AliExpress fake 420ah cells

[elvis_asaftei]

Hi

Please take care when buying from AliExpress.

what do you think about 420ah in 5.1 kg ?!
New space technology from China scammers ?

fraudulent use of CE approval too…

 

[Pierrot]

4 x 105Ah cells@3.2V in parallel = 420Ah@3.2V battery pack.
This add is knowingly misleading, but correct.

 

[elvis_asaftei]

4 x 105Ah cells@3.2V in parallel = 420Ah@3.2V battery pack.
This add is knowingly misleading, but correct.

Can you read the label on each cell ?
It is the weight and dimensions of 280ah cell.

 

[Diysolar123]

4 x 105Ah cells@3.2V in parallel = 420Ah@3.2V battery pack.
This add is knowingly misleading, but correct.

yep...this is why it sooooo difficult when buying from aliexpress/banggood/etc. as the level of "marketing speak" is far beyond what most people are use to hehe

It is just like the marketing genius that came up with posting pictures of "exactly" what you will get, e.g., a chair, and it turns out the be a macro photograph of a toy chair as the original post actually had no dimensions...pure marketing genius!!

 

[HRTKD]

Can you read the label on each cell ?
It is the weight and dimensions of 280ah cell.

I can see your point, but the battery appears to be configured in series, not parallel in the picture.

 

[elvis_asaftei]

I can see your point, but the battery appears to be configured in series, not parallel in the picture.

My point is the label printed on each battery.
size and weight is from 280ah battery

 

[HRTKD]

If it seems to good to be true...

 

[Bob B]

There are other threads about these fake 420 AH cells ..... just search for 420 and you will find them.

 

[Hasakei]

LiFePO4 batteries typically have an energy density of 180Wh/kg, these 420ah cells have an energy density of 260wh/kg, Unbelievable!

 

[Bud Martin]

Store also has 0% feedback, LOL.

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[elvis_asaftei]

LiFePO4 batteries typically have an energy density of 180Wh/kg, these 420ah cells have an energy density of 260wh/kg, Unbelievable!

what do you think about 320ah PWOD cells ?
they weight 5.1kg so that is more like a 280ah cell, right ?

PWOD seems to lie , anyone knows if someone did capacity tests on 310ah PWOD cells ?

 

[Hasakei]

what do you think about 320ah PWOD cells ?
they weight 5.1kg so that is more like a 280ah cell, right ?

PWOD seems to lie , anyone knows if someone did capacity tests on 310ah PWOD cells ?

As I know, the brand new grade A battery cells always have a higher capacity than the rated capacity, just like this test report: https://www.evlithium.com/upfile/Test-Report-of-400Ah-LFP-Battery.pdf, the 320ah PWOD cells, 280ah eve, Lishen 272ah or CATL 302ah, all have the same Appearances and same size of the aluminum cases, but the price of the 320ah cells is not like the quality "A" cells

 

[elvis_asaftei]

As I know, the brand new grade A battery cells always have a higher capacity than the rated capacity, just like this test report: https://www.evlithium.com/upfile/Test-Report-of-400Ah-LFP-Battery.pdf, the 320ah PWOD cells, 280ah eve, Lishen 272ah or CATL 302ah, all have the same Appearances and same size of the aluminum cases, but the price of the 320ah cells is not like the quality "A" cells

yes, same is what I suspect.
anyone has some capacity tests for PWOD cells 310ah or 320ah ?

 

[digitaldoug]

4 x 105Ah cells@3.2V in parallel = 420Ah@3.2V battery pack.
This add is knowingly misleading, but correct.

OK, now explain why each cell says 420Ah when bought in quantities of 4 and 16 == 20. That is how many I bought.

 

[digitaldoug]

Can you read the label on each cell ?
It is the weight and dimensions of 280ah cell.

Yes, the label says 420Ah and the weight is 5.1 Kg. The dimentions are 201mm high, 72mm thick, 173mm wide +- 1mm