A pushbutton on/off controller with failsafe voltage monitoring is described.
Pushbutton on/off controller
To save space and provide longer battery run times, many high performance notebook computers support dual, swappable batteries, where each battery bay can hold a battery or an optional peripheral. Two batteries are obviously better than one, providing increased run time over a single battery, but how much better are they? The answer is that two batteries can produce performance that is better than twice that of a single battery. The trick lies in simultaneously charging ...