tkhoo,
Charging and discharging as a pack(side by side or stick pack) can be done by most charger with LED display to what ever voltage you one. But to individually discharge all six to 0.9v, I don't think so. That you have to purchase a discharger. Now the million dollar question -
Does it make a difference if you discharger all 6 cells individually to 0.9 v and charge it as a pack ??
Hope some experience bros there could give me some light on this