Question about Polar F11 Heart Rate Monitor

1 Answer

Can not change battery on Polar chest strap

My Polar chest strap provides "easy" access to change the battery.  The problem is the little indention intended for a coin or screw driver is a bit stripped.  I can not get the cover to budge.  Are there any tricks for getting it unscrewed?  
Thanks, Gil

Posted by on

  • gil_jones Jan 26, 2009

    I think your suggestion is going to work.  Thanks for the fix!

×

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 2,334 Answers

Yes, there are a few.
1) As you may noticed, coin and even screwdriver blades are never sharp, but mostly blunt. So, sharpen the edge of the coin on a piece of sandpaper. Get hardened steel screwdriver or very sharp, pointed end file and scrape that indention (groove) to make sure the channel have straight sides, forming I_I shaped groove, but not V shaped groove. When done, insert the sharpened coin and unscrew the battery cover using some pressure as well.
2) In case if the groove is stripped completely, you will have to drill two small holes into the battery cover. Drill them 1mm from the battery cover's edge on opposite sides. Depth of holes should be 0.5 mm. Do not drill through completely. For drilling use 0.3-0.5 mm diameter drill bit.
When finished with both holes, take hardened tweezers, insert each arm into separate hole and unscrew the battery cover.
Do not forget to rate, please.

Posted on Jan 25, 2009

  • Arturs Kalnins
    Arturs Kalnins Jan 26, 2009

    Can you rate, please, by ticking the appropriate cube?
    Thanks.


×

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Chest strap stopped working


This can be caused by a number of factors from dead battery to lost signal. I have on my tips and tricks page a checklist for HR signals and causes for disruption.

If it is the Battery then...

#1 - Hard strap, only remedy is too replace, batteries are sealed in.

#2 - Soft strap (wearlink), these have a replaceable battery 2025 and you can do this yourself.

Apr 01, 2011 | Polar Heart Rate Monitors

1 Answer

I have a Polar F11 Heart Rate Monitor. The watch won't pick up the heart rate from the sender (00 is displayed), but my heart rate shows on a Polar enabled Gym machine, e.g. xtrainer. I've changed the...


There is a step by step guide in my tips and tricks of things to try with your strap. If none of these work and you are getting a signal from another source then you need to get either a new strap, a new sender or both. If you send the T-31 wearlink into polar they can run a diagnostic and see which is bad and sell you just the piece you need or a whole new chest piece.

Dec 15, 2010 | Polar F11 Heart Rate Monitor

1 Answer

Polar t31 manual, heart monitor \ need manual


Please go to my tips and tricks page, there is a link to download the manual for all polar products.

Here is the direct link to the F11 in english. If you need in another language than follow the link at my tips and tricks page.

The T31 is the chest strap. The F11 comes with the T31-Wearlink (soft strap) the T31 is a hard strap. different user manuals. The manual you want is listed as (wearlink 31 coded transmitter)

Dec 15, 2010 | Polar F11 Heart Rate Monitor

1 Answer

How do i reset and work my polar t31? I have lost instructions and it is 2 years since I last used it


There is no reset on the T-31 chest straps and transmitters. If the battery is functioning then you simply put it around your chest (make sure the contacts are wet) and turn on the watch. A heart rate signal should appear automatically.

If this doesn't work, I have solutions in my tips and tricks page as well as Manuals for Polar products. The T-31 battery may also be dead, in which case you will need to replace.

The picture you have showing is for a S-Series Speed sensor for the Bike. If this is something you are having a problem with feel free to send me a note related to the problem.

Dec 14, 2010 | Polar T31 Transmitter and Belt Set

1 Answer

My heart rate monitor keeps stopping picking up my heart rate (reading of 00 or --), i have changed the battery in the chest strap, not difference, any ideas?


Click on my profile (escapement), then click on Tips and Tricks. There you will find link to all POLAR watch manuals. Rate me, please.

Mar 03, 2010 | Polar F11 Heart Rate Monitor

1 Answer

Watch won't read heart rate


It could be the battery on the strap is not good. However just to be sure make sure you are wetting the strap and it is around chest, front should sit right about on the bottom of pectoral or chest, if you are female make sure it is under your sports bra the bra band will be over it. I would start warming up then hit the start button it should work.

Feb 06, 2009 | Polar M61 Heart Rate Monitor Watch HRM M61

1 Answer

My Polar HR monitor ce0537 do not pickup Hart rate


Had the same problem. Just figured it out. The center Polar Logo on the strap needs to touch your chest in a firm way. Bend it back slightly so it fits snug on the middle of your chest.

Jan 31, 2009 | Polar S410 Heart Rate Monitor

2 Answers

How to change the battery on a Polar F11 Heart Monitor


Here are instructions (with images included) on how to replace the battery for a Polar F11: http://timlaqua.com/2008/09/how-to-replace-the-battery-in-a-polar-f11-heart-rate-monitor-hrm/

Jan 11, 2009 | Polar F11 Heart Rate Monitor

2 Answers

Polar F11 not responding


I' advise to start with battery check. If the battery is ok, then you will need a professional to find the cause of malfunction.

Dec 19, 2008 | Polar F11 Heart Rate Monitor

Not finding what you are looking for?
Polar F11 Heart Rate Monitor Logo

1,246 people viewed this question

Ask a Question

Usually answered in minutes!

Top Polar Heart Rate Monitors Experts

Les Dickinson
Les Dickinson

Level 3 Expert

18298 Answers

buzz flewhart
buzz flewhart

Level 3 Expert

655 Answers

Iron
Iron

Level 3 Expert

3018 Answers

Are you a Polar Heart Rate Monitor Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...