When you connect a capacitor to a battery and the capacitor is charged to the batteries voltage. Is there any power consumed from the battery if it remains connected to the capacitor?
Also from what I read , the leakage amount depends on the type of capacitor with Electrolytics at highest and Film or ceramic (don't remember which one) with the lowest
An "ideal" capacitor has no leakage. A real capacitor has very little DC leakage, so little it could be hard to measure, and it's usually not considered a factor.
An "ideal" capacitor has no leakage. A real capacitor has very little DC leakage, so little it could be hard to measure, and it's usually not considered a factor.
The leakage for a typical aluminum electrolytic is in the low microamp range, depending upon voltage and size, so even those shouldn't significantly affect battery life, expect perhaps for small button cell types.