I have the Passport Ultra P2 charger. I just got my batteries in the mail and want to charge one before I take off for racing tonight. The battery is a 5200mah so I set the charger for 5.2a rate. It is a 7.4v battery. It is a 2 Cell so I set it for 2S and it showed 7.4v. I hooked it up to the balance board and the leads and I selected balance charge. Well, it says the stop voltage is 8.4v. Is that too high or am I looking at something that is more of a "just incase" thing? I don't want to blow up the battery already!! I haven't even had a chance to demolish the car!! Please tell me that what I'm seeing is normal. I stopped the charge when it was showing like 7.9v on the charger.