Quote:
Originally Posted by redpoint5
$12 each cell? What is the size, because the biggest I could ever find is 32700 at 7.2Ah. I paid something like $4/cell, but that was before the WuFlu.
Where did the case come from?
The problem I'm having is that the wiring for balance circuits is the opposite polarity of balance leads for external chargers. I have to decide to either wire it for a balance board, or wire it for external charging/cell voltage output, but not both.
I just got a UPS for myself, for Christmas, and am looking to replace the lead acid battery with LiFePO4.
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Search for "Soshine 40135". I would have gone for the Liitokala cells, which are reputedly legitimate and come with threaded posts, but none of them were available with reasonable shipping to New Zealand. The Soshine cells so far appear legit but you need to use either a (strong) tap welder, or use the cells in a lower current application where it's acceptable to use spring contacts to connect them.
The case is one I'm reusing. I had a powersports battery which failed when I left my Miata with a body shop for a few weeks. They ran it dead and jump started it multiple times, which eventually cooked the cells.