Dave Plowman (News) wrote:

They are welded to prevent heat build up to the cell which may occur while
soldering, and damage the cell.

A properly made overlapping solder joint will happily carry more current
than the tags themselves. I've done hundreds without problems.


Indeed - there is no way those tags are meant to reach 160C + in normal
operation. Something was definitely wrong there, to cause the soldered
joints to melt.


--
Grunff