Now I am coming back to some real examples we can see in the electronic world. Regarding to portable e-devices such as Laptop or Mobile phone, the question is how it can show us the current state of battery capacity on percent columm. What element is real-time measured and What equation is used to do the performance. To my best understanding, they can use Peukert's equation if the battery is Lithium because the Voltage would be stable at a constant value until current is dropped off. But What can we do if it is NiNM/NiCd since its voltage is not stable?
Please clear me up for the questions mentioned above.
Cheers,
Odense