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Old 20-04-2019, 09:22   #6316
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Re: LiFePO4 Batteries: Discussion Thread for Those Using Them as House Banks

So

$520 / kWh through Amazon

vs from this other mystery supplier

$300 + delivery costs from China, maybe tariffs / customs fees?
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Old 20-04-2019, 09:36   #6317
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Re: LiFePO4 Batteries: Discussion Thread for Those Using Them as House Banks

Quote:
Originally Posted by newhaul View Post
john you don't need to justify why you don't want to purchase any particular product
You misinterpret, I am laying out the decision factors, very clearly stated these may indeed be great value for money.

But being skeptical by default is the only rational approach in this market segment full of scammers.


> Amazon is a north American supplier.

But Amazon is not the seller here, just providing a slot on their "marketplace" website, just like eBay or Ali. Walmart, Sears do the same.

I already asked for info on Amazon's buyer protection and warranty policies in that scenario, but no one's answered as of yet.

With eBay / PayPal they refund your money directly, regardless of what the seller has to say, can ignore any contrary policies stated in the product listing, their decisions are 99.9% slanted in favor of the buyer.

Ali, sometimes they side with the seller.


> Personally I would rather factory direct its a lot cheaper.

Certainly not cheaper than what we're talking about here.

If you can actually contact the official manufacturer's employees directly, I agree that's ideal for increasing the odds of getting at least grade B or C quality cells,

but factories can sell QA rejects directly just as easily as the middlemen

and the buyer-protection and cost of return shipping of the rejects remain major risk issues.

Most quality makers do not want to sell direct to the consumer at all.
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Old 20-04-2019, 09:51   #6318
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Re: LiFePO4 Batteries: Discussion Thread for Those Using Them as House Banks

Quote:
Originally Posted by john61ct View Post
So

$520 / kWh through Amazon

vs from this other mystery supplier

$300 + delivery costs from China, maybe tariffs / customs fees?
no customs fees on anything under $1,000 period.
Thems just the rules.


And not mystery supplier .
Factory direct.
Still waiting on shipping from the factory.
It is After all Sunday in the orient.
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Old 20-04-2019, 09:57   #6319
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Re: LiFePO4 Batteries: Discussion Thread for Those Using Them as House Banks

Quote:
Originally Posted by john61ct View Post
You misinterpret, I am laying out the decision factors, very clearly stated these may indeed be great value for money.

But being skeptical by default is the only rational approach in this market segment full of scammers..

Most quality makers do not want to sell direct to the consumer at all.
you have used this exact argument for a long time . You don't need to tell anyone why you don't buy cells .

And you are incorrect on the manufacturer not wanting to sell direct.
I purchased my camel cells direct from camel battery.
If you want to buy the same prismatic pouches in a case you like more then you can buy calb or just about every other makers cells direct . Things are different in the rest of the world than in the USA .
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Old 20-04-2019, 10:16   #6320
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Re: LiFePO4 Batteries: Discussion Thread for Those Using Them as House Banks

What do you mean by "enlargement"?

Pouches are quite different from prismatic, don't know of anyone using those on a boat.

My own purchase decisions are not relevant to this more general conversation, the point is being helpful to the community as we all learn from each other.

I am sorry if you perceive my comments as attacks, not what I intend, and I am grateful for your contributions.

I also did not say nor mean "no manufacturers deal with consumers".

I limit my list of what I consider "quality makers" to

Winston/Thundersky, CALB, GBS, A123 & Sinopoly,

considering maybe adding K2 since learning they are Trojan's OEM for their Trillium line.

I thought you were also based in NA?
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Old 20-04-2019, 10:22   #6321
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Re: LiFePO4 Batteries: Discussion Thread for Those Using Them as House Banks

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Originally Posted by newhaul View Post
Factory direct.
Sorry must have missed that you'd contacted Sinopoly corporate itself, is that what you mean?

Or do you mean you think these are not actually made by Sinopoly?

That's what I meant by mystery. . .

I've dealt with "the factory" myself in other Asian markets, often dealing with the manager of the night shift selling out the back door. . .
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Old 20-04-2019, 10:29   #6322
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Re: LiFePO4 Batteries: Discussion Thread for Those Using Them as House Banks

Quote:
Originally Posted by john61ct View Post
What do you mean by "enlargement"?

Pouches are quite different from prismatic, don't know of anyone using those on a boat.

