If the boat had enough water in it to make a LiPo wet, are you sure that the speedo wasn't affected and then the LiPo went up? Was it a cased LiPo like ours, or was it uncased like a 'plane? The information you posted wasn't any use, it doesn't contain enough information.
Water and electrics don't usually mix, but that does not mean that water on a LiPo is a problem. For us with our cased LiPos it is the reverse - TC and buggy run in the wet. TC runs with no undertray and water is everywhere, but that doesn't mean the LiPos are affected.
As bigred says, it is a misleading post. There are lots of people on this forum with little or no knowledge or experience of LiPos and you posts seem believable. As they are not, please consider bigred's advice; he seems to be a friend of yours.
