Smart power supplies for turntable

I used a VPI frequency generator on my VPI for many years and I believe it to have been a sonic improvement even though my power was very stable. My very best experiences with audio have never come with an eye to reducing cost or saving money. Nothing wrong with that, but $1,200 to enhance the sound with technology often proved is not the path to great sound. 
 

Some of the best sound I have heard Is battery generated.. audio circuits most common… my Aurender Streamer now, I would be pretty unhesitatingly ing trying a battery source. You have occasionally leap to verify you have tried. 

$1200?!

Be careful with the advice so far, I would just about bet the only other one that speaks from experience is kingharold, and he "wouldn’t stake his life" on there being any difference at all. $1200 in my book should be "Yes indeed obviously better now let me list the ways." Everyone else, would love to see them chime in again only this time letting us know what experience it is based on. (Would LOVE to see the guy admit his platter is 1mm off center!🤣🤣🤣)

I’ve run the same motor off AC, battery, and battery connected to and disconnected from charger. Heard distinctly the difference in each case- AC good, battery better, disconnected best of all. This was with a lead acid motorcycle battery on a Teres motor. Roughly equivalent, if not superior, to your CA. Solid experience in other words.

Battery power on my Teres brought a more relaxed nuanced and detailed sound to the music. Dynamics weren’t so much greater but were rendered with a lot more subtle shadings making them more lifelike. No one thing stands out as being different, yet the whole effect is to draw you more into the music. None of this speed stability BS. If people actually tried and heard it they would know. The errors people are talking about - 1mm - are just absurd. By the time you can hear it clearly enough to identify as a speed problem you are already beyond lost. Vintage 35 year old $350 Technics are better than this.

Since your CA is already designed to run on their optional 12VDC supply this means all you have to do is get a 12V lithium battery and charger and wire it up with a switch. Flip the switch to disconnect the charger when playing, flip it back again go charge when done. I was looking into these for my Soundsmith Strain gauge before deciding to go with Rens Heijnis and there are really good lithium battery rigs made for electric bicycles that are compact and already set up with wires and charging circuit. Couple hundred bucks and should be a piece of cake to adapt. Run your rig for days on a charge.

Whether it works better with battery all comes down to implementation.  The CA with active feedback is going to be more immune to supply variance. 

Electric bicycles are typically 24-48V not 12. The nominal 12V lithium vehicle batteries are as high as 14.8 fully charged draining down to 10. A 12.6V LiPo for RC may be more appropriate. You could test it with an 8x AA battery holder and some dollar store batteries.

A large Milwaukee M12 battery would probably run a turntable for 4 hours at least.

Just have two, one in the table the other in the charger. It would require a voltage regulator as cindyment remarked the voltage is anything but stable. It drifts downward as the battery discharges. 

Kingharold, In the context of your thread, wasn't it mentioned that your Clearaudio has a voltage regulator on board the chassis, feeding 12VDC to the motor?  Either that, or the $1200 option includes a regulator at its output.  Because of the voltage regulation, which is a very good way to go by the way, it is likely that the battery itself puts out more than 12V, because any VR itself drops some voltage from its input to its output. In fact, the voltage drop is necessary for good regulation. So, if one wants to build a less expensive version of a batt supply for the Clearaudio TT, one has to know precisely how the PS circuit is actually implemented, including precisely what is the voltage output expected from the battery to keep the voltage going into the motor stable.  It was at that point, I think, that you decided to spend the bucks on the OEM supply offered by Clearaudio.  Just hooking up a 12V batt (if it's a 12V motor) would be a bad idea, I think we all agree.  (I would still favor trying an AC power regenerator that has the capacity to supply AC power to other components in your system as well as the TT.)