Question about Polar S150 Heart Rate Monitor

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Battery replacement I changed the battery on my Polar CE0357 and get a bunch of digital junk displayed all over the screen. Replaced with a DL2025 3v watch battery

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Mine had a Panasonic CR2205 battery in it. I replaced it and Voila!

There is a funky clip holding the battery in place. I used a tiny flat head screw driver and put it in the side where it looked like it fit and the clip popped off enabling me to free the battery.

Happy aerobics!

Posted on Feb 14, 2013


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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

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Posted on Jan 02, 2017

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SOURCE: how do I change a battery on polar monitor F6

Open Caseback. Unclip the contact. Replace battery, clip contact back and put the caseback on.

Posted on Mar 23, 2009

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SOURCE: Error after changing battery in polar watch

Follow this link:

This is original Polar support site.Here you will find all the info available.

Rate me, please.

Posted on Mar 28, 2009

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SOURCE: how to replace battery in polar f4 watch


Posted on Nov 28, 2009

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SOURCE: fading LCD display on Polar F11

I have this problem as well! I was just googling this problem when I found your post. I have the exact same watch and have had it for 2 years. I don't expose it to the sun or heat though.

Posted on Feb 20, 2010

  • 1 Answer

SOURCE: Polar F6 - Battery replaced, display corrupt after watch loads.

I had the same problem. Replaced the battery very carefully; Test display came on; As soon as I pressed a button the egg timer came on and the display was corrupted and barely visible.

I tried the solution recommended by banjodoug. I also clipped the metal cage back on differently - I pressed the clips in diagonally starting with the corner of the battery contact underneath (this lifts up the circuit board in the corner very slightly). Clipping it diagonally this way seemed to seat the circuit board and display better.

Hey presto, the test display came on...I waiting few more seconds and the time came on.

It seems to be working fine now.

Posted on Nov 07, 2010

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Yes! that is very possible, screws in some area's are critical. The battery that was replaced may have been not up to power, either way it must be dis-assembled to find out.

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I changed my wife's Polar F11 HRM watch battery. When I replaced the battery the entire screen lit up, everything. I let it sit for a few minutes and the normal screen came up. Kind of like it was "booting...

Try resetting. From the manual, "if there are no reactions to any buttons, reset the wrist unit by pressing all the buttons simultaneously for two seconds. All other settings but time and date are saved."

Is it possible the watch block is not in correctly and the display is getting squished?

Aug 03, 2010 | Polar F11 Heart Rate Monitor

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I have this problem as well! I was just googling this problem when I found your post. I have the exact same watch and have had it for 2 years. I don't expose it to the sun or heat though.

Jun 13, 2009 | Polar F11 Heart Rate Monitor

2 Answers

Display will not stay on. Displays error 16.

Before you try to change the battery:

Paste this link into your browser and download manual:

This manual helped a lot to other Polar users.

Do not forget to rate, please.

Mar 23, 2009 | Polar F11 Heart Rate Monitor

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Polar F11 ''Scrambled/Smudged'' Display

You have to replace the battery with the new one. In most cases underpowered battery causes faded or even disappearing digits on LCD unless your watch has been damaged by water. Find your nearest watch repair shop or do it yourself. Do not forget to rate, please.

Jan 21, 2009 | Polar F11 Heart Rate Monitor

1 Answer

Polar ce0537 watch screen goes blank or changes time and settings. reset the watch ad it happens again within twelve hours or less.polar heart rate monitor.

Have you had the battery tested? Try that, and we will go from there.Let me know, I can help you it just takes curtain steps to make sure we don't go through a bunch of things we don't have to in correcting this problem.

Aug 12, 2008 | Polar Watches

1 Answer

Polar F6


It sounds like most of you have the heart rate set to display in % of max heart rate. Most Polar products have the option of heart rate in BPM(beats per minute) or percentage of max.

If you look at the display during the exercise, you will see a % icon. You can turn it off in by hitting the back button and go down to HR view settings.

Hope this helps.

Chris @ Polar USA

Aug 02, 2008 | Polar F6 Wrist Watch

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