My own purchase decisions are not relevant to this more general conversation, the point is being helpful to the community as we all learn from each other.

I am sorry if you perceive my comments as attacks, not what I intend, and I am grateful for your contributions.

I also did not say nor mean "no manufacturers deal with consumers".

I limit my list of what I consider "quality makers" to

Winston/Thundersky, CALB, GBS, A123 & Sinopoly,

considering maybe adding K2 since learning they are Trojan's OEM for their Trillium line.

I thought you were also based in NA?
that was a typo it was supposed to be argument.

Pouches are prismatic cells. ( or more specifically prismatic cells are comprised of multiple pouches in a case.

You are correct your own purchase is your own however that purchase is definitely germane to this thread . (Read the title again).

I do not see your comments as an attack .

As to manufacturers I can purchase factory direct from all of them.

Lastly yes I am based in north America specifically one of the boating capitol of the world. Seattle Washington. ( also one of the main commercial fishing ports )
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Old 20-04-2019, 10:33   #6323
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Re: LiFePO4 Batteries: Discussion Thread for Those Using Them as House Banks

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Originally Posted by john61ct View Post
Sorry must have missed that you'd contacted Sinopoly corporate itself, is that what you mean?

Or do you mean you think these are not actually made by Sinopoly?

That's what I meant by mystery. . .

I've dealt with "the factory" myself in other Asian markets, often dealing with the manager of the night shift selling out the back door. . .
really you should quote my posts better I am in contact with ruixu the company that manufactures the cells offered on Amazon in the link I posted.
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Old 20-04-2019, 10:52   #6324
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Re: LiFePO4 Batteries: Discussion Thread for Those Using Them as House Banks

Are you saying you have contacted the company with that name I linked to in China?

Do you know for sure there is a real connection between them and the Amazon seller?

Their Ali listing shows completely different-looking cells. Most companies claiming to be "manufacturers" there are really just drop-forwarding marketers.

And you must also be saying that you believe these are not Sinopoly cells?
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Old 20-04-2019, 10:59   #6325
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Re: LiFePO4 Batteries: Discussion Thread for Those Using Them as House Banks

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Pouches are prismatic cells.
My point is, since pouch cells are available to buy without any protective casing, it would IMO be best not to use the term, as if interchangeably, for the more easily usable finished-product prismatics discussed in a boating context.
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Old 20-04-2019, 11:33   #6326
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Re: LiFePO4 Batteries: Discussion Thread for Those Using Them as House Banks

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Originally Posted by john61ct View Post
My point is, since pouch cells are available to buy without any protective casing, it would IMO be best not to use the term, as if interchangeably, for the more easily usable finished-product prismatics discussed in a boating context.
no you said that they are completely different critters

Specifically "
Pouches are quite different from prismatic, don't know of anyone using those on a boat."
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Old 20-04-2019, 11:35   #6327
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Re: LiFePO4 Batteries: Discussion Thread for Those Using Them as House Banks

Quote:
Originally Posted by john61ct View Post
Are you saying you have contacted the company with that name I linked to in China?

Do you know for sure there is a real connection between them and the Amazon seller?

Their Ali listing shows completely different-looking cells. Most companies claiming to be "manufacturers" there are really just drop-forwarding marketers.

And you must also be saying that you believe these are not Sinopoly cells?
just because they look similar doesn't mean they are the same manufacturer.
Just more likely that both companies purchased the same cases for the pouches that they purchased . From another manufacturer.
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Old 20-04-2019, 12:47   #6328
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Re: LiFePO4 Batteries: Discussion Thread for Those Using Them as House Banks

Sinopoly's revenues are tens of millions, pretty sure they can afford to mold their own plastic 8-)
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Old 20-04-2019, 13:36   #6329
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Re: LiFePO4 Batteries: Discussion Thread for Those Using Them as House Banks

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Sinopoly's revenues are tens of millions, pretty sure they can afford to mold their own plastic 8-)
trust in the fact that they don't make their own cases . They may order them with their logo imprinted like calb or Winston do but they don't make their cases. That would not be a sound financial decision.
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Old 20-04-2019, 15:35   #6330
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Re: LiFePO4 Batteries: Discussion Thread for Those Using Them as House Banks

The 200Ah batteries on Amazon are about the same price (actually a little more) as a Calb 180Ah battery. What makes Amazon a deal is the free shipping.
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