OK, so this raises several questions! :)
1) One of the sites listed chargers - and they said they were for ION batteries, NOT LiFePO4. Is there that much difference in the charger?
2) One of the kits had magnets in it. What are THOSE for? Is that to make sure the bars stay connected if you hit a bump?
3) Looks like both of these allow you to connect a bunch of batteries in parallel. Is it COMMON to connect a bunch of cells in parallel like that, and THEN connect the big chunks in series, and the BMS only monitors the blocks?
3.a) What happens if one of the cells in the parallel block dies / shorts?? Will that not flame the whole block?
I do totally get that the BMS would cost more than the batteries if you monitored each and every 18650 in a larger bank.
John
On Tuesday, February 6, 2018, 1:02:27 PM CST, James Schwarz jschwarz@latticesys.com [electricboats] <electricboats@yahoogroups.com> wrote:
There are two companies that provide DIY kits for building lithium batteries from 18650 cells, namely:
Jim Schwarz
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Posted by: oak <oak_box@yahoo.com>
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