On 10 Jun 2016, at 03:28, Richard Aiken <xxxxxx@gmail.com> wrote:

> The micro thingies are a separate item from the knee brace.
> The brace generates 5 regular-size watts.

As far as I can find, you use something like 200-300 watts whilst walking (depends on weight and speed) and about 70-100W just standing still, so 5-10W would be a noticeable addition.

All info vaguely remembered from Qi episodes and, if you're lucky, checked on Wikipedia.
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