{"compile":"2026-10-10","canonical":"https://aaronspradlin.grok.me/wiki/battery-atlas","json":"https://aaronspradlin.grok.me/page.json?slug=battery-atlas","license":"Source-available for noncommercial research and evaluation only. No commercial, product, platform, or service use without written permission.","scientific_breakthrough":false,"slug":"battery-atlas","title":"Battery recoverability (V720–V724)","dek":"NASA PCoE LCO relaxation trajectories: active restoration-deficit beats passive snap distance — an applied recoverability assay.","updated":"2026-05-19","status":"applied","claim":"restricted","tags":["battery","NASA","V720","applied"],"related":["recoverability","restricted-bridge","proofs-and-simulations","c3-governor","applied-stack"],"packages":[{"id":"battery","name":"battery","path":"Tmp/TOE/battery","status":"supported"},{"id":"v724-stress-test-outputs","name":"v724_stress_test_outputs","path":"Tmp/TOE/v724_stress_test_outputs","status":"restricted"}],"notes":[{"id":"tesla-letter-2026-05-19","title":"NASA battery assay and Tesla letter","date":"2026-05-19","xUrl":"https://x.com/aaronspradlin/status/2056532353804370341"}],"claims":[{"status":"supported","text":"On this public NASA dataset and the published synthetics, active restoration-deficit scoring outperforms passive snap. This is an applied recoverability result. It does not solve battery aging and does not derive field equations.","noteId":"tesla-letter-2026-05-19"}],"text":"The retained-atlas framework was pressure-tested on the NASA PCoE LCO battery dataset (V720) and on synthetic assays V723/V724. Passive “snap distance” (instantaneous voltage drop) delivers AUC 0.6366 and is already collapsing toward chance. Integrated restoration-deficit metrics — early_auc, tail_auc, full_auc — reach AUC 0.9326 and Spearman 0.8715 to capacity loss. Residualizing out the initial snap still leaves AUC 0.8655.\n\nV723 holds passive burden metrics at chance (~0.500) while active adm_z separates perfectly (AUC 1.000) in the synthetic. V724 adds overlapping k, nonlinear saturation, reserve fatigue, stochastic stalls, and shortened windows; signal holds at ≈0.845. Geometry-like structures (curvature concentration, geodesic relaxation, stress localization) are reported as emergent in the assay, not imposed.\n\nOn this public NASA dataset and the published synthetics, active restoration-deficit scoring outperforms passive snap. This is an applied recoverability result. It does not solve battery aging and does not derive field equations.\n\nA 18 May 2026 open letter (posted from the account, attributed as a Grok draft) argued Tesla already collects the relevant rest-window voltages in BMS health checks. That is advocacy built on the assay, not a Tesla collaboration claim. The original V723/V724 assay video is 18 May: passive burden held equivalent, active perturbation-response still showing restorative structure — observation only, synthetic, falsifiable.\n\nV723/V724 assay video (X)\nTesla letter thread (X)","howToCite":"Spradlin, A. (2026-10-10). Battery recoverability (V720–V724). Retained Atlas. https://aaronspradlin.grok.me/wiki/battery-atlas. Keep claim badge: restricted."}