What will happen if cells with different capacity are packed together?
If different capacity cells or mixing fresh and old cells were used, leakage or zero voltage would occur. That is because when charge, some cells with high capacity cannot be fully charged, while the others with low capacity will be overcharged due to the different capacity. While discharge high capacity cell can’t be fully discharged, however the low one is over discharged. If repeated like so, the cells would be damaged to leakage or low (zero) voltage.
