So I have a question. I have been using a Pro Tek Lipo 5400 and I have not used any other brand yet. I notice the first few laps the battery has awesome power. Then it drops just a little of the power and remains the same (still has good power) power for the rest of the run. I just wanted to know it this is normal for all lipo battery's or not. Its not a large notice able difference but I can notice it.

thanks