Originally Posted by hyujmn

Im running Gens Ace 5000mah/50c batteries. They're older packs, had them for almost a year now. Not puffed at all. Still balance charges perfectly to 4.2v each cell, and after a run, they'll be within .01v of each other, like 3.98/3.97. So the packs themselves are in good condition. Im just noticing that I get really slow after a while. No matter what I do, I can't stay at the same pace. On my local track, I'll be doing 14.1-14.3 consistently and then I'll notice that my times go down to 14.7/14.8 every lap after about 4 mins. At the end of 8 min mains, I'll be averaging 14.9s every lap.