We have learned the hard lesson that you should never rely on the thin
membrane on the case to provide insulation.
The cells originally had a cardboard tube around the case instead of a
thin layer of heat shrink. Much better for insulation, but considerably
bulkier
I'm guessing you just had your first "personal plasma event". :-) After
that, you really understand that these cells are nothing like flashlight
batteries. Before that, you just don't quite get the hazard involved.
Bill D.
On 7/31/2020 5:11 PM, Lawrence Rhodes via EV wrote:
My first foray into lithium has had a few snags. It seems it is very easy to
scratch the skin of the cells thus a possible short within a cell. This was by
close encounters with scissors and knives. Cutting the nickel connectors and
plastic membranes of a 48v pack. I am trying to get 20 pairs for a 5ah 60v
battery. I will also band saw the pack cover and use that as a cover and
holder. Can I use liquid insulator or tape to repair the scratches? Lawrence
Rhodes
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