batteries?

[mansr]

Regardless of battery technology, you're going to need a regulator which will dominate the characteristics of the power supply.

[mansr]

10 minutes ago, tims said:

Not with this design:

https://www.diyaudio.com/forums/power-supplies/327105-develop-ultra-capacitor-power-supply-lifepo4-battery-power-supply.html#post5540295

Batteries don't supply a constant voltage. Most circuits require a constant supply voltage. Ergo, a regulator is required.

[mansr]

21 minutes ago, Ralf11 said:

I always used a higher voltage battery than needed and regulated it down... not for audio use tho.

Is there any other way?

[mansr]

2 hours ago, Tomslin said:

It’s a generalization. “Batteries don’t supply a constant voltage”, yes. "Requirements for most circuits", yes, but for most devices, no. Therefore, most devices such as usb cards, ethernet cards, ddc, dac etc, can be powered with a voltage in a wider range than as stated as supply voltage. Batteries with voltages that falls within this range therefore work well without a regulator. The reason is that most devices already have built-in regulators, also applies to all motherboards.

You're not making a lot of sense. A regulator internal to the powered device is still a regulator and will be what determines the quality of power supplied to the main circuitry.

[mansr]

1 minute ago, marce said:

They are lipo batteries.

Someone should invent a battery made of fat, if only to confuse the nomenclature.

[mansr]

Of course they'd say that. Maybe they even put some graphene in the batteries. The question is, what is the function of the graphene? There are at least three options:

1. Being part of the actual battery chemistry.
2. Enhancing the electrodes, thereby perhaps allowing smaller/thinner batteries or increasing their lifetime.
3. Allowing them to say there's graphene in the batteries without it being a complete lie.

[mansr]

37 minutes ago, the_doc735 said:

"Of course they'd say that."   So, you're effectively intimating that they are lying by using some sort of technical loophole?

They'd hardly be the first.

[mansr]

3 minutes ago, the_doc735 said:

I'll have those users looked into.  (mansr & marce)

I'm trembling with fear.

[mansr]

6 minutes ago, marce said:

maybe I should report them to the relevant advertising standards

Far too technical for them.