SHU-04

Degradation trajectory

SoH history + linear projection to 80.0% end-of-life

Charge–discharge optimization

engine-generated actions, highest leverage first

Cap DC fast-charge share below 25% (currently 69%)

High-C-rate sessions drive lithium plating and heat. Shift toward overnight AC charging where the duty cycle allows.

Hold depot charge ceiling at 80% SoC unless full range is scheduled

Time spent at high state-of-charge is the dominant calendar-aging driver. Charge-to-need before departure.

Enable active pre-conditioning and cooling before fast charge; inspect coolant loop

Elevated pack temperatures and thermal excursions were logged. Keeping cells under 35°C during charge cuts fade sharply.

Schedule cell-balancing and a full capacity test at next service

Rising internal resistance / non-linear fade suggests cell divergence. Balancing recovers usable capacity and flags weak modules.

Prioritise teardown inspection and plan replacement or second-life redeployment

Asset is at or near end-of-first-life. Grid-storage second life can recover residual value below 80% SoH.