LiFePO4 cells from Amazon

[exMaggieDrum]

I have to admit that I did not know that Amazon, and I presume other US unspecialized vendors, are selling LiFePO4 batteries from stock. I found this cell https://www.amazon.com/3-2V100AH-RUI...TD3XSQNKST52QY


on Amazon just now. I just read the thread that came in this week's digest about another situation. So I did a search and found the same Sinopoly cells, in stock, at a very similar price that I paid 4 years ago. I had to order them through a Canadian EV company and it took over 4 months to get them and I had to prepay.

These cells are $108 each which would be $1728 plus a quoted $625 shipping to my address in WA state. I paid over $2500 for mine plus a lot of miscellaneous costs.

The market is becoming much more mature now. I just sold my boat and my fear that the tech would put off many buyers was only partially true. The idea of them is becoming more and more mainstream even for the hyper-cautious cruiser set. I suspect Nigel Calder and a few other popular writers to the sailing mags are a big reason.

Just FYI if some of you have not been following it.
BTW - since I sold my boat I didn't get a lot of history on them but had no reason to believe they weren't going to be great performers. I paired them up with a REC BMS with large contactors in a 4P4S configuration for 400Ah at 12v.


BTW - thanks to all who helped me along the way and thanks to all the others who have posted so much helpful (and a lot of questionable but well meaning) info on CF. I know I was in the latter category a lot, if not most, of the time.

[Tim Robotham]

Those are not sold by Amazon.

Ruixi is using their third party market just like Alibaba fleabay, walmart sears and so on.

[exMaggieDrum]

True. A lot of products listed on Amazon are not fulfilled from their warehouses. There may be some nuances as to what difference it makes to a consumer if the warranty and return policies are the same. But I didn't look in to that.



I was just surprised as to how easy it is to source things that used to be very difficult. I could have bought my Sinopolys direct from the factory before but they would have legally became mine at the shipping dock of the factory so I would have been responsible for arranging the shipping, customs and duties, insurance, and everything else. This is dramatically easier with some recourse to Amazon if the vendor screws up. Easier with little risk other than the product arriving damaged, or worse, defective without obvious damage. But with recourse to Amazon.