Since battery charging was mentioned, I thought I’d share this. I always have my charger on a metal surface in case something happens. Well, I found my garage full of smoke Wednesday. I had two 18650 batteries charging and had just walked past the charger about five minutes before I found this. I won’t charge again without putting the charger in a LiPo safety bag.
Wow - thank Goodness no one hurt and it doesn't seem to be too much damage. I had one of those bags and then I was paranoid about that because I thought it did not let any air in--- may have to rethink it.
I monitor my charger too but do admit to leaving the room briefly. Kind of a good thing you left for a few. I try to leave my charger on concrete -- I have a brick for that purpose rather than metal.
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