Capacitor question

[Brandon Bender]

I am going to switch out my amp with a new one because I believe one of the channels are dying. My question is, I have a capacitor and I was curious if I disconnect the battery, will my cap lose its charge? The reason I ask is because when I did disconnect the battery, the cap began a count down sequence from the charge it had so I connected the battery back right away. If it doesn't lose its charge, how long do I have before it will? Appreciate any and all suggestions 

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[keep_hope_alive Premium Member]

disconnect the cap and you can store it charged (if you insulate the terminals and be careful). 

most caps come with a discharge circuit (and a charge circuit). 

A cap can hold a charge for months.

 

[Dragonsyph]

What kind of caps? Depending on brand and size they can keep there charge for weeks to years.