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

Test setup: USB cable, plug board, 1 resistor 1.5 Ω, 2 resistors 1 kΩ, 1 resistor 

1.2 Ω, LED orange, Schottky diode BAT 42, battery holder, rechargeable battery 

mignon AA or micro AAA 
Constant current charging is a wide-spread way of charging rechargeable batteries 

in simple chargers. Depending on the battery capacity, the flat rechargeable 

battery is charged for a defined time with constant current.
 

Fig. 028: Charging recommendation for one rechargeable battery: Constant 

current charge

The charging recommendation printed on the rechargeable battery indicates the 

period and current at which it is to be charged. At a simple constant current charge 

of a rechargeable battery, it is the common practice to charge it at 1/10 of the 

current of the capacity indication for 14 hours. 

Example 
Battery capacity: 800 mAh, charging current: 80 mA, charging time: 

14 hours. When the 14 hours of charging time are over, there is the option of 

time-controlled electronics switching to maintenance charge. The charge 

maintenance can take place with 1/20 of the battery capacity or less, i.e. at 

40 mA or less.