"Jeff Liebermann" wrote in message
...
On Tue, 14 Nov 2017 19:22:17 -0000, "Ian Field"
wrote:

Just curious about the failure mode - the cells really weren't worked that
hard.

Here's how to fix it:
https://www.youtube.com/watch?v=IhUtKvCV6fs
https://www.youtube.com/watch?v=1w3Tv1Jg0ps

Every day is a school day.

I might have to rummage those cells out of the bin and do an autopsy - but
conscious enough of potential hazards to not bother re using them though.

Plenty replacements to hand, I just assembled another battery pack - but
that seems to answer my question; what happened.