Why not batteries instead of power supplies?

I read about issues with power supplies, like noise from AC outlets, ripples in voltage etc.

Why not just use a large battery that can be recharged? If batteries can power cars, they can for sure power amplifiers.

defiantboomerang10-07-2017 4:37pm

Showing 3 responses by defiantboomerang

defiantboomerang OP Details Discussions Posts This discussion Message User 141 posts 10-07-2017 at 05:35pm Copy Comment URL Report Comment Edit Delete @geoffkait I knew that AC could be a problem. Is there a way to hook up an amplifier to a battery pack and avoid AC altogether?
defiantboomerang OP Details Discussions Posts This discussion Message User 141 posts 10-07-2017 at 11:46pm Copy Comment URL Report Comment Edit Delete @erik_squires This is fascinating stuff. I must admit that I don’t understand the link between output impedance of batteries and more cross talk and dynamic range. You clearly know this stuff inside out. if you could give me a pointer or two to help me get it I would be totally grateful.
defiantboomerang OP Details Discussions Posts This discussion Message User 141 posts 10-08-2017 at 12:21am Copy Comment URL Report Comment Edit Delete @erik_squires Awesome explanation, many thanks. I think I am beginning to get it.

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