I purchased 12 - 310ah LifePo4 VariCore cells from AliExpress advertised as brand-new Grade A and are not!
The manufactures QR code had been scratched off and a bar code with the word scratch was applied to make it appear like a QR code in the ad.
Two cells are swollen, 1 about 3/16" the other a little less.
I balanced and assembled into 12v packs using JDB bms's. The best I have gotten is 283 ah.
PayPal is demanding a 3rd party to confirm the cells are not Grade A.
I would be willing to pay a consulting fee for an opinion.
The manufactures QR code had been scratched off and a bar code with the word scratch was applied to make it appear like a QR code in the ad.
Two cells are swollen, 1 about 3/16" the other a little less.
I balanced and assembled into 12v packs using JDB bms's. The best I have gotten is 283 ah.
PayPal is demanding a 3rd party to confirm the cells are not Grade A.
I would be willing to pay a consulting fee for an opinion.