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Polar M400 Watch Battery Replacement

简介

This guide will teach someone how to take out the battery in the Polar M400 and replace it with a working one. A damaged battery could be due to lack of charge or submersion in water more than 30 meters. It could also be due to battery age and various malfunctions. Over time, excessive and wear can lead to battery damage. The Polar M400 has an internal, rechargeable battery. You can charge the battery over 300 times or two years before a notable decrease in its capacity. The number of charge cycles also varies depending on use and operating conditions. Once the battery is replaced, follow local waste disposal regulations and do not dispose of this product as unsorted municipal waste.

你所需要的

  1. Polar M400 Watch Battery Replacement, Wrist Strap: 步骤 1 中的图像 1，1

    • Insert a standard paper clip into the holes on both sides of the watch that connect the watch's face with the wrist strap.

    编辑

  2. Polar M400 Watch Battery Replacement: 步骤 2 中的图像 1，2 Polar M400 Watch Battery Replacement: 步骤 2 中的图像 2，2

    • Apply an upward pressure to the holes until the locking pins release.

    • Use precision tweezers to remove the pins that connect the face with the strap.

    编辑

  4. Polar M400 Watch Battery Replacement: 步骤 3 中的图像 1，1

    • Once the pins are released, the old wrist strap should snap off.

    • Simply lock the new wrist strap into place.

    编辑

  5. Polar M400 Watch Battery Replacement, Battery: 步骤 4 中的图像 1，1

    • Use the T5 head on the iFixit screwdriver to unscrew the four screws on the back of the watch’s face.

    编辑

  6. Polar M400 Watch Battery Replacement: 步骤 5 中的图像 1，2 Polar M400 Watch Battery Replacement: 步骤 5 中的图像 2，2

    • Gently remove the backing from the watch.

    编辑

  7. Polar M400 Watch Battery Replacement: 步骤 6 中的图像 1，2 Polar M400 Watch Battery Replacement: 步骤 6 中的图像 2，2

    • Use tweezers to gently pry the golden sensor away from the battery.

    • Remove battery using the plastic opening tools.

    编辑
结论

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

15等其他人完成本指南。

作者

与2其他贡献者

Nicholas Sanders

于09/28/17注册

513 声望

创作了2篇指南

徽章: 10

+ 7更多徽章

团队

University of Maine, Team S1-G3, Diaz Fall 2017 University of Maine, Team S1-G3, Diaz Fall 2017 的会员

UMAINE-DIAZ-F17S1G3

4 名成员

创作了7篇指南

25条评论

Hello, thanks for the details !

The most tricky part: find the right spare part. I can’t find a replacement battery that could fit the original dimensions with reasonnable capacity.

Do you have any lead?

Vincent - 回复

In case if anyone is still looking for the spare part I have just replaced my M400 battery with this one: https://www.aliexpress.com/item/10050045...
Replacement instructions were detailed enough to get my watch to work again.

Roman -

Bonjour

Pourriez-vous m’indiquer ou je peux acheter une batterie compatible ou originale

Merci à vous

ducellier - 回复

where can i buy a batery for my polar m400? Link please. Thanks

lsmi_21 - 回复

Once the battery is changed, the M400 does not work. Do you have to press any combination of keys?

lojobis - 回复

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