Battery testing for more confident vehicle sales
Optiledger helps car dealers test the battery health of electric and plug-in hybrid vehicles. Connect via OBD and receive a clear report for valuation and sale. Fixed monthly price with no per-test fee.
Strong partnerships across the automotive industry
Optiledger works with Kvdcars and InternalCars to make battery health a natural part of the valuation, testing and sale of used vehicles.
Read about our partnerships →
Clear decision support for valuation and sale
The report brings together test results, vehicle details and relevant battery data in a format that is easy to use internally and present to customers.
- Battery health and available capacity data
- Vehicle and test details on a single page
- A description of the method and clear caveats
A battery report for every vehicle you sell
Test the vehicle before valuation and show the buyer a clear report before the sale. Gain more structured evidence from trade-in to handover.
Learn more →See the complete test workflow
We will show you Optiledger from connection to completed report and tailor the walkthrough to your business and questions.
Book a demo →Check which electric and plug-in hybrid vehicles can be tested
See the latest model coverage and which vehicle variants the test workflow supports.
View model list → KnowledgeA practical knowledge base for battery health
Everything in one place: key concepts, the method and guidance for electric and plug-in hybrid vehicles.
Explore the knowledge base → SupportQuestions and answers, documentation and contact
Help with product questions, model coverage and next steps.
Get help →
From vehicle data to clear decision support
Optiledger connects through the vehicle’s OBD port, retrieves available battery values and compiles them for professional use. The method, data sources and limitations are presented in plain language.
Learn about the methodBattery health in practice
What is SoH? Understanding EV battery health
Torbjörn Sundström explains the difference between state of charge, capacity and actual battery health.
Read the article → Battery technologyHow lithium batteries work in electric and hybrid cars
Torbjörn Sundström explains cells, battery chemistry, the BMS and the factors that affect service life.
Read the article → MarketWhy battery health matters more in used-vehicle sales
How better battery information can support valuations and customer conversations.
Read the article →Frequently asked questions
Cannot find the answer? Contact us and we will be happy to help.
Contact usWhich vehicle models can be tested?
Model coverage varies between makes and vehicle variants. View the models page or contact us for the latest information.
Do staff need technical training?
No. The test is started with one tap in the mobile app, and the entire workflow is designed for salespeople rather than technicians.
Do you charge per test?
No. Optiledger is offered at a fixed monthly price instead of a fee for each completed test. This provides predictable costs even as test volumes increase.
What does State of Health mean?
State of Health (SoH) describes the condition of a battery compared with when it was new. The precise definition and calculation may differ between manufacturers.
What information does the report contain?
The content depends on the data made available by the relevant vehicle model. Our method page explains the data sources, analysis and known limitations.