Here is a good video that shows he slot antenna effect and how some cheap
aluminum tape can fix it up for a massive improvement in shielding.

https://www.youtube.com/watch?v=y3S2KDuVxaU

On Wed, Jan 27, 2016 at 12:20 PM, 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".
>>>
>>
>>
>

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