Why not just have them place the devices on a wireless charging system like 
the *Powermat*™?

Then will charge while sitting around.

Thanks.



On Thursday, April 11, 2013 9:11:39 AM UTC-5, plnelson wrote:
>
>
>
> On Wednesday, April 10, 2013 4:26:21 PM UTC-4, mike digioia wrote:
>>
>> What are you trying to do? If you want to measure power using wifi, then 
>> just subtract the screen power consumption numbers after two tests - one 
>> with screen in flight mode and one with wifi on.
>>
>
> Why do you think we're trying to measure power?  
>
> As I explained above, these devices are used to control an industrial 
> process.  There are typically many of them out on the factory floor and 
> users can pick them up and operate them, but even when a user isn't 
> interacting with them the server still is.   I want the display to go off 
> because on a typical device that's the biggest battery hog - if the display 
> stays off when not in use we can an get an 8-hour factory shift on one 
> charge.
>

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