{"id":826,"date":"2026-07-16T11:51:02","date_gmt":"2026-07-16T11:51:02","guid":{"rendered":"https:\/\/autosmarts.co\/en\/library\/ev-battery-warranty-checklist\/"},"modified":"2026-10-14T15:31:33","modified_gmt":"2026-10-14T15:31:33","slug":"ev-battery-warranty-checklist","status":"publish","type":"libraries","link":"https:\/\/autosmarts.co\/en\/library\/ev-battery-warranty-checklist\/","title":{"rendered":"EV Battery Warranty Checklist"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">What this checklist covers<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">High-voltage battery claims are among the most expensive warranty claims a dealer handles, and manufacturers check them closely. A claim is usually approved or rejected on its evidence: the battery health report, the diagnostic logs, and proof the failure is covered. This checklist makes sure that evidence is complete before the claim goes in.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The EV Battery Warranty Checklist is a 15-point scorecard for battery warranty eligibility, health reports, diagnostic logs, charging history, approval process, and claim documentation. Each criterion is scored from 1 to 5 on what the auditor sees on the day, and every gap goes into an action plan with an owner and a close date.<\/p>\n\n\n\n<p class=\"as-chktip wp-block-paragraph\"><strong>AutoSmart tip:<\/strong> EV battery warranty claims are among the highest-value and most technically complex claims in the warranty process. The two most common rejection reasons are insufficient diagnostic evidence (health report not attached or not formatted correctly) and absence of pre-authorisation. Establish a documented battery warranty claim workflow checklist separate from standard warranty procedures, reviewed by the warranty administrator before submission.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">The checks<\/h2>\n\n\n\n<div class=\"wp-block-group as-checks is-layout-flow wp-block-group-is-layout-flow\"><p class=\"as-checks__note\"><span>Tap Yes, No or Maybe to try it: your answers stay in this page and clear when you refresh. For a detailed walkthrough, <a href=\"#get-pdf\">download our PDF<\/a> or <a href=\"https:\/\/autosmarts.co\/en\/book-a-demo\/\" data-as-track=\"demo\">book a demo<\/a>.<\/span><\/p>\n<div class=\"wp-block-group as-checksec is-layout-flow wp-block-group-is-layout-flow\">\n<h3 class=\"wp-block-heading\">Warranty eligibility and health report<\/h3><p class=\"as-checksec__meta\">4 checks<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"as-check\"><span class=\"as-check__no\" aria-hidden=\"true\">01<\/span><span class=\"as-check__body\"><span class=\"as-check__text\">Is the battery warranty eligibility verified \u2014 covering the specific battery warranty period (often separate from the vehicle warranty) and any capacity retention threshold applicable to the claim?<\/span><span class=\"as-check__answer\" role=\"group\" aria-label=\"Your answer\" hidden><button type=\"button\" data-answer=\"yes\" aria-pressed=\"false\">Yes<\/button><button type=\"button\" data-answer=\"no\" aria-pressed=\"false\">No<\/button><button type=\"button\" data-answer=\"maybe\" aria-pressed=\"false\">Maybe<\/button><\/span><\/span><\/li>\n\n\n\n<li class=\"as-check\"><span class=\"as-check__no\" aria-hidden=\"true\">02<\/span><span class=\"as-check__body\"><span class=\"as-check__text\">Is a battery health report (state of health, state of charge, cell balance, temperature history) generated using the OEM diagnostic tool and attached to every battery warranty claim?