“You probably know those onboard testers found on Energizer and Duracell batteries.. press the two white dots printed on the wrapper, and magically the battery’s state appears on a yellow bar. No need for a separate battery tester, everything is included on the battery itself. While not very precise, it’s good enough to know if a battery is brand new, so-so, or completely dead.” [ Read more ]
Turning an AA on-battery tester into a CPU load monitor for Linux
