I am checking and balancing 22 Calb CA60 cells for a friend.
First I am checking each cell voltage and label it. There was one cell with a higher voltage.
While I was charging the whole pack in series, I already had to balance this cell with a 0,1 ohm resistor because the voltage was going up in the sky.
At the end I had a pregnant cell.
A sure sign for a dead cell.(