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Do you find battery supplies inferior to well designed power supplies?

I have to ask, because every single battery powered unit or battery supply I have ever tried sounded great for the first few tracks, then focus gets blurry and things sound lost. This has happened with every single battery powered audio device I have tried. All of these devices are regulated as well, and really kind of have to be, but I just never got the consistency that I get with Linear Supplies and or well designed switch mode supplies, for example.

Fresh charge, sounds great, play awhile, things get lost. This is battery powered DAC’s, Hubs, Battery Power Supplies with SuperCaps, etc. I only have experience with digital products using batteries, which is why I posted this in Digital forum.

Look forward to your experiences and thoughts!
paul79
williewonka
3,082 posts
 
Battery supplies are no different from mains supplies when it comes to being able to provide sufficient "power" to handle the most demanding transient spikes.

Where battery supplies tend to fail is in theri ability to deliver enough current.

If they are unable to provide enough current to handle those spikes then the voltage will drop and your SQ will suffer.

If you are contemplating a battery power supply it is always prudent to  use a bigger "battery" than you anticipate you will need.

Connecting batteries in parallel will ensure they can deliver the required current.

Regards...
zuio's avatar
zuio
96 posts
 
Even with low power devices like dacs and preamps, batteries are lacking dynamics. But the capacitor concept of vinnierossi lio sounds interesting 
georgehifi's avatar
georgehifi
10,312 posts
 

paul79

Do you find battery supplies inferior to well designed power supplies?

I have to ask, because every single battery powered unit or battery supply I have ever tried sounded great for the first few tracks, then focus gets blurry and things sound lost.

Batteries that have a amperage capabilities should always be better than any made up mains powered supply.

There is only one reason I can think that yours did what you said, is if their were no voltage regulators after the batteries and the after a few hours the voltage dropped and as a result so did the circuit ideal operating parameters.

Cheers George
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