Discover the SOH test for your car company
A quick electric car battery check in under 3 minutes, directly via the OBD port. No workshop visit, no long test drive, and no waiting time. You provide the buyer with hard proof instead of an assumption.

Why a battery certificate sells your used cars faster
The battery is the most expensive part of an electric car. As long as the buyer knows nothing about it, they will keep hesitating. And a hesitant buyer clicks through to the next advertisement. With a certificate, you move that conversation to the beginning of the sales process, where you can still do something with it.
More attention per advertisement
An advertisement with an objective battery certificate gives the buyer a reason to keep looking. The biggest doubt is gone before they even call.
Shorter standing time
The sooner the battery question is answered, the fewer laps a car will drive around the lot. You do not have to wait for a buyer to bring it up themselves.
Less discussion during trade-in
You buy based on measured values rather than on feeling. You recognize a car with a weak battery pack before you take it into stock.
“Since we started using CARA-approved certificates, our used electric vehicles sell faster and at higher margins.”
Youri van Dijk · Owner Your-drive.nl
“Thanks to the TBE technology, we have an independent and tamper-proof report of the actual battery condition within 3 minutes.”
Rex Nuyten · Head Salesperson, Vughterpoort Auto
How the SOH test for car companies works in four steps
Your mechanic does not need to take a course for it. The car remains where it is.
01
Dongle in the OBD port
The car does not have to leave the showroom or the lot. No lift, no test drive, no discharging from 100 to 10 percent.
02
Read in 3 minutes
The app automatically recognizes the vehicle and reads the Battery Management System. More than 680 models are supported.
03
Certificate in the file
You will receive a CARA Approved certificate as a PDF and as an image for the advertisement, linked to the chassis number.
04
In the advertisement
The buyer sees the actual remaining capacity and the cell balance. No stories from the seller, but a measurement.
A quick electric car battery check within 3 minutes
Competing methods require a dynamic test: driving the battery from full to nearly empty to calculate the capacity. This takes hours to days, costs man-hours, and ties up a car that you want to sell.
We measure statically. The data comes directly from the Battery Management System via the OBD port and is compared with our own database. The result does not depend on how full the battery is at that moment. Within a maximum of 3 minutes, your salesperson will have the result on their screen.
What does a SOH test cost for a car dealership?
A one-time fee for the toolkit, then per test performed. No subscription, no minimum purchase, and no costs for features you do not use.
Boarding
TBE Toolkit Basic
€59
OBD dongle for all models. For those who already have their adapter cables.
Most popular
TBE Toolkit
€99
OBD dongle plus one adapter cable of your choice and a plastic removal tool.
Complete
TBE Toolkit Pro
€299
OBD dongle plus seven adapter cables: all Tesla models and PSA.
All amounts are one-off and exclusive of VAT and shipping. For each battery certificate executed, you then pay € 29.95 excl. VAT, invoiced monthly in arrears.
What your salesperson shows to the customer
The certificate shows the State of Health as a percentage, the remaining capacity in kilowatt-hours, the voltage differences between the individual cells, and a final assessment based on the traffic light principle. Everything is linked to the chassis number, ensuring the report belongs to that specific car and not just a model.
The method is CARA Approved, the European standard for battery diagnostics. That is the difference between a printout from a universal scanner and a report that the buying party can rely on.
If you want the certificate to be visible outside the showroom as well, it can be included as an image in your sales photos or appear via a link in your own system. You can read about how that works on the page about SOH integration.
Frequently asked questions from car companies
Do my technicians need technical knowledge?
No. You plug the dongle into the OBD port, open the app, and the rest happens automatically. We will give you a call after delivery to explain how it works; that is all it takes.
Can the equipment change anything on the car?
No. The equipment retrieves data and does not send anything back to the vehicle. Settings remain untouched, error codes persist, and the manufacturer's warranty continues.
Does it also work for hybrids?
Yes. The same toolkit and the same method work for fully electric cars and for plug-in hybrids. One system for the entire inventory.
Can I link the results to my own systems?
Yes. Via our API, the report and raw measurements automatically land in your inventory system or valuation software, linked to the VIN.
Is your question not listed? View all frequently asked questions in the knowledge base.
Confidence that sells
That is not just a slogan under our logo. A buyer who is certain about what they are purchasing negotiates for a shorter time and backs out less often. Measuring is not an expense for you, but a selling point.