96%
Sample SOH
Grade S
Sample rating
EV Battery Health Check by VIN for Chinese Electric Cars
Enter a VIN to get a full battery health report for Chinese electric and plug-in hybrid cars, including BYD, Geely, Chery and MG: battery SOH, degradation, real range, fast-charging history, cell consistency and estimated battery value. Check before you buy a used EV.
Private VIN Check
Your VIN and data are never shared
Real Battery Data
Based on the car's own battery records
Money Back Guarantee
Full refund if we can't produce a report
Why check the battery health of a used Chinese EV before buying
The battery is the most expensive part of an electric car, and a visual inspection can't show its condition. An EV battery health report by VIN shows battery degradation, real range and hidden faults in minutes.
Battery state of health (SOH) and grade
See how much of its original capacity the battery has kept, with a clear S to D grade you can understand at a glance.
Real range vs rated range
Compare the current full-charge range in km with the original rated range, so there are no surprises on the road.
Battery value for price negotiation
An estimated battery market value gives you facts to negotiate the price of a used electric car.
Fast-charging history and charging habits
Fast-charge share, average start and end charge level and charge depth show how the previous owner treated the battery.
Cell consistency and fault detection
Voltage, temperature and internal resistance consistency reveal weak cells before they become an expensive repair.
Battery swap, maker and warranty check
Find out whether the battery was swapped, who manufactured it, its chemistry, and what warranty it carries.
Sample EV battery health report
See exactly what you get: battery SOH, grade, real range, charging habits, annual inspection results and cell consistency. Your report has the same sections for your own VIN.
165 km
Current range
of 172 km rated
2%
Degradation
capacity lost
¥6,720
Battery value
estimated
21,333 km
Mileage
as of 2024-12-31
Battery health scores
Charging habits and fast-charge share
Alarm history
Battery annual inspection results
Max battery temperature
Limit ≤ 65.0 °C · Measured 58 °C
Max cell voltage
Limit ≤ 3.85 V · Measured 3.78 V
Cell voltage range
Limit ≤ 0.3 V · Measured 0.09 V
Min cell voltage
Limit ≥ 1.5 V · Measured 3.69 V
Battery cell consistency vs similar EVs
This car 3.9 °C · Average 4.1 °C
This car 114 mV · Average 120 mV
Battery specs
How to read an EV battery health report
New to electric cars? These are the numbers that matter when you check a used EV battery.
- Battery SOH (state of health)
- The percentage of the battery's original capacity it still holds. As a rule of thumb, 90% or more is excellent, 80–90% is good for an older car, and below 80% is a reason to negotiate or ask about the warranty.
- Battery degradation rate
- How much capacity the battery has lost so far. Lower is better, and it should be read together with the car's age and mileage.
- Fast-charging share
- The share of charging done on DC fast chargers over the last 12 months. Frequent fast charging can wear a battery faster.
- Charge depth and start/end charge level
- Shows whether the car was often run nearly empty or always charged to the top. Moderate cycles are gentler on the battery.
- Cell consistency (voltage, temperature, resistance)
- How evenly the individual cells behave. Large gaps point to weak cells, which can shorten range and battery life.
- Self-discharge score
- How well the battery holds its charge while parked. A low score can indicate internal faults.
Also buying a car from China? Run a free VIN check for Chinese vehicles to see specs and build data.
How to check an EV battery by VIN in 3 steps
Click Buy now
Choose the EV battery health report and continue to checkout.
Enter your VIN and pay
Type the 17-character VIN from the windshield, door jamb or registration papers, then pay once. No subscription.
Read your battery report
Your EV battery health report opens right away and a copy is sent to your email.
Order your EV battery health report by VIN
One VIN, one price, instant battery SOH report. No subscription.
EV Battery Health Report
For electric and plug-in hybrid cars only. Add it to any report at checkout, or buy it on its own.
- Battery health (SOH) & overall grade
- Current full-charge range vs original range
- Battery type, manufacturer & warranty
- Battery swap check
- Charging habits & fast-charge share
- Cell consistency: temperature, voltage & resistance
- Annual inspection pass / fail results
- Battery market value estimate
- Plain-English AI battery summary
You'll enter your VIN and pay on the next page.
EV battery health check: frequently asked questions
How do I check the battery health of a Chinese EV by VIN?
Click Buy now, enter the 17-character VIN of the electric or plug-in hybrid vehicle at checkout, and pay once. Your battery health report opens right away. It includes state of health (SOH), battery grade, real range, charging habits and cell consistency scores.
What is battery SOH (state of health)?
SOH is the share of the battery's original capacity it still has. A 96% SOH means the battery has lost about 4% of its capacity. It is the single most useful number when buying a used EV.
What is a good battery health percentage for a used EV?
As a rule of thumb, 90% or more is excellent, 80–90% is good for an older car, and below 80% deserves a price discount or a closer look at the warranty. Age, mileage and charging habits matter too, so read the full report.
Which Chinese electric car brands can I check?
We support electric and plug-in hybrid vehicles from many Chinese brands. Coverage depends on whether battery data exists for your VIN. If we can't produce a report, you get a full refund.
Can I check a plug-in hybrid (PHEV) battery too?
Yes. The report works for plug-in hybrids as well as fully electric cars, and shows the power type of the vehicle.
What if there is no battery report for my VIN?
You get a full refund. You are not charged for a report we can't produce.
How accurate is the estimated battery value?
It is a market estimate based on the battery's condition and age. Use it as a negotiating reference when pricing a used EV, not as a fixed price.
Does the report show fast-charging history?
Yes. It shows the share of fast charging over the last 12 months, plus average start and end charge level and charge depth, so you can see how the car was charged.
How fast do I get the report and is my VIN private?
You get the report right after payment, and a copy is sent to your email. Your VIN and email are only used to produce and deliver your report.
Have a Question?
Reach out by email, message us directly, or send us the details below and we'll get back to you.
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