I have purchased 22 of these batteries in 2 different orders. I will continue to buy from this source as much as I can. It has not been a perfectly smooth process. However the seller has honored everything he promised or has gone out of his way to make up the difference in order to put things right. I would say he has actually gone above and beyond the standard of most vendors in this market. The first order was a few months ago, I ordered 11 and they showed up as expected. I began the process of salvaging and testing the individual 18650 batteries to make a 20s20p battery for my ebike. That requires 400 cells so I ordered 440 or 11 batteries. I am 85% through the process and so far only one bank of 4 cells was bad. This is not upsetting to me, but rather expected. That is less than a 1% failure rate, acceptable to me. Thats why I ordered 10% more than I needed. Remember the seller is only reselling batteries he has acquired he didn't make the batteries! These are proving to be great batteries and at the price in my opinion he is doing us or at least me a favor, saving me a lot of money!
Then, a few months after I got them I realize I only got 10 batteries, not 11. Ooops I should have counted. Great, so now I don't have enough batteries to make a complete 400 cell battery! I don't like using dissimilar batteries in a build this big.
I thought It would be difficult to convince a vendor that I was shorted from a sale months ago but I had to try.
I had nothing to fear, he believed me and apologized, and he some of the same batteries coming in a few weeks so I ordered another 11 batteries plus the one missing, so 12 more on the way.
It took a little longer than discussed and there was a small communication gap recently discussed above by others but last week I got my 12 batteries as promised and a follow up text from the seller to make sure I got what I ordered...
He has never done or said anything that made me nervous and has followed through with everything promised. I am a happy customer and hope this seller can continue to be able to offer these kind of deals. I think buyers need to have realistic expectations on this business model.