Comments on: How to replace the battery in a Polar F11 Heart Rate Monitor (HRM) http://timlaqua.com/2008/09/how-to-replace-the-battery-in-a-polar-f11-heart-rate-monitor-hrm/ Thoughts and Code from Tim Laqua Tue, 07 Feb 2012 18:34:44 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: j9 http://timlaqua.com/2008/09/how-to-replace-the-battery-in-a-polar-f11-heart-rate-monitor-hrm/comment-page-4/#comment-3467 j9 Tue, 07 Feb 2012 18:34:44 +0000 http://timlaqua.com/?p=47#comment-3467 I can not thank you enough for this post. You just allowed me to replace my battery with a small eye glass screw driver we already had, and a replacement battery we also had on hand. Cost = $0 compared to the $40 I calculated just to send and replace to a polar service shop. That $40 is assuming they didn't "find" any other problems and charge me the full $75 they require as a pre-approval on your credit card. WOW it's crazy how people will just take your money...... so thank you, thank you!! I can not thank you enough for this post. You just allowed me to replace my battery with a small eye glass screw driver we already had, and a replacement battery we also had on hand. Cost = $0 compared to the $40 I calculated just to send and replace to a polar service shop. That $40 is assuming they didn’t “find” any other problems and charge me the full $75 they require as a pre-approval on your credit card. WOW it’s crazy how people will just take your money…… so thank you, thank you!!

]]> By: Scott http://timlaqua.com/2008/09/how-to-replace-the-battery-in-a-polar-f11-heart-rate-monitor-hrm/comment-page-4/#comment-3465 Scott Sun, 05 Feb 2012 02:44:41 +0000 http://timlaqua.com/?p=47#comment-3465 Thank you so much for such brilliant notes and photos. This worked for the "polar fit" style as well. You saved me from wrecking my watch, as well as repair bill. It was good to have a 5/64" flat head to get under the latch as well to flip it up. Watch out that the waterproof seal dorse not get caught in the process of reassembling. Thank you again. Thank you so much for such brilliant notes and photos. This worked for the “polar fit” style as well.
You saved me from wrecking my watch, as well as repair bill.
It was good to have a 5/64″ flat head to get under the latch as well to flip it up.
Watch out that the waterproof seal dorse not get caught in the process of reassembling.
Thank you again.

]]> By: Mark http://timlaqua.com/2008/09/how-to-replace-the-battery-in-a-polar-f11-heart-rate-monitor-hrm/comment-page-4/#comment-3452 Mark Fri, 27 Jan 2012 04:03:26 +0000 http://timlaqua.com/?p=47#comment-3452 Had a similar experience. Since the battery on the watch was dying, I bought a replacement battery and figured I'd do it myself. Certainly didn't look difficult. I believe my first mistake was in taking the internals out of the case. I don't recall doing it intentionally, but I do recall them coming out. After replacing the battery, put everything back in and it appeared fine. Since the strap appeared to be giving a faint signal, I figured the battery on the strap was going as well, so I bought a new T31 coded strap. Nope. Same result. So, either my new strap is a dud (possible but not likely) or the internal antennae on the watch got damaged (more likely). Either way, it appears that I no longer have a functional HRM. While the unit had flaws, I hadn't planned on replacing it yet. Guess I don't have a choice now... Had a similar experience. Since the battery on the watch was dying, I bought a replacement battery and figured I’d do it myself. Certainly didn’t look difficult. I believe my first mistake was in taking the internals out of the case. I don’t recall doing it intentionally, but I do recall them coming out. After replacing the battery, put everything back in and it appeared fine. Since the strap appeared to be giving a faint signal, I figured the battery on the strap was going as well, so I bought a new T31 coded strap. Nope. Same result. So, either my new strap is a dud (possible but not likely) or the internal antennae on the watch got damaged (more likely). Either way, it appears that I no longer have a functional HRM. While the unit had flaws, I hadn’t planned on replacing it yet. Guess I don’t have a choice now…

