I have looked everywhere for some guidance trying to measure resistance of 18650. What i found is use a resistor in series with the 18650. Is this correct ? Take the voltage of battery only then voltage and resistor measure that then some formula and that gives the actual battery resistance.
My question is, is this correct and is there a way to use a multimeter only and not use a resistor ? also what value resistor is needed ? 4 ohm or 5 ohm or what is best for a 18650.
Appreciated.