Difficulty

Moderate

Steps

12

Time Required

                          30 minutes

Sections

1

  • Battery
  • 12 steps

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Introduction

The original batteries are 600mAh, I have chosen to replace them with ENELOOP ones because they keep their charge for a long time.

You’ll be searching for the version with U solder lips. The ones I got from a local site had EAN 8438493102642

What you need

Step 1

              Start
  • Let’s go!

Let’s go!

1024

Step 2

  • Click the trimmer head off
  • Remove both screws inside the head (in the picture: left screw already removed)

Click the trimmer head off

Remove both screws inside the head (in the picture: left screw already removed)

Step 3

  • Gently remove the top part until you see this. Take a good look how the white insert in the head part (you just removed) is fixed because it will probably fall out at some point :)

Gently remove the top part until you see this. Take a good look how the white insert in the head part (you just removed) is fixed because it will probably fall out at some point :)

Step 4

  • Now remove the black insert by sliding it up a bit

Now remove the black insert by sliding it up a bit

Step 5

  • There is another screw hiding in that tiny hole

There is another screw hiding in that tiny hole

Step 6

  • We’re in!
  • The PCB clicks out but there are slide contacts at the back, so don’t be alarmed if the trimmer suddenly activates. Slide something inbetween and then put some tape on the slider to avoid further contact.

We’re in!

The PCB clicks out but there are slide contacts at the back, so don’t be alarmed if the trimmer suddenly activates. Slide something inbetween and then put some tape on the slider to avoid further contact.

Step 7

  • Unscrew the motor too so we can get good access to the bottom of the PCB

Unscrew the motor too so we can get good access to the bottom of the PCB

Step 8

  • Before you start unsoldering, write the polarity down so there is no unpleasant mistake later on!!!
  • There is plenty of solder, heat up one side and gently pull out the solder lip by pulling the battery. Then do the same thing at the other side.
  • Make sure to keep the holes open so we can insert the new ones later on

Before you start unsoldering, write the polarity down so there is no unpleasant mistake later on!!!

There is plenty of solder, heat up one side and gently pull out the solder lip by pulling the battery. Then do the same thing at the other side.

Make sure to keep the holes open so we can insert the new ones later on

Step 9

  • One extra thing to do before we can start soldering in the new batteries!
  • Yes, you see that right: the solder lips of the new batteries will probably be to wide, so we cut them up a bit.
  • You are handling batteries that have been charged in the factory, don’t short them!

One extra thing to do before we can start soldering in the new batteries!

Yes, you see that right: the solder lips of the new batteries will probably be to wide, so we cut them up a bit.

You are handling batteries that have been charged in the factory, don’t short them!

Step 10

  • TADA! New batteries are in

TADA! New batteries are in

Step 11

  • Now for the reassembly: just reverse the steps and pay attention to this:
  • First screw in the motor again
  • Remove the tape that shields the contacts
  • Align the PCB properly before clicking it in
  • When inserting the PCB, pay attention to the LED so it is inserted into its hole or you will not be able to close the case properly
  • When the PCB is in, do a quick test to make sure it runs
  • When attaching the head part, make sure the white insert is mounted properly: two tiny holes go over two pins in the head so the screw holes align perfectly. Center the moving part of the insert and center the motor pin so they fit

Now for the reassembly: just reverse the steps and pay attention to this:

First screw in the motor again

Remove the tape that shields the contacts

Align the PCB properly before clicking it in

When inserting the PCB, pay attention to the LED so it is inserted into its hole or you will not be able to close the case properly

When the PCB is in, do a quick test to make sure it runs

When attaching the head part, make sure the white insert is mounted properly: two tiny holes go over two pins in the head so the screw holes align perfectly. Center the moving part of the insert and center the motor pin so they fit

Step 12

  • That’s it! Congratulations on an almost new trimmer for <5 euro / dollar

That’s it! Congratulations on an almost new trimmer for <5 euro / dollar

To reassemble your device, follow these instructions in reverse order.

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                    petur

Member since: 07/23/2011

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Sander Valcke - Oct 20, 2021

Reply

Excellent guide! I thought I had to replace the batteries, but didn’t even know the top clicked open… :p Cleaning that out + separating the blades (try to do that without removing the spring, its difficult to put back) and thoroughly cleaning + lubricating there was enough to make it run like new :)