I have lots of used Li-Ion 18650s. I want to test their capacity.
There are however 2 important parameters that I cannot find anywhere which is amperage and cut off voltage. Some people use 500mA some people use 1000mA. Some discharge to 3.0V some do that up to 2.8V.
Depending on which parameters you choose you will get different capacity. Since capacity is defined for cells it's calculation must adhere to some standards for these parameters.
To wrap it up - what is the amperage and ending voltage for capacity measuring for single 18650 cell?