<\/span><span class=\"as-check__answer\" role=\"group\" aria-label=\"Your answer\" hidden><button type=\"button\" data-answer=\"yes\" aria-pressed=\"false\">Yes<\/button><button type=\"button\" data-answer=\"no\" aria-pressed=\"false\">No<\/button><button type=\"button\" data-answer=\"maybe\" aria-pressed=\"false\">Maybe<\/button><\/span><\/span><\/li>\n\n\n\n<li class=\"as-check\"><span class=\"as-check__no\" aria-hidden=\"true\">03<\/span><span class=\"as-check__body\"><span class=\"as-check__text\">Does the battery health report output confirm that measured capacity has fallen below the OEM-defined warranty threshold \u2014 rather than the claim being based on customer perception of range reduction alone?<\/span><span class=\"as-check__answer\" role=\"group\" aria-label=\"Your answer\" hidden><button type=\"button\" data-answer=\"yes\" aria-pressed=\"false\">Yes<\/button><button type=\"button\" data-answer=\"no\" aria-pressed=\"false\">No<\/button><button type=\"button\" data-answer=\"maybe\" aria-pressed=\"false\">Maybe<\/button><\/span><\/span><\/li>\n\n\n\n<li class=\"as-check\"><span class=\"as-check__no\" aria-hidden=\"true\">04<\/span><span class=\"as-check__body\"><span class=\"as-check__text\">Is the battery&#039;s VIN, serial number, and software version confirmed in the diagnostic report and cross-referenced to the vehicle&#039;s OEM records before claim submission?<\/span><span class=\"as-check__answer\" role=\"group\" aria-label=\"Your answer\" hidden><button type=\"button\" data-answer=\"yes\" aria-pressed=\"false\">Yes<\/button><button type=\"button\" data-answer=\"no\" aria-pressed=\"false\">No<\/button><button type=\"button\" data-answer=\"maybe\" aria-pressed=\"false\">Maybe<\/button><\/span><\/span><\/li>\n<\/ul>\n<\/div>\n\n\n\n<div class=\"wp-block-group as-checksec is-layout-flow wp-block-group-is-layout-flow\">\n<h3 class=\"wp-block-heading\">Diagnostic logs and charging history<\/h3><p class=\"as-checksec__meta\">4 checks<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"as-check\"><span class=\"as-check__no\" aria-hidden=\"true\">05<\/span><span class=\"as-check__body\"><span class=\"as-check__text\">Are diagnostic fault logs retrieved from the battery management system (BMS) and attached to the claim, providing OEM with visibility of any stored fault codes, charge events, or thermal anomalies?<\/span><span class=\"as-check__answer\" role=\"group\" aria-label=\"Your answer\" hidden><button type=\"button\" data-answer=\"yes\" aria-pressed=\"false\">Yes<\/button><button type=\"button\" data-answer=\"no\" aria-pressed=\"false\">No<\/button><button type=\"button\" data-answer=\"maybe\" aria-pressed=\"false\">Maybe<\/button><\/span><\/span><\/li>\n\n\n\n<li class=\"as-check\"><span class=\"as-check__no\" aria-hidden=\"true\">06<\/span><span class=\"as-check__body\"><span class=\"as-check__text\">Is the vehicle&#039;s charging history reviewed as part of the assessment \u2014 checking for patterns such as sustained high-frequency DC fast charging, deep discharge events, or charging at extreme temperatures?<\/span><span class=\"as-check__answer\" role=\"group\" aria-label=\"Your answer\" hidden><button type=\"button\" data-answer=\"yes\" aria-pressed=\"false\">Yes<\/button><button type=\"button\" data-answer=\"no\" aria-pressed=\"false\">No<\/button><button type=\"button\" data-answer=\"maybe\" aria-pressed=\"false\">Maybe<\/button><\/span><\/span><\/li>\n\n\n\n<li class=\"as-check\"><span class=\"as-check__no\" aria-hidden=\"true\">07<\/span><span class=\"as-check__body\"><span class=\"as-check__text\">Are BMS logs reviewed for any evidence of tampering, third-party software modification, or use outside the vehicle&#039;s specified operating parameters?