I wonder how many years?
> The battery lasts for up to years of average use.
...how many?
> a battery that lasts for years
How many years does the battery last?
> That’s up to 2 years of usage.
Ah.
I guess "2" is the absolute minimum that you could describe as "years".
It's a shame because it does look like an interesting proposition. It might be more compelling if it was "send your ring back to us for recycling - and we'll send you a new one". I doubt the economics would work at this price point though.
