Electric Shaver: Replace the Blade or Buy a New One? I Ran the Numbers

Good morning, it’s まさきん.

One morning I glanced at the electric shaver I use every day and noticed the foil was chipped. It is a Braun Series 5. Should I buy a replacement head, or just replace the whole shaver? Since I had to decide anyway, I compared the options with actual numbers.

*This information is current as of publication. Please check the official websites for the latest details.

A chipped foil means “fix it = replace the head”

The first thing I checked was whether I could send it in for repair.

According to the Braun Repair Center price list, repairs are charged at a flat rate. However, consumables such as replacement heads are excluded from that flat rate. Braun’s warranty terms also say that wear or damage to consumables is paid service. So when the foil chips, the standard approach is to buy a replacement head and swap it yourself.

In other words, “fixing it” really just means buying a new head. Using a shaver with a chipped foil could hurt your skin, so it seems wise to replace it sooner rather than later.

Main reasons foils wear out early

Braun’s FAQ lists two main reasons foils tear early. One is pressing the shaver hard against your skin. The other is using it while it is still dirty with whisker debris.

The foil appears to be made extremely thin. Braun says it is enough to hold the shaver at a right angle to your skin and glide it lightly. It made me wonder whether I had been pressing too hard without realizing it.

My shaver and its replacement head model number

I use a Braun Series 5 from the “50-B1000s” line. The Braun Repair Center website lists it as released in 2020 with type number 5762. The replacement head is model “F/C53B.” It is a cassette type with the foil and cutter block in one unit, so you swap the whole head. Braun’s official website lists it as the replacement head for Series 5 and Series 6.

You can find the model number on the shaver itself

If you are not sure which model you have, checking the type number on the shaver is the most reliable method. According to Braun, most models have a four-digit number printed below the long-hair trimmer. On some models it is on the back or under the cutter block.

53B vs. 52B, 51B and 54B

There are several Series 5 replacement head model numbers, which is confusing. 52B and 51B are said to be for the older Series 5 models. They look similar, so be careful not to buy the wrong one.

Another thing I noticed was “F/C54B.” Braun’s official repair-service shop listed 54B as the replacement head for type 5762. Some electronics retailers show 53B as discontinued. If you cannot find 53B, 54B may be worth considering.

Comparing the four options by price

Here are the prices I found at the time of writing. I also included Braun’s official flat repair fee for comparison.

What surprised me was the gap between a genuine head and a new shaver. With the genuine head from Rakuten Ichiba, the difference was only about 3,000 yen. And since a new shaver comes with a new head, the real difference feels even smaller.

Repair, on the other hand, costs about the same as a new shaver. Braun’s flat rate covers parts and labor regardless of what is broken. If you are thinking of repairing a broken shaver, it makes sense to compare the fee against the price of a new one.

The deciding factor is age and battery life

When the price gap is this small, price stops being the deciding factor. What matters is how long you have been using the shaver, in other words, how healthy the battery is.

According to Braun’s FAQ, the battery is connected to the circuit board. You cannot replace it yourself; it has to be done as a repair at the Repair Center. The FAQ also notes that taking it apart yourself voids the warranty.

Rechargeable batteries are said to gradually hold less charge the more you use them. If the number of days you get from one charge has clearly dropped, the shaver may be nearing the end of its life. That said, short run time can sometimes be caused by a dirty head. When dirt dulls the shave, you tend to press harder, which puts more load on the motor.

Head or new shaver: a decision table

Here is how I sorted it out for myself.

The manufacturer warranty is one year from the date of purchase. It seems that if you register as a Braun member, you can extend it to up to five years. Check whether you registered before you decide.

If you are reviewing your monthly spending, looking at your phone bill at the same time could make a bigger difference.

Breaking it down to a monthly cost

As another way to look at it, I divided the costs by month.

Braun recommends replacing the head every 18 months. Its official website also advises replacing the foil and cutter block once every 18 months. Dividing the 6,280 yen genuine head by 18 months comes to about 350 yen a month.

Some people say third-party heads do not last as long. If you assume half the replacement cycle, 9 months, it comes to about 245 yen a month.

The difference is only about 100 yen a month. Since this is something that touches my skin every morning, I personally felt that at this gap, genuine is the way to go. Even from a financial planner’s point of view, a difference of about 1,300 yen a year is on the small side.

18 months is only a guideline

Braun notes that thicker beards or more frequent use can wear the head out faster. If the shave gets worse, it recommends replacing the head even before 18 months. Put the other way, if it is still cutting well, sticking to the guideline is probably fine.

The risk of third-party heads is quality, not breakdowns

Third-party heads are attractive because they are cheap. But the risk seems to lie more in shave quality than in damaging the shaver.

If you choose on price alone, you may end up replacing the head more often. The more sensitive your skin, the more it makes sense to choose genuine. For me, the difference was 100 yen a month, so I chose genuine without hesitation.

