Forum Discussion
full_mosey wrote:
Could have meant Watts.
Watts-Hours, maybe, but not Volts or Amps alone without some other context.
I.e., a 1000W solar generator, where the run time is explained or understood separately; a 1.5V D-cell v.s. a 1.5V AAA cell where we know which one runs longer.
HtH;
John
Watts makes no sense.
Should have been W-Hr or A-Hr (with a voltage defined)
It's not really analogous to D or AAA batteries.
- The voltage is just that, the output voltage.
- The letter designation defines the form factor (can it fit in the battery bay.
- The total stored power (w-hr) is not defined and can vary wildly depending on brand.
- Even if it did, since this is a totally new form factor, you can't expect the reader to have anything to compare with.- But still -- we can dream, right? Think how astonishing an iPhone would have seemed to someone in 1970. (My father, who worked for IBM starting in the mid-1950s, used to tell us that "someday, you will be able to carry around a computer in your pocket." This was when simple computers were much larger than refrigerators.)
- Perhaps the panels are made from "unobtanium"?
- Every panel is carefully crafted in Nigeria and comes with a free bridge. :R lol
- Could have meant Watts.
Watts-Hours, maybe, but not Volts or Amps alone without some other context.
I.e., a 1000W solar generator, where the run time is explained or understood separately; a 1.5V D-cell v.s. a 1.5V AAA cell where we know which one runs longer.
HtH;
John - It's always hard to tell, when someone is writing in a language that is obviously not their own, whether they actually know what they are talking about. If I were writing in Chinese, I would sound like an idiot, whether my invention was awesome or complete vaporware.
For example, when they say, "designed to be produced," that sounds like it's just conceptual, and has not been produced anywhere yet. But is that actually what they mean, or do they not understand English verb tenses? - I clicked on their description of their new solar battery -- here is what they said:
"Our battery is a printed power source designed to be produced onto a thin, flexible material with Flexible Construction, which can thereafter be retrofitted onto printed solar panels and lighting.
"It is environmentally friendly, non-toxic, and does not contain heavy metals. The batteries range in size and power and can be as small as one square inch and hold up to 250 volts."
Now, I am not an engineer, and I don't pretend to be an expert. But would you ordinarily describe a battery as being able to "hold 250 volts?" Wouldn't the description of capacity usually be in terms of amp/hours?
Maybe I am being too harsh here. I look forward to comments from folks who are more knowledgeable than I am. - I am rooting for these folks -- it would be so great if this were for real. 55%! Printable panels! Where do I go to invest?
Unfortunately, I have serious doubts. I spent quite a bit of time surfing around their website. The writing is terrible -- it sounds as though it was written in China. The English is not idiomatic at all. Read a bunch of the text and you will see what I mean.
The "our team" page is very odd -- most of the folks are described as "ambassadors" to various regions and don't appear to be engineers.
This alleged development is still worth following -- everyone laughed at the Wright Brothers, remember? But hang onto your wallet.
And Don, as they say, "good lookin' out" for bringing this to our attention. Well done, and let's all keep scanning the horizon! naturist wrote:
They also claim that their panels store the charge for use up to 72 hours. Two phrases kept echoing in my head as I read that site: 1) If it's too good to be true, it probably isn't; and 2) I'll believe it when I see it.
What? You don't believe in the "Vaporware 2020" model solar panels?pianotuna wrote:
wa7yxm,
No need to go to 13.6. They do sell inverters, too.
I understand this but if I have to change voltage which is better
Get the input voltage close enough that an MPPT charge controller can convert it to the required voltage by swapping volts for amps with around 90% effiency... OR.
Invert it to 120vac (About 90% efficient) and then convert it to battery charge voltage (which at best is 90% eficient)
I am a strong believer in KISS and the one step is both Simpler and More Effiecent.
Of course they may make an MMPT that ccan take 200 volts down to 12 or all I know.
