Under Article 77 of the EU Battery Regulation, every EV battery above 2 kWh must carry a digital passport reached by QR code. This is Volterra’s reference viewer — the same record, revealed in five cumulative tiers so an owner can disclose exactly what each party is entitled to see, and nothing more. Pick a credential to unlock its tier.
🔒 Tier 2 — tap to authenticate as buyer / remarketer
Verified summary · Tier 2
94.2%
Exact state of health
93.1%
Capacity retention
7.8 yr
RUL median (95% CI 6.9–8.6)
Mar 2026
Last certification
🔒 Tier 3 — tap to authenticate as service partner
Health history · Tier 3
+18%
Resistance growth since new
Linear
Degradation pattern (no knee)
🔒 Tier 4 — tap to authenticate as fleet operator
Operational detail · Tier 4
412 MWh
Cumulative energy throughput
1,180
Equivalent full cycles
22%
DC fast-charge ratio
0
Thermal events on record
61%
Avg depth of discharge
18–34°C
Operating temp range
🔒 Tier 5 — tap to authenticate as regulator / recycler
Regulatory & second life · Tier 5
Second-life Grade A
AI assessment: linear degradation, zero thermal events, and 93% capacity retention qualify this pack for stationary energy-storage reuse. Estimated 6–8 further years at reduced duty.