]]> By: chris http://timlaqua.com/2008/09/how-to-replace-the-battery-in-a-polar-f11-heart-rate-monitor-hrm/comment-page-4/#comment-3447 chris Fri, 20 Jan 2012 22:39:43 +0000 http://timlaqua.com/?p=47#comment-3447 No...unfortunately i could not manage to solve the above problem... The watch shows my heart rate just only it is near the transmitter....when i keep it away from the transmitter it shows no heart rate...!! I sent it to the local service and they said that they must change the whole watch-mechanism....cost of about 80 $.....!!!! Of course i denied this....and i hope that someone from you may have some idea for my problem. I wonder may be there is some kind of synch the watch with the transmitter..?!? or is there any hard reset of the watch...?!? No…unfortunately i could not manage to solve the above problem…
The watch shows my heart rate just only it is near the transmitter….when i keep it away from the transmitter it shows no heart rate…!!
I sent it to the local service and they said that they must change the whole watch-mechanism….cost of about 80 $…..!!!!
Of course i denied this….and i hope that someone from you may have some idea for my problem.
I wonder may be there is some kind of synch the watch with the transmitter..?!?
or is there any hard reset of the watch…?!?

]]> By: Wayne http://timlaqua.com/2008/09/how-to-replace-the-battery-in-a-polar-f11-heart-rate-monitor-hrm/comment-page-4/#comment-3443 Wayne Thu, 19 Jan 2012 12:51:15 +0000 http://timlaqua.com/?p=47#comment-3443 Thanks, great instructions that enabled me to complete the task within a few minutes. The replacement battery cost $4.95 so overall a cost saving of $115.05 from what I was quoted ($120.00) for Polar to do this job. You just need to ensure you have a micro phillips screw driver and a micro flathead screw driver to enable cover to be removed and the old battery to be removed. Thanks Thanks, great instructions that enabled me to complete the task within a few minutes. The replacement battery cost $4.95 so overall a cost saving of $115.05 from what I was quoted ($120.00) for Polar to do this job.

You just need to ensure you have a micro phillips screw driver and a micro flathead screw driver to enable cover to be removed and the old battery to be removed.

Thanks

]]> By: john http://timlaqua.com/2008/09/how-to-replace-the-battery-in-a-polar-f11-heart-rate-monitor-hrm/comment-page-4/#comment-3441 john Fri, 13 Jan 2012 20:46:55 +0000 http://timlaqua.com/?p=47#comment-3441 did you ever find out why your heart rate monitor gave you no reading from a distance because mine is doing the same thing did you ever find out why your heart rate monitor gave you no reading from a distance because mine is doing the same thing

]]> By: chris http://timlaqua.com/2008/09/how-to-replace-the-battery-in-a-polar-f11-heart-rate-monitor-hrm/comment-page-4/#comment-3440 chris Fri, 13 Jan 2012 14:27:52 +0000 http://timlaqua.com/?p=47#comment-3440 brilliant thank you.you saved me the cost of a new unit £70.00 thank you brilliant thank you.you saved me the cost of a new unit £70.00 thank you

]]> By: Eric http://timlaqua.com/2008/09/how-to-replace-the-battery-in-a-polar-f11-heart-rate-monitor-hrm/comment-page-4/#comment-3436 Eric Wed, 11 Jan 2012 14:42:51 +0000 http://timlaqua.com/?p=47#comment-3436 Nice guide! My HRM has been dead for a while and decided to try and change the battery myself after seeing what Polar wanted to charge to send it in. The only problem I had was getting the latch to lock back in place properly. I went ahead and put it together without it being locked down and it seems to be working fine. Guess I won't have to pry it up next time! Nice guide! My HRM has been dead for a while and decided to try and change the battery myself after seeing what Polar wanted to charge to send it in. The only problem I had was getting the latch to lock back in place properly. I went ahead and put it together without it being locked down and it seems to be working fine. Guess I won’t have to pry it up next time!

]]> By: agu35 http://timlaqua.com/2008/09/how-to-replace-the-battery-in-a-polar-f11-heart-rate-monitor-hrm/comment-page-4/#comment-3421 agu35 Tue, 27 Dec 2011 10:01:47 +0000 http://timlaqua.com/?p=47#comment-3421 thank you:D thank you:D

]]> By: Mike Goitein http://timlaqua.com/2008/09/how-to-replace-the-battery-in-a-polar-f11-heart-rate-monitor-hrm/comment-page-4/#comment-3415 Mike Goitein Sun, 18 Dec 2011 23:11:47 +0000 http://timlaqua.com/?p=47#comment-3415 Thanks - Extremely helpful & insightful. Prying the back plate off was a bit dodgy, as was getting it back in, but overall, nothing the home hobbyist couldn't handle. Cheers. Thanks – Extremely helpful & insightful. Prying the back plate off was a bit dodgy, as was getting it back in, but overall, nothing the home hobbyist couldn’t handle. Cheers.

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