This way of charging NiMh or NiCd batteries is not very functional. Why we need a microcontroller to manage charging a battery? The answer is very simple … The most economic charger that on the market, regulate the charge based on a timer, that is if I charge a 2500mAh battery for example, they provide a charging current of 250mAh, keeping the charge for eg 14 hours (a part of the energy will be lost, so 10 hours would not be enough).
And now another interesting little project.Īfter seeing various online projects, especially based on the PIC microcontroller, I decided to make a charger for NiMH batteries driven by an ATtiny85.