<\/span><span class=\"as-check__answer\" role=\"group\" aria-label=\"Your answer\" hidden><button type=\"button\" data-answer=\"yes\" aria-pressed=\"false\">Yes<\/button><button type=\"button\" data-answer=\"no\" aria-pressed=\"false\">No<\/button><button type=\"button\" data-answer=\"maybe\" aria-pressed=\"false\">Maybe<\/button><\/span><\/span><\/li>\n\n\n\n<li class=\"as-check\"><span class=\"as-check__no\" aria-hidden=\"true\">08<\/span><span class=\"as-check__body\"><span class=\"as-check__text\">Is the diagnostic log submission formatted per the OEM&#039;s warranty documentation requirement \u2014 not submitted as screenshots or informal exports \u2014 to avoid rejection on technical grounds?<\/span><span class=\"as-check__answer\" role=\"group\" aria-label=\"Your answer\" hidden><button type=\"button\" data-answer=\"yes\" aria-pressed=\"false\">Yes<\/button><button type=\"button\" data-answer=\"no\" aria-pressed=\"false\">No<\/button><button type=\"button\" data-answer=\"maybe\" aria-pressed=\"false\">Maybe<\/button><\/span><\/span><\/li>\n<\/ul>\n<\/div>\n\n\n\n<div class=\"wp-block-group as-checksec is-layout-flow wp-block-group-is-layout-flow\">\n<h3 class=\"wp-block-heading\">Customer usage assessment and approval<\/h3><p class=\"as-checksec__meta\">3 checks<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"as-check\"><span class=\"as-check__no\" aria-hidden=\"true\">09<\/span><span class=\"as-check__body\"><span class=\"as-check__text\">Is the customer&#039;s stated usage (charging habits, typical range, environmental conditions) documented as part of the claim, to provide context for the battery health data?<\/span><span class=\"as-check__answer\" role=\"group\" aria-label=\"Your answer\" hidden><button type=\"button\" data-answer=\"yes\" aria-pressed=\"false\">Yes<\/button><button type=\"button\" data-answer=\"no\" aria-pressed=\"false\">No<\/button><button type=\"button\" data-answer=\"maybe\" aria-pressed=\"false\">Maybe<\/button><\/span><\/span><\/li>\n\n\n\n<li class=\"as-check\"><span class=\"as-check__no\" aria-hidden=\"true\">10<\/span><span class=\"as-check__body\"><span class=\"as-check__text\">Is pre-authorisation obtained from the OEM before any battery replacement is committed to the customer, where OEM policy requires pre- approval for battery warranty claims?<\/span><span class=\"as-check__answer\" role=\"group\" aria-label=\"Your answer\" hidden><button type=\"button\" data-answer=\"yes\" aria-pressed=\"false\">Yes<\/button><button type=\"button\" data-answer=\"no\" aria-pressed=\"false\">No<\/button><button type=\"button\" data-answer=\"maybe\" aria-pressed=\"false\">Maybe<\/button><\/span><\/span><\/li>\n\n\n\n<li class=\"as-check\"><span class=\"as-check__no\" aria-hidden=\"true\">11<\/span><span class=\"as-check__body\"><span class=\"as-check__text\">Is the customer clearly informed of the claim outcome \u2014 including any aspect of battery degradation found to be outside warranty scope \u2014 before the vehicle is released?<\/span><span class=\"as-check__answer\" role=\"group\" aria-label=\"Your answer\" hidden><button type=\"button\" data-answer=\"yes\" aria-pressed=\"false\">Yes<\/button><button type=\"button\" data-answer=\"no\" aria-pressed=\"false\">No<\/button><button type=\"button\" data-answer=\"maybe\" aria-pressed=\"false\">Maybe<\/button><\/span><\/span><\/li>\n<\/ul>\n<\/div>\n\n\n\n<div class=\"wp-block-group as-checksec is-layout-flow wp-block-group-is-layout-flow\">\n<h3 class=\"wp-block-heading\">Claim documentation and governance<\/h3><p class=\"as-checksec__meta\">4 checks<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"as-check\"><span class=\"as-check__no\" aria-hidden=\"true\">12<\/span><span class=\"as-check__body\"><span class=\"as-check__text\">Is a complete battery warranty claim file retained, covering the eligibility check, health report, BMS log, customer usage record, OEM pre-approval, and invoice?