I have a very simple question to ask about charging capacitors and no matter what I put into the Google search bar it will not explain it. If I have a capacitor rated at 16 volts. If I put a continuous 9v supply into it will it store 9v or will it combine and eventually charge to its full capacity. What about an 18v supply? Thank you
The rated voltage of a capacitor is the maximum voltage that it can safely withstand. If you apply a higher-than-rated voltage, the capacitor may be damaged or destroyed, as the dielectric breaks down.
A capacitor can only charge up to the applied voltage - it cannot create more voltage than is applied to it.