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Battery: Powered Lights

Portable Cell-Phone Battery Charger
2 Comments - in Telephone
A very clever portable cell phone battery charger that uses 8x1.5 AA cells (batteries) to charge cell-phone / mobile phone batteries while mobile. No more need for a mains outlet!
Photo: Traffic Lights Kit / Circuit Traffic Lights Kit / Circuit
The Traffic Lights circuit performs actions just like those of a real traffic light system, switching between red, amber & green.
Photo: Solar Battery Solar Battery
Teaches the fundamentals of a basic robotic sensing and locomotion principles while testing motor skills. Includes 5 switch wires controller to grab, release, lift, lower, rotate wrist, and pivot sideways 120°. Transparent arm shows the state-of-the-ar
Photo: Sequential Flasher 5 LED Sequential Flasher 5 LED
The circuit flashes five LED's in sequence repeatedly until you turn it off. Flash rate is user adjustable. The circuit uses an IC chip on Board which you will then mount on the included mother board; battery holder is included. Powered by a 3 volt supply
Photo: Oscillator Building Blocks Electronic Kits Oscillator Building Blocks Electronic Kits
An educational learning module. Build and experiment with the astable, monostable and RS flip-flop multivibrators on one PC board with six LED's. Understand exactly how each one works. Operates on a 9 Volt battery.
Photo: Analog Multimeter Kit Analog Multimeter Kit
Old time style with the following options: 20,000 ohm/Volts, 19 Ranges, 3.5 Meter, dB Scales, Audible Continuity, Battery Tester, 10A DC Current.