Have you changed which sensor radios are active via the Plar Beat App or trued a factory reset. With just a single Bluetooth radio active you should be looking at around 400 hours of use between battery changes.
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same -blowing through batteries, My K2 says they are half dead already when I install one.
bought them in bulk off Amazon - sometime will have to buy some fresh batteries and try them
also I now disconnect the pod, but with half dead batteries I haven’t notice a big difference… I get about 10 hours of wear time or so … again with super bulk cheap batteries
Now the question for me is where to get batteries that aren’t near the end of their shelf life when I get them.
I’ve not tried a factory reset yet, didn’t know that was an option. I’ll have to have a look for how to do it.
Only thing I can think of beyond that is flat out removing the battery every time, but that’ll get annoying with the pairing etc.
https://support.polar.com/en/how-can-i-reset-my-sensor
I’ll have to bear that in mind if I ever have a problem with mine.
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I usually get about 2 months from my H10 batteries. Seems kinda short, but when you figure Im using it around an hour-1.5 a day, 6-7 days a week, I guess thats really not that bad?
You mention 2032s, but the H10 uses 2025s.
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I use my H10 for 4-6 hours per week. With the CR2025s, I’ve been on 1 battery for many months. I think my first swap was after about 6 months, maybe more.
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Me too. I just checked the difference between a 2025 and 2032 is the thickness (2.5mm vs 3.2mm) both have the same 20mm diameter and voltage
I use the CO2032’s too and I must admit I never realised Polar suggests 2025’s. Everything I have/ had take 2032’s and its more handy to have a pack of them anyway. I’ve had older 2032 HRMs where I have had to gently prise up the contacts with a screw driver to maintain a connection; hopefully with the 2032’s being marginally thicker I won’t need to do that with the H10.
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I wonder why they opted for the 2025 in the first place then…
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I have used CR2032 after my first battery swap with no ill effects.
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@kpedal
My H10 recently started going through batteries quite quickly as well - they would last about a week, where previously they would last months.
I sent my unit back to Polar, and they replaced it under warranty (2 year warranty in USA).
The paper returned with the unit said ‘failed firmware update’, with no further information.
So far the new one seems to be working fine.
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I forget when I replaced my battery last (it might have been late summer/early autumn but it came up on the edge the other day and on last nights workout it dropped for a second or less a few times so I replaced it today. I think I got 3-5months out of the last Energiser CR2032.
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Just got a Garmin Pro. Night and day better than my H10. The design flaw of the H10, avoided by the Garmin, is the snapper buttons which I found needed regular deep cleaning to get sensible results. I had the same problem with a Wahoo Tickr, which shares that design flaw. Garmin is sealed. Zero problems.
Ive not found that an issue with the H10 nor other straps of that type, I did find it a significant issue with my TickR though. It was only a few weeks old when it stopped working before I cleaned the electrical rust. The Garmin Pro looks good though 
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It is - have sweated like a beast all over mine and not a whimper from it. I like that it is also aimed at swimming and recommends you wash it frequently - they are clearly confident in how tight it is. The Tickr was utter garbage (from a fan of other Wahoo products). Maybe with the H10 I’ve been unlucky or am too lazy to clean it thoroughly but when something is designed to be sweated heavily on I would expect it not to require such regular deep cleaning.
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Yeah my H10 is going on a more than year with no button corrosion. Can’t say a Tickr ever got that long.
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I got into the habit of taking off my H10 after my workout and hang the strap on the water faucet in the shower. After my shower, a rinse of the strap and leave it hanging to dry. I do that at least 5 days per week and the strap is holding strong after 24 months.
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What kind of battery life are folks getting from their H10? I’ve had mine for a month and the battery is reading at 10% in TR. I’ve probably got 40 hrs of riding with it.
I was used to my prior Garmin strap…I think I changed the battery in that annually. The Garmin seemed to turn off or go into a sleep mode when not being used. It would take a second or 2 once wearing it for it to be visible to my devices. The Polar is always visible in TR, even when not being worn. Is that normal?
Thanks!!
