Conrad Course material 10127 14 years and over 10127 Manual De Usuario

The most common battery types used in everyday life:
1.  Lead batteries (lead acid, lead gel), e.g. starter battery in the car.
2.  Nickel cadmium (NiCd; no longer being sold), often used in cordless screwdri-

vers.

3.  Nickel metal hydride (NiMH)
4.  Nickel zinc (NiZn; new on the market)
5.  Lithium (Li) in very different designs
The lead battery is familiar from cars as „starter battery“. This battery type is cost-

efficient, long-term stable but heavy. Referring to its weight it only has a low energy 

content. Lead is a heavy metal. Old rechargeable batteries must be returned and 

are then recycled.
Battery types 2 to 5 are the object of the following experiments. Although the 

nickel-cadmium battery is no longer sold, the long service life of this battery type 

means that there are still many of it in use.
The experiments practically explain the different charging procedures and what to 

observe during them.

Experimenting setup: Solar module, alligator clamps, 2 red LEDs 
The learning package includes two red LEDs that are hardly distinguishable from 

the outside. To find out which one is the flashing LED and which one the „regular“ 

one, you can perform the following simple experiment with the alligator cables and 

the solar module: Connect the alligator cable and clamps to the connection wires 

of the solar module, red to red and black to black. Then connect the red alligator 

clamp to the longer connection wire of one of the red LEDs and the black one to 

the shorter connection wire. If light falls onto the solar module, you can see that 

the connected LED either flashes or stays lit.