The Polar H10 uses a CR2025 battery. I used a CR2032 with mine for a while and had dropouts. Changing to the correct battery solved the problem for me.
Yes! Iām done paying for premium heart rate monitors that only last a couple of seasons.
Iāve been having this issue with the H10- hoping a new strap will improve things. Did this ever work for you?
I commented on the article too, but i have two different model $25 Coospoās that have had no problems for 4+ years now. I rarely recommend things of Amazon or Ali Express, but this brand has honestly worked better for me and lasted longer than many of the bigger brands.
I didnāt try tbh. I was already tired of buying coin-cell batteries for my HRM and the mis-reading of the HRM just frustrated me enough to be done with it.
Something I hadnāt realised is that the standard Polar strap is a bit overbuilt for my preference as well. The Trackr strap is much simpler with less structure and I find it more comfortable as a result. If youāre considering a different strap for the H10 you may find the same.
1 Like
The textile part of the Polar strap never lasted for more than about two years in my use, the connection between the snap and the electrode would become unreliable at some point. The new style strap that came with the H10 hasnāt failed but thatās because I have barely used it (the plastic clasp seems like it will fail at some point for one thing), instead I switched to Coospo/whatever generic textile straps already maybe 6 years ago and I donāt think I have had one fail yet (more choice in colour too).
the cheapest from decathlon. 30ā¬. has been running without any issues for a long time. and they even have a replacement stato for 9ā¬
My Polar H10 eats through batteries like Tic Tacsā¦..
Same like every few weeks
1 Like
My Tickr strap died too, so I use it on an old Garmin strap 
The only problem with the Tickr is that sometimes it will just flatten a battery in no time. I rinse it after every use, and I think sometimes it stays awake. Need to remove it from the strap and dry it off I think to be sure.
My Garmin transmitter also worked OK but it was much more fiddly to change the battery with 4 tiny screws compared to the Tickrās mechanism.
This absolutely happensā¦.i usually have my HR straps on a towel bar in our bathroom. Many nights I have walked in there in the middle of the night to find my Tickr LED lights flashing.
I always detach the HRM from my chest strap after a ride so that I can avoid the ācircuitā being completed somehow so that HRM draws power. The downside is that, yes, on two occasions have gone out on rides and forget to attach the HRM. Iām currently searching for someone willing to take blame for that.
2 Likes
The magic trick is to detach just one of the two snaps.
Another very happy Coospo user here. Iāve had two of their HR units for too many years to remember. Mine have the snap-on connectors and generic straps, of which I have four, are cheap and easy to source. Replaceable coin cell batteries that seam to last forever. Connects quickly to Garmin watch, head unit, Zwift etc.
Iād buy another without hesitation.
Iād not recommend doing this but one of my units has also happily survived being put through a washing machine cycle after I forgot to unclip it from the strap 
1 Like