Introduction

This guide will give step by step instructions on how to replace your battery.

Tools

No tools required.

Remove the battery compartment from the underside of the device. With your thumb and index finger, pinch the tab and pull gently until the compartment is released.
  • Remove the battery compartment from the underside of the device.

  • With your thumb and index finger, pinch the tab and pull gently until the compartment is released.

  • Always ensure that the device is unplugged before tampering with it to ensure there is no risk of electrical shock.

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Take out old battery by pressing from the side marked "PUSH" on the compartment, and replace with a new battery, positive side up.
  • Take out old battery by pressing from the side marked "PUSH" on the compartment, and replace with a new battery, positive side up.

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Replace the battery compartment into the bottom of the device.
  • Replace the battery compartment into the bottom of the device.

  • Reset the time of the clock.

  • Plug your clock back in as to not rely on the back up battery.

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Conclusion

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

2 other people completed this guide.

5 Comments

Thank you so much for creating this. :)

LadyLion - Reply

step 2--I can't get the battery out of the compartment. Am I not pushing hard enough? Should I take a screw driver to pry it out? I'm afraid of breaking the compartment since it's only plastic.

Iris - Reply

The battery does not prevent the display/clock from switching off when I unplug the cord. Is the purpose of the battery not supposed to be to retain power even when unplugged? I have already put in a replacement one, presuming the one that came with it to be faulty. How do I get this to work?

Is the original Sony one meant to charge up or something? Please help as it doesn’t seem right if back up battery function does not do it’s job.

KIRSTY MCNICOL - Reply

The back up battery doesn’t seem to do it’s job. Unit switches off when unplugged. Is it the case that the original Sony battery charges? I assumed ut to be flat, replaced the battery but this doesn’t retain the power either

Is my clock faulty? How to engage the back-up battery?

KIRSTY MCNICOL - Reply

@kirstyonline Kirsty, as the battery description says, it is only backup. So not for full device powering, but only to back-up time status while mains power is down. Unfortunately, this device is only capable of running from mains.

Radoslav Gulik - Reply

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