With lipos at about 60-70% capacity how long can I store then? What type of maintenance is needed, just put them back to 60-70% or put a load on them and then back to 60-70%? Or charge them and run them down to 60-70%. I know you can't just let them sit for months at a time. Mine might be sitting for about 6-8 weeks.

Charge it to half of what you normally charge it to. and check the voltage levels every month. And charge when needed. You do this and, it can stay in storage for years.

I've read that lipo media begins to degrade after 2yrs and performance starts declining as a result. I've had lipos go bad stored at 50% capacity so I store mine at 80%. I do as Foxxrocket and check voltage about once a week, I do leave mine sit for months at a time and don't see probs. I did leave some at 50% and went out of country and lost them all - ever one puffed.

Your new 0610iNet charger has a function "TCS", terminal capacity selection - its a percentage figure, when you want to store one, get lipo hooked up and set TCS to what you want, I use 80%. Then start charger - it will either charge it to 80% or, if its over that already, it will discharge (slowly @ 300ma) it to the 80%. The charger though when it reaches the 80% it will beep and pause - think its 15sec and then proceed to do a full charge. You have to be there to pulll it off at 80% when it signals its there. It will not go to 80% and stop - I think you can change a default in user setup though so it will stop, but I'm not sure since I've not tried doing that.