{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9702940","patent":{"patent_number":"US-9702940","title":"Method and circuitry to calculate the state of charge of a battery/cell","assignee":null,"inventors":[],"filing_date":"2015-02-06T00:00:00.000Z","publication_date":"2017-07-11T00:00:00.000Z","cpc_codes":["H02J","H02J","H02J","H02J"],"num_claims":22,"abstract":"The present inventions, in one aspect, are directed to techniques and/or circuitry to applying a current pulse to the terminals of the battery during a charge, measuring a voltage at the terminals of the battery, selecting a relationship of an open circuit voltage to an amount of charge in the battery using data which is representative of a state of health of the battery, calculating an open circuit voltage of the battery using the voltage measured at the terminals of the battery, a current applied to or removed from the battery and an impedance of the battery, and determining a state of charge of the battery using (i) the calculated open circuit voltage and (ii) the relationship of the open circuit voltage to the amount of charge."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method and circuitry to calculate the state of charge of a battery/cell","description":"The present inventions, in one aspect, are directed to techniques and/or circuitry to applying a current pulse to the terminals of the battery during a charge, measuring a voltage at the terminals of ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9702940","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-9702940","citation_suggestion":"Patentable. \"Method and circuitry to calculate the state of charge of a battery/cell\" (US-9702940). https://patentable.app/patents/US-9702940","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9702940","json":"https://patentable.app/api/llm-context/US-9702940","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T07:14:51.396Z"}