My son was up this weekend and he finished putting in the 2″ x 6″ ceiling joists and the R-30 Insulation in the roof of the solar power shed.
Readers may recall that a couple weeks ago, when the temps went down to -3°F here in northeast PA, the battery temperature of the Lithium Iron Phosphate battery rack dropped down to 28 or 26 degrees.
That is perfectly fine for the batteries to continue supplying power, if they had to, but definitely NOT OK if any charging is, or might, take place.
Apparently, when Lithium batteries reach 32 degrees, if you try to charge them, it __could__ result in something called “lithium plating.”
From Google:
Lithium plating is a process that occurs in lithium-ion batteries when lithium ions build up on the surface of the anode instead of being inserted into the graphite particles. This can happen when the battery is charged too quickly or at a…
