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Gregory said:When you charge a Cap do you charge it with 25 V DC with a low current say 1 Amp.
Testing a 250 V cap 220 uf
If I only have a DMM do I have to insert a Resistor in series to read the voltage. If the voltage is high.
Yes Hero999, I got a point . ThanksHero999 said:Charge the capacitor with the voltage you intend to run it at.
Connect a large series resistor, measure the voltage across it and calculate the current using Ohm's law.
You could actually use a multimeter as the series resistance. If you know the input impedance then calculating the current is easy.
Also note that the leakage current depends on the voltage you charge it to. You can build a circuit that does all of this automatically if you like but you need some way of providing a suitable variable voltage possibly as wide as 3 to 500V depending on what you want to do.