My There’s 340 is battery powered.. Fantastic turntable. I’m not looking to replace it anytime soon
lol! artemus_5 Got to watch the spell-check, it turned Teres into "There’s"!
My Miller Carbon turntable is built on Chris’s Teres bearing, platter, and motor. https://systems.audiogon.com/systems/8367 It started with the early edition motor pod, was upgraded to battery power, then on and on up to the current extensively modified version with Teres Verus rim drive.
Battery power is definitely an improvement. Do it right and batteries completely eliminate all the EMI and RFI and other problems of AC. The power is cleaner and more consistent and you hear it in an altogether more natural sound. Hard to believe, we are after all talking about the motor. Just the motor. But even just that one thing makes a real difference.
I have to think the improvement would be even greater with sensitive components like a phono stage, DAC or CDP. But I haven’t tried, don’t know from experience. Things that don’t draw a lot of power would be the logical way to go.
Whatever you do, remember I said,"do it right"? That means completely disconnected from AC when running battery. Most battery systems use AC to charge, which is fine. But the AC line must be physically switched off and disconnected to get the full benefit. Otherwise whatever noise is on the AC line simply rides right on across the battery.
This one I do know from experience because Chris designed his battery to automatically disconnect from the charger when the motor is powered on. Without this feature if you run off battery while the battery is charging it is not as good. You can hear it. So make sure your battery system has this auto-disconnect feature.
PS the Tesla Powercell is a great way to spend $20k burning your house down. Do a search. How Tesla is able to continue selling cars and electrical panels that burst into flames like this is beyond me. Mass delusion. Lotta that these days.