Bob, the products they make available are not to be compared with consumer end-products. It's a limited batch of prototypes. For such a test batch 1 year of guarantee is not too bad.
I agree that the term 'never dying battery' is probably wrong for these test products, since the electret module is combined with a lithium ion battery which we all know lasts only 300 - 1000 charge cycles. It could be combined with supercapacitors which would fit the term a bit better. The upcoming months will show how real their demo products are. On Wed, Jan 27, 2016 at 12:20 AM, Bob Higgins <[email protected]> wrote: > It only has a 1 year guarantee. So, perpetual charging is not > guaranteed. Seems like that if you were going to make the claim that it > NEVER needs charging, then you should at least offer a 10 year guarantee so > as to make it better than the best lithium battery. Reality is that even > if the electret is a perpetual source, the internal lithium battery charge > buffer will not be. > > On Tue, Jan 26, 2016 at 3:56 PM, Eric Walker <[email protected]> > wrote: > >> On Tue, Jan 26, 2016 at 4:36 PM, Esa J. Ruoho <[email protected]> wrote: >> >> "Never charge battery". >>> >> >> >
