I received batteries higee from reseller. The manufacturer answered me and said that judging the pictures, the production of my cell is June 2019.
However seller said that the cells were produced in October 2020, taking into account the fact that I ordered from at the beginning of November 2020. i think it is unrealistic.
It seems date can be decoded from serial, but it is contradict to https://diysolarforum.com/threads/b...ltage-difference-between-cells.818/post-10157 (in this post we have 18K which can be equal to november of 2018, but user write info about that the higee confirmed production date as august 2019)
THIS IS ONLY THEORY OF INTERPRETATION
Another messages with such qr codes:
diysolarforum.com
diysolarforum.com
I consider my theory to be correct because it is quite possible that the production date is one year before these cells reach us, it seems to be true. And the reseller somehow has a connection with the manufacturer and may influence their responses (about production date), because the manufacturer asked where I bought the batteries, in order to tell the date more precisely. The reseller also asked for the contact person I spoke to at the manufacturer.
I also asked the manufacturer if my theory about the interpretation of the date is correct.
However seller said that the cells were produced in October 2020, taking into account the fact that I ordered from at the beginning of November 2020. i think it is unrealistic.
It seems date can be decoded from serial, but it is contradict to https://diysolarforum.com/threads/b...ltage-difference-between-cells.818/post-10157 (in this post we have 18K which can be equal to november of 2018, but user write info about that the higee confirmed production date as august 2019)
THIS IS ONLY THEORY OF INTERPRETATION
Another messages with such qr codes:
BLS 4x 3.2V 200Ah LiFePO4 - voltage difference between cells
Also, cooling in between cells should not be an issue in solar storage applications Hello again, I started celltests with my datalogger. I also measure temperature at the center of the cell during Charge/Discharge. The cell lays down flat on a table, a precision digital sensor DS18B20 is...
diysolarforum.com
QR code reader for Lifopo4 cells??
After days of searching and using several QR code apps on my Android phone, I'm still unable to scan the QR code on my LiFePo4 cells!! I asked several sellers, and they all tell me the same, that it is special scanner used by the factory. Without any information, how to determine what the...
diysolarforum.com
I consider my theory to be correct because it is quite possible that the production date is one year before these cells reach us, it seems to be true. And the reseller somehow has a connection with the manufacturer and may influence their responses (about production date), because the manufacturer asked where I bought the batteries, in order to tell the date more precisely. The reseller also asked for the contact person I spoke to at the manufacturer.
I also asked the manufacturer if my theory about the interpretation of the date is correct.
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