I've gotten a bit fed up with the rate at which my HRM gets through CR2032 cells, buying a blister pack of the things is fine, but inevitably you get to the end of your supply and end up doing a ride or two without being able to log any HR data because you haven't got a battery, or the time to swing by a shop and buy yet more...
So I thought I'd have a look and discovered that yes you can get rechargeable 2032 cells and chargers, next question is, are these things actually any good or not?
Anyone used them?
Are worth it?
what HR monitor is it? I've only changed the one in my topeak bluetooth one once in 18 months?
What he said, my garmin one lasts about 18 month, the cadence sensor 6 months to a year depending on use.
It's a cheap [i]"i-Got U"[/i] BT smart HRM, I'm sure it's not very efficient with the leccy juice, it doesn't appear to have a 'sleep' function of any sort, and no off switch so I just remove the cell between uses at the minute...
The original battery lasted almost 2 months, then I had a batch of cheap crap ones that all lasted just days, and I've just taken out a branded 'energiser' one that lasted a month and a half, I've got one more of those left from that pack (if I can find it), and then I'll be needing more batteries, this is all with me "managing" consumption by removing the cells between uses...
So is it the quality of the cells, or the device, or a bit of both?
Seeing as I've found the single use cells are a bit hit and miss in terms of life I'm quite tempted by some sort of rechargeable power source.
Next HRM I buy, I'll certainly consider the power/charging side of things a bit more, but this unit was bought because it was a dirt cheap (£18) way of trying an HRM out and it works wit my (android) phone and Strava...