[squeeforever]

One thing you NEVER do is discharge a LiPo pack after you run it unless your trying to get them back in balance or something. The MAX charge voltage is 4.2 volts per cell and the MINIMUM is 3.0 volts per cell. Going higher than the max or lower than the minimum will possible and likely damaged one or more of the cells. LiPo's are different than NiMH. You can charge them a week before you run them and they will hold the charge without damage without creating a memory. I would recommend topping them off before running them if you charge them that far in advance though. And yes, you should only charge at a max of 1C or for a 8000mah pack, 8 amps. Some packs, like the Scorpions from FMA, can be charged at higher rates though. Some of the newer packs can also be charged at higher the 1C, but will decrease the life slightly.