The battery is being so heavily modified it isn't the same battery any longer:
1. Improved cell manufacturing process
2. Additional testing of completed cells.
3. Larger cell relief vents
4. Ceramic heat shielding between cells and between cells and battery case.
5. New intercell link nuts
6. Reduced maximum charge voltage limit combined with increased minimum cell discharge voltage
7. Modifications to the battery internal electronic monitoring logic that monitors cell balancing, charge levels and temperature.
8. Modifications to the battery charger, to accommodate the revised charge/discharge figures.
Then we come to the containment box.
3mm thick stainless steel case with the lid held on by 52 bolts! Scheduled battery changes now become a two hour job. Is it necessary? Will the public be reassured by a modification that includes putting a part of the aircraft into an explosion proof container, or will they assume that an unacceptable risk of serious failure remains?
I think the answer lies in many of the above answers by those unaware of the actual situation. This whole thing has been and remains a
pR disaster.