User manual
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The voltage distributor, comprising of R2 and D2, as well as the basic resistor R4,
can be changed as well. This changes the constant charging current. You can thus
rst experiment with R4, i.e. replace the 1 kΩ-resistor (R4) with the 2.2 kΩ-resistor
of the learning package, to get a lower charging current for the rechargeable
battery.
Fig. 031: Circuit diagram of the constant current charger