[time-nuts] Lead acid battery noise levels

[Chris Albertson]

I did read about this once but with smaller batteries.  I think the noise
is mostly equal the internal resistance of the battery.  So an AA cell
might be noisy but a 100AH might have a lot less internal resistance.

I have this page bookmarked.  My application is audio recording studio
equipment, they car a lot about noise too.
regulators_noise4_e.html<http://www.tnt-audio.com/clinica/regulators_noise4_e.html>


On Mon, Jul 8, 2013 at 8:52 PM, Mark Spencer <mspencer12345 at yahoo.ca> wrote:

> Hello, I've just reviewed the thread from earlier this year regarding low
> noise power supplies and some related information about the noise levels of
> certain batteries.    Has anyone ever come across any data pertaining to
> the noise levels of common gelled lead acid storage batteries ?
>
> I recently discovered the HP bench supply I've been powering one of my
> OCXO's from is slightly affected  by AC line transients, so I've been
> running one of my OCXO's from a bank of 100 amp hour gelled lead acid
> batteries.   Apart from the lack of glitches due to line transients, the
> performance of the OCXO appears to be better.  Before I embark on a quest
> for a very low noise power supply (or contemplate building one) I'd be
> curious in knowing roughly what the typical noise specs for the batteries
> are.
>
> I did find some comments on an audiophile forum that indicated that gel
> cell batteries are not known for low noise levels (:
>
> Best regards Mark Spencer
>
> _______________________________________________
> time-nuts mailing list -- time-nuts at febo.com
> To unsubscribe, go to
> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.
>



-- 

Chris Albertson
Redondo Beach, California