«We had pretty good hints from previous work on what was likely to work, and carried out lots of tests on them,» he says. (newscientist.com)
But, after lots of testing, I see there are tons of flaws with the system. (bootdiskrevolution.com)
With constant alerts for rings and motion detection (and motion detection set to maximum), plus lots of test of the live video, we found the battery lasted around two weeks. (zdnet.com)