State of Health (SoH)
The headline figure comparing current usable capacity against the battery's original factory capacity.
EV Battery Health Report Sample
See What a Navionyx EV Battery Health Report Looks Like
A real sample of the report buyers, dealers, and platforms use to verify battery condition before an EV resale transaction.
AIS 140 Certified
DPIIT Recognised
Built by an IIT Bombay Alumni
State of Health: 84%
Verified from BMS data — not a dashboard estimate or seller claim.
Resale Readiness Score
One combined number for faster, dispute-free pricing conversations.
The Used EV Transparency Gap
Why Used EV Buyers and Sellers Need to See This First
India's used EV market is growing quickly, but it is still missing the one document that gives both sides of a transaction confidence: a standardised battery health report. Unlike a petrol car, where an odometer reading and a service book tell most of the story, an EV's most expensive component, the battery pack, has no mandatory disclosure standard in India today. A seller is not required to hand over a State of Health reading, and a buyer often has no way to verify one beyond taking the seller's word for it.
This gap shows up directly in price negotiations. Early adopters who bought first generation EVs between 2020 and 2022, including the Tata Nexon EV, Tata Tiago EV, and MG ZS EV, are now reaching the used market in large numbers, often priced between seven and seventeen lakh rupees. Industry data shows State of Health on these four year old vehicles ranges widely, anywhere from the high seventies to around ninety percent, and that range is the difference between a battery that is functionally excellent and one approaching the point where replacement becomes a real conversation.
Before you download anything or commit to a transaction, you should know exactly what a credible battery health report contains and how to read it. That is the purpose of this page: to show you a real sample of the Navionyx EV Battery Health Report, the same document used in our dealership and resale platform certification programmes.
₹2 – 5 lakh
Estimated cost of a battery pack replacement depending on the model. This is the financial risk an uncertified used EV buyer carries into every unverified transaction.
77% – 91%
Typical State of Health range seen on four year old Tata Nexon EV, Tiago EV, and MG ZS EV units entering the used market in 2025 and 2026.
No mandate
India has no national requirement for battery health disclosure at ownership transfer. A voluntary certified report fills that trust gap directly.
Report Contents
What the Report Actually Measures
A trustworthy battery report goes well beyond a single percentage on a dashboard. The Navionyx report is built from data pulled directly through the vehicle's Battery Management System and presented in a format any buyer, dealer, or acquisition manager can read without an engineering background.
Charge Cycle History
Broken down by fast charge versus slow charge sessions, since heavy reliance on fast charging accelerates wear differently.
Cell Level Voltage Data
Across every module in the pack, not just a pack level average, so a single weak or imbalanced cell cannot hide behind a healthy looking score.
Thermal History
Flagging any periods where the pack ran hotter than expected, since heat exposure is one of the strongest predictors of accelerated degradation.
Remaining Warranty Status
Mapped against the manufacturer's SoH threshold for repair or replacement coverage.
Resale Readiness Score
A single Navionyx generated number that combines all of the above into one easy reference point for pricing conversations.
Sample Report Preview
A Look at the Real Document
The screenshots below are taken from an actual Navionyx EV Battery Health Report, with vehicle identifying details removed. The full version you receive after downloading will include every section shown here, generated for the specific vehicle you are evaluating.
Page 1 — Summary dashboard with SoH and resale readiness score
Page 2 — Cell level voltage table across all modules
Page 3 — Charge cycle and thermal history charts
Page 4 — Certification signature and validity details
All sample images on this page use anonymised data. Vehicle owner information, VIN, and registration details are never shown without consent.
Best Fit
Built for Every Side of a Used EV Transaction
Resale Platforms
Cars24, Spinny, Mahindra First Choice, and similar platforms use Navionyx battery scoring at acquisition to price vehicles accurately and reduce disputes after sale.
See our dedicated page for this audience once it is live.
Dealerships
Used EV dealers and certified pre-owned inventory managers attach a Navionyx Certificate to each listing to build buyer confidence and justify asking prices without lengthy negotiation.
See our dedicated page for this audience once it is live.
Individual Resellers
EV owners selling a personal vehicle use the same report to prove their battery is healthy and avoid the steep price cuts that uncertain buyers typically demand.
See our dedicated page for this audience once it is live.
Get the Complete Sample PDF
Fill in your details below to receive the complete sample EV Battery Health Report as a downloadable PDF, along with information on how to get your own vehicle certified.
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FAQ
Frequently Asked Questions
It is a diagnostic document generated from a vehicle's Battery Management System that summarises the battery's current condition, usually including State of Health, charge cycle history, and cell level data, so a buyer or seller can evaluate a used EV's battery objectively instead of relying on a verbal claim.
Not currently. There is no national mandate requiring battery health disclosure during an EV ownership transfer in India, which is part of why uncertified used EV transactions often involve aggressive price negotiation. A voluntary certified report like the Navionyx EV Certificate fills that gap.
State of Charge is the everyday percentage shown on the dashboard, similar to a fuel gauge, and it changes constantly as you drive and charge. State of Health is a slower moving measure of the battery's long term capacity compared to when it was new, and it is the number that actually matters for resale value.
Only if it comes from an independent, certified source rather than a self reported number. Look for a report that includes cell level data, not just a single SoH figure, and a clear test date, since these details are much harder to fake than a verbal claim of "battery is fine."
Once a vehicle is connected for diagnostic readout, a full report is typically generated within the same day, covering SoH, charge cycle history, cell voltage data, and the resale readiness score.
Yes. The Navionyx diagnostic process is built to read Battery Management System data across major EV brands sold in India, including Tata, MG, Hyundai, and Mahindra models.
Battery Verified Resale
Ready to certify your own vehicle's battery?
Get a Navionyx EV Certificate for your vehicle and give buyers the same confidence this sample report demonstrates.
AIS 140 Certified · DPIIT Recognised · Built by an IIT Bombay Alumni
This page was written with AI assistance and reviewed by the Navionyx team.
