4s M1 A123 cells on Mamba Max 5700?

[brijar]

How hot do the M1 cells get? I just got back from the lake, running my Villain on 14 GP3300s, and those cells get way too hot to touch after a hard run. Of course, the batteries aren't exactly spring chickens, being about a year old (the 19th will be their birthday:cool:), and being run a lot in my used-to-be-brushless Maxx, the batteries didn't have an easy life, so they could have developed some resistance that will make them get hotter than they should.
I just don't want the M1 cells to melt a hole in my boat and sink the whole thing:036:. I read about them a bit in the newest issue of Popular Science, and it tells how they work and everything, also saying they can withstand heat up to like 400* without being damaged, so durability doesn't seem to be an issue.

Thanx,
Brijar!!!