<\/span><span class=\"as-check__answer\" role=\"group\" aria-label=\"Your answer\" hidden><button type=\"button\" data-answer=\"yes\" aria-pressed=\"false\">Yes<\/button><button type=\"button\" data-answer=\"no\" aria-pressed=\"false\">No<\/button><button type=\"button\" data-answer=\"maybe\" aria-pressed=\"false\">Maybe<\/button><\/span><\/span><\/li>\n\n\n\n<li class=\"as-check\"><span class=\"as-check__no\" aria-hidden=\"true\">13<\/span><span class=\"as-check__body\"><span class=\"as-check__text\">Are replaced batteries tagged with the claim reference and retained per the OEM&#039;s parts retention policy, with no battery disposed of before OEM clearance is received?<\/span><span class=\"as-check__answer\" role=\"group\" aria-label=\"Your answer\" hidden><button type=\"button\" data-answer=\"yes\" aria-pressed=\"false\">Yes<\/button><button type=\"button\" data-answer=\"no\" aria-pressed=\"false\">No<\/button><button type=\"button\" data-answer=\"maybe\" aria-pressed=\"false\">Maybe<\/button><\/span><\/span><\/li>\n\n\n\n<li class=\"as-check\"><span class=\"as-check__no\" aria-hidden=\"true\">14<\/span><span class=\"as-check__body\"><span class=\"as-check__text\">Is battery warranty claim rejection rate tracked, with rejected claims reviewed for recurring patterns in documentation gaps or assessment methodology?<\/span><span class=\"as-check__answer\" role=\"group\" aria-label=\"Your answer\" hidden><button type=\"button\" data-answer=\"yes\" aria-pressed=\"false\">Yes<\/button><button type=\"button\" data-answer=\"no\" aria-pressed=\"false\">No<\/button><button type=\"button\" data-answer=\"maybe\" aria-pressed=\"false\">Maybe<\/button><\/span><\/span><\/li>\n\n\n\n<li class=\"as-check\"><span class=\"as-check__no\" aria-hidden=\"true\">15<\/span><span class=\"as-check__body\"><span class=\"as-check__text\">Is staff knowledge of battery warranty terms verified periodically \u2014 with service advisors and warranty administrators able to correctly describe the coverage threshold and documentation requirements without referring to a manual?<\/span><span class=\"as-check__answer\" role=\"group\" aria-label=\"Your answer\" hidden><button type=\"button\" data-answer=\"yes\" aria-pressed=\"false\">Yes<\/button><button type=\"button\" data-answer=\"no\" aria-pressed=\"false\">No<\/button><button type=\"button\" data-answer=\"maybe\" aria-pressed=\"false\">Maybe<\/button><\/span><\/span><\/li>\n<\/ul>\n<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Questions about this checklist<\/h2>\n\n\n\n<div class=\"wp-block-group as-faq is-layout-flow wp-block-group-is-layout-flow\">\n<details class=\"wp-block-details as-faq__item is-layout-flow wp-block-details-is-layout-flow\"><summary>Why are EV battery claims rejected?<\/summary>\n<p class=\"wp-block-paragraph\">Most often because the evidence is incomplete: no state-of-health report, missing logs, or no prior approval when the manufacturer requires it.<\/p>\n<\/details>\n\n\n\n<details class=\"wp-block-details as-faq__item is-layout-flow wp-block-details-is-layout-flow\"><summary>Who should check a battery claim?<\/summary>\n<p class=\"wp-block-paragraph\">The warranty administrator, with the EV technician confirming the diagnosis and evidence.<\/p>\n<\/details>\n\n\n\n<details class=\"wp-block-details as-faq__item is-layout-flow wp-block-details-is-layout-flow\"><summary>Is there a guide on EV readiness?<\/summary>\n<p class=\"wp-block-paragraph\">Yes: see our article on how OEMs audit EV readiness in dealer networks, linked below.<\/p>\n<\/details>\n<\/div>\n\n","protected":false},"excerpt":{"rendered":"<p>Check EV battery warranty claims before they are submitted: eligibility, battery health report, diagnostic logs, charging history, approval and claim documents.<\/p>\n","protected":false},"template":"","meta":{"footnotes":"","_as_roles":"Warranty administrators, EV technicians, service managers","_as_frequency":"On every battery warranty claim, plus a monthly sample 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