Rick Beebe wrote:
I am converting my lead-acid truck to 100Ah CALBs and they're all going
in insulated, heated battery boxes. I won't actively heat them in use
but if they're at or below 0C when I plug the truck in, it will run the
heaters until the batteries are warmer before turning the charger on.
0 deg.C is getting kind of cold. You may find that you want to run the
heaters anyway in the winter to keep them warmer than that. Experiment. :-)
my son is using an M1330 Dell laptop which is well over 6 years old and
it still runs for hours on the original cell pack. It has always been in
daily use and very often on battery only.
I actually think that's better. Laptop batteries are usually murdered by
their charger. Laptops that I lug around and use on batteries always
seem to last longer than ones that mostly sit on a desk plugged in. I
find the latter's capacity diminishes rapidly over time.
Laptops seem to employ several "murder weapons". The charger is one,
heat is another, and a minimal BMS is a third.
--
There are few industries with more BS than the battery industry.
Elon Musk
--
Lee A. Hart, http://www.sunrise-ev.com/LeesEVs.htm
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