Well, I posted a fairly long reply but I see it didn't take. So here's a shorter version.
You can generally charge at 1 amp per 1000 mah. A 1500 battery can charge at 1.5 amps, 2000 at 2 amps and a 2200 at 2.2 amps etc. By following this rule of thumb you won't have trouble as long as your batteries aren't damaged. You will also find that no matter the size of the battery, they charge in about an hour.
I wouldn't worry about the temp probe because you should never leave charging lipos unattended. I bought a lipo charging bag and always charging on a fire resistant surface. It's only an hour remember, so it's really good idea to be around when charging.
Lipo batteries don't get a memory like the nicad batteries do. If you discharge them past 3 volts per cell it damages them. It's also okay to charge them from whatever level you like as often as you like and they don't get a memory. You can run one down until you hit the cutoff in the esc or you can run one for two minutes and charge, either way it's okay.
As far as balance charging, it's not really necessary to do it all the time but it doesn't hurt either. I rarely balance charge. I do have a cell checker that I plug into the balance port to see if it's charged and it tells me the individual cell charge levels. If one is off a bit, then I balance charge it but I rarely ever need to do that.