How to replace the head

Because it is a cassette type, the swap itself seems very easy. Based on Braun’s official instructions, the steps are as follows.

1. Turn off the shaver and unplug the charging cord
2. With the head straight, press the release button on the front right side
3. Lift the old head cassette off
4. Push the new cassette straight onto the shaver until it clicks into place
5. Run it briefly and check for odd noises or wobbling

According to Braun’s FAQ, on the Series 5 only the button on the front right side can be pressed. It is normal that the left side does not press in. Without knowing that, you might think it was broken, so it is good to keep in mind.

Care tips to make the head last

If you are buying a new head, you want it to last. Here is the care Braun recommends.

• Clean off whisker debris after every use, with the cleaning station or by rinsing with water
• If you rinse with water, apply shaver oil to the foil once a week
• If you use the cleaning station, replace the cleaning fluid at least once every 8 weeks after opening

The cleaning fluid apparently contains alcohol and lubricating oil. Braun also says old fluid can cause odors and yellowing. What care looks like changes a bit depending on whether you use a cleaning station.

Not pressing too hard is also key to protecting the foil, I think.

Tips for searching on Rakuten Ichiba

Finding the right replacement head takes a little search know-how.

If you just search for “Series 5 replacement head,” the older 52B and 51B models get mixed in. Searching for “Braun replacement head 53B” or the model number “F/C53B” makes it easier to find the right one.

Parallel imports vs. domestic authorized products

On Rakuten Ichiba, some items labeled “genuine” are sold as parallel imports. These are authorized products made for overseas markets and imported into Japan, so they are not fakes. However, the packaging language and instructions may be different.

If that matters to you, check whether the product name says “domestic authorized product” or “parallel import.” Third-party heads are also labeled “compatible with 53B,” so you need to read product names carefully to tell whether something is genuine.

When to buy

Timing your purchase with Rakuten Super SALE (Rakuten’s big quarterly sale event with boosted points) could get you extra points back. That said, I do not recommend continuing to use a chipped foil. If yours is chipped, it is fine to buy now instead of waiting for a sale. I wrote about how I approach bulk buying during sales in my review of my Super SALE “stock-up budget”.

Head or new shaver: who each option suits

To wrap up, here is who each option suits.

A genuine replacement head suits you if

• Your shaver still holds a good charge
• You have sensitive skin and do not want a worse shave
• You are happy with how your current shaver works

A new shaver suits you if

• Battery life has clearly gotten worse
• The difference versus a replacement head is around 3,000 yen
• You are interested in a model with newer features

A third-party head suits you if

• You do not mind a small difference in shave quality
• You are fine with replacing it on a shorter cycle

FAQ

Q. Can I buy just the foil or just the cutter block?

The F/C53B is a cassette with the foil and cutter block in one unit. In general, you replace them together as a set. Braun also recommends replacing both the foil and the cutter block every 18 months.

Q. Is a chipped foil covered by the warranty?

Under Braun’s warranty terms, wear or damage to consumables is paid service. Replacement heads count as consumables, so it looks like you will need to buy a new head and swap it. If you are unsure, check with the store where you bought it or with the repair service.

Q. Does a head really last 18 months?

Braun’s guideline is 18 months. However, a thicker beard or more frequent use can shorten that. If you feel the shave has gotten worse, it seems best to replace it early.

Q. Can I replace just the battery myself?

According to Braun, you cannot do it yourself; it is handled as a repair. Taking the shaver apart yourself voids the warranty. Repair fees are flat rates by model, so I think it is best to compare them with the price of a new shaver.

Q. What should I do if 53B is sold out?

Braun’s official repair-service shop listed 54B for type 5762. After checking your shaver’s type number, 54B may be worth considering. If you are unsure, asking Braun’s customer service center is the surest way.

Q. Will a third-party head damage the shaver?

The risk of third-party heads seems to be more about shave quality and your skin than about breakdowns. Still, it is worth checking how problems caused by non-genuine parts are handled. For me the difference was 100 yen a month, so I chose genuine.

Official sources I referred to

• Braun official: Series 5/6 shaver replacement head F/C53B
• Braun official: Warranty and after-sales service
• Braun Repair Center: FAQ
• Braun Repair Center: Reference repair prices
• Braun Repair Center: 50-B1000S (5762)

Summary

This time my shaver was still in good shape, so I ordered a genuine replacement head (6,280 yen) on Rakuten Ichiba. If you have been using your shaver for a long time and the battery is weakening, buying a new one may be the more sensible choice.

When the gap between a replacement head and a new shaver is small, I find it simplest to decide based on how long you have owned it. Small reviews of consumables like this can be approached the same way as in how to get started reviewing your fixed costs. I also wrote about choosing tools that touch your skin in my article on the Kai “Nadesori” razor.

If you have also chipped your foil, start by checking your model number and how old your shaver is.

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