On Saturday, January 19, 2019 at 5:23:13 PM UTC-7, wrote:
Good read, it says the guy may have dropped the pack but it seemed ok.

"A survey of other FES batteries from the in-service fleet revealed the presence of metallic debris in a significant proportion of those batteries examined."

The solution is to improve warning and containment after a fire starts.
That seems good, but would less spare parts help with before the fire starts?

My guess is the pack builder is tightening up his process.
For now, no charge for the spare parts.
Longer term, looks like a really nice system.

The fix is not just improved warning and containment after a fire starts. From the article, it looks like the cells are packaged and protected much better now:
"The new FES battery features additional nomex-mylar insulation between the cells and an increased quantity of silicone encapsulation of the battery cells to prevent foreign objects from falling between the cells. The edges of the battery cells pouches are covered in an electrically-insulating tape to prevent electrical discharge of the cell should the cell pouch seal fail.. The stainless steel battery cell connector plates have been replaced with anodized aluminium plates which have been demonstrated not to eject machining swarf from screw threads when the connector screws are inserted during assembly."