just wondering how people go about the charging process with lipos. can you charge numerous packs, take them to the field and fly? or do you recharge them to top them off, or just charge them at the field them immediately fly them?

I charge my LiPos in the evening after I have finished flying. LiPos do not loose their charge, so if you charge one up today, it will still be fully charged next week. DO NOT top LiPos off. This is one of the shurest ways of creating a problem with your battery. Get a fire proof container to hold the battery while it is being charged. An old army ammo box works great. NEVER charge a LiPo at greater than its rating (i.e.: an 800mah should never be charged at anything greater than 0.8 amps; a 1200mah should never be charged at greater than 1.2 amps, etc.)

Get extra batteries and charge them all at home. That way you don't need to waste time when at the field.

if you have multiple chargers or multiple outputs on a lipo compatible charger

they take about an hour to charge, so you can charge them at the feild or at home. It is better to charge the packs at room temp though.

you can top them off if you have let them sit a few days or more, the other poster said you can't do this, but I'm not sure why not. I've never heard anything like that. Charging at the feild this time of year can present a problem because of the temps involved. Honestly though like the other guy said they really don't loose that much charge over a weeks time period.

Also make sure you balance them, and store them at 3.8v per cell and never discharge them under 3.0v per cell under a load, or 3.7v or so under no load.