I have one of these and you will find that set the Lipo Charge to max = 5a, and Balance charge. When you initiate a charge it does a confirmation check e.g. 2S You have to confirm it. What then happens is the charger ramps up to maximum rate depending on the current unused capacity of the batteries and then slowly drops the charge rate as the peak charge is reached. It then Beeps and displays FULL on the readout and stops charging.
Sensible to use a Lipo bag ( compulsary at BRCA meets ) IMax B6 is a good charger
