Okay, let me kick in my $.02. On a six volt pack, if the voltage under a 1 amp load is below 6.3 volts NiCad or 6.4 volts NiMH, I quick charge. I don't use 4.8's on much and the ones I run are in fun flies and are very small and light, so I always quick charge (smart charger) between every flight. The smart charger does not overcharge batteries like some other quick chargers. I use digital servos on almost everything anymore and they are known to suck amps, especially in aggressive 3D or aerobatic flying. I am just now starting into Lithium batteries, but doing so tenuously. Really trust the old reliable NiCads and NiMHs.

I cycle test my batteries once every two months with a Triton Charger, through three, charge/discharge cycles. If the pack isn't greater than 85% of rated capacity, the cord gets cut and the battery discarded. I have some NiCads and NiMH that are over 3 years old and still cycle over 95%. They are all Sanyo's.

You made a very smart investment in your meter. I have seen many planes lost, because of just one more flight for the day and the pilot didn't know his batteries charge condition.