This is a 3S LiPo which would not recharge . On investigation one cell was shorted out. I removed that cell and cut it open for a look.
Now they are in series and the top connector is soldered solidly .Pos to neg of next cell.
Heavy power out leads are at the ends. the red charging wire connects to pos ,the next small black charging wire is to neg of same cell and pos of cell 2, the next small black is to neg of cell 2 and pos cell 3 and the last small black is to the negative of cell 3
So by putting in small cut off wire pieces you can read the voltage of each cell with a multimeter. Obvious for some but I initially had no idea how those charging wires were set up
The flat cell I cut open to see a lot of aluminium foil and a black paste layer set up like a capacitor . I tried to ignite the paste but could not . I tried to burn the cell itself with a gas torch to no avail. I crinkled it and dropped it and bent it but it still did not seem to want to catch fire for me !
The heavy terminal material going into the cell was remarkable ,like a metalised plastic strip 1/4 inch or so wide and flat.
I suppose it might have to be fully charged to ignite hey?
Now they are in series and the top connector is soldered solidly .Pos to neg of next cell.
Heavy power out leads are at the ends. the red charging wire connects to pos ,the next small black charging wire is to neg of same cell and pos of cell 2, the next small black is to neg of cell 2 and pos cell 3 and the last small black is to the negative of cell 3
So by putting in small cut off wire pieces you can read the voltage of each cell with a multimeter. Obvious for some but I initially had no idea how those charging wires were set up
The flat cell I cut open to see a lot of aluminium foil and a black paste layer set up like a capacitor . I tried to ignite the paste but could not . I tried to burn the cell itself with a gas torch to no avail. I crinkled it and dropped it and bent it but it still did not seem to want to catch fire for me !
The heavy terminal material going into the cell was remarkable ,like a metalised plastic strip 1/4 inch or so wide and flat.
I suppose it might have to be fully charged to ignite hey?
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