Featured in Domain Arrivals · 2026-08-16

Cellworth's Battery Health Certificate

Cellworth estimates the health and remaining useful life of electric-vehicle batteries from existing charging telemetry, without teardown, test rigs, or added vehicle hardware.

Why it surfaced

This is a sharply defined attempt to make battery health transactable: Cellworth reports a certified figure with a calibrated interval as a PDF, JSON payload, or REST endpoint. The site cites 0.94–1.31 percentage-point RMSE across 136 held-out cells in NASA, Oxford, and Stanford degradation datasets, giving its unusually specific promise something concrete to investigate.