Just bought a Venom Pro Charger per LHS recommendation. I'm trying to figure out how to use it and have some questions (the manual isn't exactly comprehensive...)

I'm trying to charge a new Orion 3500 25C lipo. When I set all the parameters (lipo mode, 3.5A, 7.4V 2S, 3500mAh) and start charging, the display shows the battery voltage going beyond 7.4V (like up to 7.5V) and when I hit the "status" button, it says "end voltage 8.4V". That can't be right, can it?? Can I charge it to 8.4V?

Also, it seems to charge very quickly. It went from about 6.4V to 7.5V in a couple minutes. That can't be right either....can it??? I thought lipos were supposed to take a long time to charge.

Thanks in advance. I really want to get this figured out without blowing anything up....