This little guy is nice
This little guy is nice for smaller batteries. I first used it to charge a DIY pouch cell that I use to charge my phone on long days when I don't have access to grid power. Since then I use it to store some used 18650 cells. This bag gives me peace of mind that I won't burn down the house or shed if the batteries I store/charge decide to take a turn for the worse.
I did not do any destructive testing but it is made exactly like its larger brother so I assume that the destructive testing on the larger bag will hold true to this one.