parts guidance recommends replacing them about every 18 months with good cleaning and average shaving frequency. Beard type and shaving method affect wear, so inspect the foil and pay attention to changes in your shave.
The handle has its own service needs. If it charges normally, runs consistently, and holds the head securely, a worn cutting assembly is worth addressing before you spend money on a complete replacement.
Think of head replacement as routine maintenance. Judge the whole shaver by its condition, repair options, and the cost of keeping it useful.
Is the Head Worn Out, or Does the Shaver Need Service?
Clean the head and charge the shaver according to its instructions, then use the result to choose your next step.
| What you notice | What to do |
|---|---|
| The shave improves after cleaning | Keep using the shaver and maintain the cleaning routine. |
| The foil is nicked, torn, dented, or visibly worn | Stop using the damaged head and find the correct replacement. |
| It still misses hair, but charging and running time seem normal | Inspect the cutting head for wear and check that it is seated correctly. |
| It will not charge, or running time has dropped sharply | Complete the model’s charging checks, then arrange service if the problem remains. |
| A correctly fitted replacement head has not helped | Ask for help diagnosing the head or handle before buying another cassette. |
A charging fault needs attention to the power system. A loose or damaged mount needs attention to the handle. These problems belong on a repair quote, while worn foil and cutters belong on a replacement-head order.
Braun’s service support page lets you find help by product or type number. Have the model number ready and describe what changed—for example, shorter running time or poor cutting after cleaning.
Compare the Cost of a Head, a Repair, and a New Shaver
If the handle works well and the head is worn, price the correct head first. When the shaver also needs a repair, add both costs before comparing it with a new device.
| Option | What goes into the total |
|---|---|
| Replace the head | The correct head, delivery, and tax. |
| Repair the shaver | Diagnosis, parts, labor, shipping, and a fresh head if one is also needed. |
| Buy a new shaver | The device and any essential accessories sold separately. |
For example, suppose a head costs $35, a repair costs $80, and a suitable new shaver costs $140, including delivery and tax. These are illustrative prices.
- Head only: $35. If that is all your shaver needs, keeping it costs $105 less upfront than buying the new device.
- Repair plus head: $115. The new shaver costs just $25 more. At that point, compare the repair coverage, the condition of the rest of the device, and whether the new model better suits your routine.
Check your existing warranty before accepting a paid repair. Ask for a complete quote so you can compare the options on the same basis.
The price you paid years ago is already spent. Focus on what it costs today to get a dependable shave again.
When Keeping Your Current Shaver Makes Sense
Keep a shaver you like when the handle is sound and the needed head is available. A newer model has to offer something useful to justify replacing a device that already does the job.
For Braun Series 7 owners replacing a worn cassette, check the part number on the old head against the shaver’s model documentation. Then select the matching option from the compatible Series 7 replacement heads. The page offers 70S and 73S options, so match the cassette family before choosing a pack size. ShaversHead sells compatible replacement parts, not genuine Braun parts.
For another series or brand, use its own model and head code to find the right part. Once you have found a head that fits, save the part number with your shaver details for the next replacement.
When to Request a Repair or Replace the Device
Get a repair quote for a charging, drive, or housing fault. Ask what the repair covers, whether the parts are available, and what coverage comes with the work. Leave internal repairs to a service provider unless your model includes a user-service procedure.
Braun’s authorized service network repairs many grooming appliances, including some years after purchase. Check availability for your model before writing off an older shaver.
Choose a new shaver when the necessary part is unavailable, safe operation cannot be restored, or the complete repair bill makes replacement the better buy. If the costs are close, compare the condition of the old device, repair coverage, and the features you will actually use on the new one.
An older shaver that works well can stay in your routine. A newer one with an expensive fault can deserve replacement sooner. Condition and the next bill are more useful than a birthday on the calendar.
Care Without Guesswork
Follow your model’s cleaning, drying, lubrication, and charging instructions. Use water only on the parts approved for rinsing, and inspect a Braun foil for nicks, dents, and wear before shaving.
Keep a short record of head changes and repairs. If a new head restores a comfortable shave, you have a useful reference for the next time performance declines. If it does not, that record helps a service provider narrow down what still needs attention.
