Logitech MX Keys Battery Replacement

Written By: Sam Omiotek

Comments: 5

Difficulty

Moderate

Steps

Time Required

30 minutes - 1 hour

Introduction

Follow this guide to remove and replace the battery in a Logitech MX Keys wireless keyboard.

Note: If your battery looks puffy or swollen, take extra precautions.

Tools

Step 1

Flip the keyboard's power switch into the OFF position.
A red indicator is visible beneath the switch when it's in the OFF position.

Step 2

Flip the keyboard over and lay it top-side down onto a clean work surface.
Lay the keyboard on a soft towel if your work surface may scratch it.
Heat an iOpener and lay it on the left plastic foot for about two minutes.
You may also use a hair dryer or heat gun, but be careful not to overheat the keyboard.

Step 3

Insert the pointed end of a spudger under the edge of the foot.
Push the spudger underneath the foot and pry up to release its adhesive.
The foot should come away from the keyboard without much force. If it feels stuck, apply more heat and try again.
Once you can grip the foot with your fingers, peel it up and away from the keyboard to remove it.
Repeat steps 2–3 for the remaining two feet.

Step 4

Use the pointed end of a spudger to poke through the film underneath each foot to access the screw underneath.

Step 5

Use a Phillips screwdriver to remove the three 7.6 mm screws securing the battery cover.
The battery cover will remain held in place by plastic clips.

Step 6

Insert an opening pick in between the battery cover and the keyboard along its top edge to release the clips securing the battery cover.
The rest of the battery cover clips may free themselves at this point. If so, skip the next step.

Step 7

Insert an opening pick in between the battery cover and the keyboard along the other edge to release the rest of the clips.
During reassembly, check to make sure the battery cover is installed in the correct orientation. If installed backwards, the screws holes will not align.

Step 9

Use a spudger to gently "walk" the battery cable out of its connector.
During reassembly, make sure the battery connector is not upside-down before you insert it.

Step 10

Remove the three power cables from their channel in the keyboard.

Step 11

Insert the flat end of a spudger underneath the short end of the battery opposite the cables.
Push the spudger underneath the battery, separating it from the adhesive holding it to the keyboard.
Make sure you push underneath the battery and not into it. Don't bend or deform the battery.
If the battery is not removing easily, apply a few drops of high strength (≥90%) isopropyl alcohol underneath and tilt the keyboard around to direct the alcohol to the adhesive.
Remove the battery.
To install a replacement battery:
Remove any leftover adhesive from the battery well.
Apply double sided tape or pre-cut adhesive to secure the new battery.

Conclusion

To reassemble your device, follow the above steps in reverse order.

Take your e-waste to an R2 or e-Stewards certified recycler.

Repair didn’t go as planned? Check out our Answers community for troubleshooting help.

5 comments

按照锂电池循环的寿命500次计算，mx key 充一次电至少可以用10天，那就是5000天，10几年后你才需要看这篇文章。

timo -

I wish ifixit would sell the battery as well.

Peter Liu -

Though @timo is technically correct with his calculations, I use this keyboard so often that after only eight months, the battery needs to be recharged about once every two days. Time to replace it! Such calculations can never account for usability. I use the backlight feature constantly which I'm sure is why my battery degraded as quickly as it did.

Mike Sims -

Yes I agree with you. Ever since Logi PC SW failed to control the auto-backlit function, my MX Keys just lights up every second. The battery status went poor after using it like 11 months.

Evan Zhao -

Found this item on ebay as a replacement battery. Voltage, capacity, and dimensions are on spec, but it will require some soldering to move the connector to the replacement battery. I recommend clipping off the original connector closer to the battery to leave some slack for future replacements. Always use heat shrink to protect those solder connections and prevent shorting out the battery.