25C Poly RC Lipo getting hot at 16C peaks

Are they in an enclosed space, where excessive heat just builds? How much capacity was drained to reach that temp? Also in comparison to land vehicles, isnt the average, quite a bit higher in relationship to it's max amp draw?

[skellyo]

Originally Posted by asheck

Are they in an enclosed space, where excessive heat just builds? How much capacity was drained to reach that temp? Also in comparison to land vehicles, isnt the average, quite a bit higher in relationship to it's max amp draw?

It is an enclosed space, but they are the hottest thing in the boat. The motor and esc are a good 30F lower in temp than the lipo, so the ambient air around them isn't causing the greater increase IMO. I think the best thing to try now is different lipos. The boat runs great, I just totally wasn't expecting hot batts when they're not being discharged at even close to their C rating.