I have a co-worker who used to design BMSes. He says batteries are more about the BMS then any other part. He says a lot of work goes into a GOOD BMS, and there are a lot of cheap bad ones out there
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73 de KG2V
Charlie
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On Nov 2, 2022, at 9:20 AM, Bill Cromwell <wrcromwell@...> wrote:
?Hi JJ,
I think the comment I referenced said you can run them flat and not to 'BMS' cutout. For what it's worth I have already cycled my SLAB batteries far more than 300 times and they were used when I got them. In dayes of olde I had two or three Ni-Cad battery packs that lasted more then 12 years of regular use simply by avoiding complete charge depletion and not using "fast charge". So no abuse. I replaced those with NiMH and those are performing even better (age unknown). If we use due care with any of the technologies they can give us excellent service. The lithium technology has high power density for light weight and has a useful voltage-discharge curve. The LiFePO batteries are the ones I am acquiring to replace my aging SLAB batteries. Thanks for the comments. I will look into getting the controllers and buying the cells to assemble my batteries.
73,
Bill KU8H
bark less - wag more
