The circuit charges a large capacitor which provides the higher current pulses needed to drive the clock’s mechanism. It can power the clock from a single AA battery, and will run until the ...

The circuit charges a large capacitor which provides the higher current pulses needed to drive the clock’s mechanism. It can power the clock from a single AA battery, and will run until the ...

When you drop a battery into the top of it, an optical proximity sensor on the PCB triggers the micro servo to pivot up, accept the AA battery, and rotate to place it in the charging mechanism ...

No longer do you have to be ashamed of your AA batteries, hiding them inside or behind your wall clock.Embrace their diminutive power and put them on show to the world. Spotted at the 2010 DMY ...

Instead of hiding them ashamedly around the back or behind a modest little door, this clock instead displays its batteries out front, proudly putting the double-As in place of hands. The cells fit ...