Mice, squirrels, rabbits are all amateur electricians. Never let them near the stuff.
I agree 100%! My friend is a sparky, has been an electrician for 50 years. I believe cheap components, without any redundant safeties caused it, as does the Fire Marshall. Just passing info not debating reasons. After all it's 100% guessing, without investigation, done yesterday by the fire department. I kept thinking of a ghost ship, full of electric cars, melting down at sea. Being ignorant about lithium-ion and solar charging, njust thought I would share.
