Weird LiPo puffing?..

[BrianG]

I doubt that the short caused this for two reasons:

1) I assume you are using the LBA10, right? That's the only one I know with a fuse. If so, it's rated for 10A. Our setups draw FAR more than that, so that's not it.

2) From experience, Elite cells are awesome. I've pulled more than 30C on my 3.3Ah cells (more like 40C bursts), and they held up fine.

What it looks like is that a cell puffed (for whatever reason), but the battery tray was holding in that section of the puff (the top part in your pic) making it look lopsided.

As to why it puffed in the first place: Your setup must either pull a very hefty current, the cells got too hot, that one cell got charged too high over 4.2v, or, like Linc said, physical damage.