RC-Monster Forums - View Single Post - 25C Poly RC Lipo getting hot at 16C peaks

skellyo · **25C Poly RC Lipo getting hot at 16C peaks -** 05.30.2010, 07:18 AM

I posted this on a boat forum regarding some Poly RC packs I recently ran in my boat.

I picked up a Mini Cat Racing Velocity Mono several weeks ago and 3 - 3S 25C 2200mAh Poly RC packs for it. I expected these packs to run very well in this boat. However, I was very disappointed with how hot these packs were after running. One run a pack hit 148F! To be sure I didn't have an unexpectedly high current draw, I picked up an Eagle Tree datalogger and ran it for a few minutes this morning to get some data. It backs up my assertions that the pack just isn't that great. However, it does hold voltage at ~3.6V/cell at the highest current peak on my plot, but that's at only ~16C from a 25C continuous pack.

Has anyone else had issues like this with a pack where it's used well below continuous C rating, but still gets way too hot?

	(#1)
skellyo RC-Monster Brushless Offline Posts: 2,466 Join Date: Jan 2006 Location: Florida	25C Poly RC Lipo getting hot at 16C peaks - 05.30.2010, 07:18 AM I posted this on a boat forum regarding some Poly RC packs I recently ran in my boat. I picked up a Mini Cat Racing Velocity Mono several weeks ago and 3 - 3S 25C 2200mAh Poly RC packs for it. I expected these packs to run very well in this boat. However, I was very disappointed with how hot these packs were after running. One run a pack hit 148F! To be sure I didn't have an unexpectedly high current draw, I picked up an Eagle Tree datalogger and ran it for a few minutes this morning to get some data. It backs up my assertions that the pack just isn't that great. However, it does hold voltage at ~3.6V/cell at the highest current peak on my plot, but that's at only ~16C from a 25C continuous pack. Has anyone else had issues like this with a pack where it's used well below continuous C rating, but still gets way too hot?