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Excuse, I forgot to write in time. I ordered 16 280 Ah cells and 1 200 A BMS from Basen beginning December. It appeared March 19th by UPS. As in the contract, door to door, I paid only what I paid to Basen. Perfect for private orders. The only problem is, I have a company and I can deduct import...

Basen just made me a door to door offer including customs and import VAT. Just about to answer the question, how to get a paper about the paid VAT to apply as a business owner for VAT refund. Are here some EU citizen with import experience, what sort of paper did You receive as a proof, the...

I am just making an order from this cells and other equipment from Shenzhen to Hamburg. I will use CIS-Logistics.de They offer 40 €/ton or m³ for Shenzhen to Hamburg and 240 € /ton or m³ from Hamburg to me near Salzburg. Anybody interested in reducing transportation costs by using the same...

So all is about how to keep "value" cells working for a long time. I think the solution for this is a better more intelligent BMS and the possibility to have older and newer packs parallel, until the oldest pack is very much down, maybe to 30% if possible.

Here a post how this happens https://diysolarforum.com/threads/shenzhen-basen-280ah-issue.14327/#post-159611 One cell is a little bit weaker. This weaker cell has more stress, because more discharged. So the weaker cell degrades faster. A BMS with only top level balancing can not save this cell...

I am for all phase balancing. I am for registering each cell by the BMS software using the QR-code, so a history of each cell can be stored. I am for monitoring to identify problem cells. I am for helping identified problem cells to keep them as healthy as the average of the pack. Needs special...

This is only a risk with only 1 string of cells. At all parallel and more then 4 strings, the risk is no problem. The remaining can still do the job. When the house computer controls all BMS, the software can tell which cell is the problem. Maybe it is possible to identify risk cells before the...

Why is always 80% assumed as limit? Ok, when it is an electric car and range is important. But at a house weight and space does not matter. So I am designing for 12 slots for 16S 280 Ah LiFePo4 cells. At the start maybe only 3 slots filled. Every time, more capacity is necessary, this can be...

For making proper purchase decisions at LiFePo4 cells, I collected studies about battery degradation and put all together in a PDF, each picture linked to the study.

In this case, the weakest cell becomes even weaker, because more discharged than the other cells. I think on an active BMS with a computer control. So when the software notices, that one cell becomes more discharged than the others, The system could lower the stress to this cell. So this active...

Assuming there would be a BMS equalizing in each phase, at charging and discharging. How much A would have been necessary to cell 1 to hold this cell equal to the others?

Does this mean, that Basen is only a reseller of EVE Power?

What contains the QR-Code on the cell? I read only about theories about production date, but is there also an unique number to identify each cell?