Hi all, I recently got an idea/problem concerning the use of supercapacitor and battery.
I have a system wich will be powered by a high capacity battery. Its capacity is dependent on the current you draw from it, so I'd like to keep it as stable as possible: since my system consumes ~20mA I'd like to charge a supercapacitor previously for some time so the current drawn from the battery is lower (~5mA or less).
The problem is that the system is, most of the time, in idle/sleeping and its consumption current should be less than 1ÂµA and since the supercapacitor draws ~8ÂµA of current I'd like to disconnect it as soon as the system gos into 'sleep state'.
I'm using an AVR in deep sleep mode.
Is this feasible?
Is it even a good idea?
The whole point is to achieve the maximum working time from the battery.