Recent content by SpongeboB Sinewave

At least the PV efficiency is a bit better than it was 20 years ago so that space is a wee bit better used. And we still can't put enough solar on an electric car to power it, even if you drive where the sun shines. boB

Idle power used to be a huge issue before PV solar panels became cheap. So was power draw of lights and appliances. People would have separate DC distributions just for lighting and things that could operate off of lower voltage DC just because PV was so expensive. Extra and phantom energy...

Maybe... Would love to do that ! 380V I think is the future for higher power stuff, at least. Some of these systems can get pretty big ! Sure it can be dangerous. I don't know how they handle that now but a few years ago, we had a HV LG lithium battery and one of our techs had to fly to...

No. HyperVoc is actually the input voltage that the Classic will tolerate (not operate) at ABOVE its rated operating input range. For example, the Classic 150, which runs and starts up at 150V and below can tolerate (but not turn on) at the nominal battery voltage PLUS 150V. If you had a 48V...

Ryan said that the MPPT range is up to 550V but turns on as high as 599V. That means it can run in Absorb and Float charging modes at just below 600V... Depending on the output current requirements in those voltage controlled modes, it could be running at around 580V or 590V or so. 599V would...

Sounds like you have done well here ! Remember that adding a LOT of turns through the toroid can increase the capacitance from one side of that filter to the other side and possibly have diminishing returns. From S8 to S1 is significant I would say ! Maybe we need to have a DIY ham net some...

I would say to check or re-tighten once more after the first install. Wait 1 or 2 hours (while you're there thinking about it) should be good enough. I had not seen the "once a month" part but I know that re-tightening/torqueing an hour later is sometimes necessary with the CBI breakers...

Well, that's not going to work too well for lead acid without a way to at least end Absorb automatically. And maybe only some lithiums ? boB

Maybe -4F is ambient WITH heater on ? boB

The audio could be better at the beginning for polished up but was fine when the camera was close. The video production is fine. I LOVE how fast you install those batteries ! 😂 boB

I hope not !

Could certainly be HF... But if it is, I would think they would have said the inverter's weight ? boB

The new solar idiot said: From what I read Tesla charging is a hassle because you cant run dc to dc car battery. It has to go from dc to ac back to dc. idk That's OK. Solar/PV is cheap and sunshine is free. You can eventually add more PV and get there. This is also my eventual plan. Hope...

Are these batteries made to be able to put 4 in series to make 48V nominal ? The BMS's have a maximum voltage they can say, turn off at with other batteries in series. 36V + 12V = 48V so maybe there is something wrong with only one of those BMS/batteries ? boB

Does this 4 panel string have ANY shade on the panels at all ? That would certainly make the maximum power point lower.