Originally Posted by
crusey_aus
No reason to use the discharge mode unless you want to take a full pack down to storage voltage
Your packs should be at a resting voltage of 3.7v or so before charging, meaning your LVC would be set at 3.4 - 3.5v
A 1c charge rate for a 4200mah pack would be 4.2 amps and should take 60 minutes or so from empty
Fast charge should only be used if you are in a hurry, otherwise you should be balance charging it
Cheers
Let's first specify that the information bolded above is PER CELL not PER PACK. Your LiPos have 2 cells per pack. So, your resting/storage voltage should be in the neighborhood of 7-7.4V and your LVC (low voltage cutoff) should be no lower than 6.8V.
Your charger settings look good to me. I can't speak to the Vorza's power draw, but I have a couple of 4200mAh batteries and I can get 20-25 minutes per pack under race conditions with a buggy and truck both running high timing values and high gearing with 9.5 motors in them.