View our solutions
Test within 3 minutes with an independent, user-friendly SOH tester.
Does a hybrid battery tester work differently than for a fully electric car?
Yes and no. The principle remains the same: we read the Battery Management System via the OBD port. The difference lies in the size. A plug-in hybrid carries a pack of 8 to 20 kWh, whereas a fully electric car can easily have 77 kWh lying under the floor.
That smaller pack works harder. On every trip, the system switches between charging and discharging dozens of times. Those cycles add up. Yet wear and tear is noticed much later in a hybrid, simply because the petrol engine fills the gap as soon as the battery runs dry. The driver doesn't notice a thing, until the electric range suddenly turns out to be cut in half.
Our hybrid battery tester uses the same method and provides the same CARA Approved certificate. For a car dealership taking trade-ins, this means one toolkit for the entire inventory. No second system, no separate procedure.
Eliminating the blind spot in electric driving
The transition to electric driving raises questions. Both consumers and car companies regularly run into a wall of uncertainty when it comes to battery life. The battery is by far the most expensive part of an electric car or plug-in hybrid. A replacement battery pack easily costs between €7,000 and €15,000. Anyone who buys or trades in a used EV without knowing the exact state of the battery is taking an irresponsible financial risk. At The Battery Experts, we translate complex data streams into one crystal-clear conclusion. No hype, no fine print. What we measure is what we say.
Several studies show that battery degradation is a real phenomenon. In 2023, telematics company Geotab analyzed the data of thousands of electric vehicles and concluded that an average EV battery loses about 1.8% of its capacity per year. This percentage varies greatly based on charging behavior, climatic conditions, and the specific model. A vehicle that is structurally charged to 100% at a fast charger in full sun degrades significantly faster than a car that is neatly trickle-charged to 80% on a driveway. Without objective measurement, you are completely in the dark. We stand by the customer, whether that is a private individual or a fleet manager, to eliminate that blind spot for good.
How do you check the battery of a used EV in practice?
Many buyers focus blindly on the range displayed on the dashboard when the battery is fully charged. This so-called Guess-O-Meter is based on driving behavior from recent trips. If the previous owner drove very gently, the screen will show a generous range. As soon as you hit the highway, that range melts away like snow in the sun. Reading the actual health of the battery requires specialized equipment.
When you use an electric car battery tester, you communicate directly with the vehicle's Battery Management System (BMS). This brain records every charge cycle, measures temperature fluctuations, and monitors the imbalance between individual battery cells. Our method reads that raw data flawlessly. We look at the state of charge, the degradation over time, and the number of times the car has undergone DC fast charging. The result is a report that displays the actual capacity compared to the factory value, expressed as an exact percentage.
The fastest way to measure EV battery health
Via the On-Board Diagnostics (OBD) port, our equipment reads the statistical data directly from the BMS. Within exactly 3 minutes, you will have the complete result on your screen. The car does not even need to leave the workshop lift or the showroom. We also offer direct insight into more complex hybrid systems: our hybrid battery tester automatically recognizes the vehicle and executes the specific protocols at lightning speed.
What does a reliable EV battery diagnosis cost?
Transparency starts with fair rates. The fear of sky-high diagnostic costs sometimes discourages people from getting a test done. We have radically lowered that barrier. For private consumers who want peace of mind before or after buying a used car, a complete diagnosis including a certificate costs exactly €80 including VAT. You know exactly where you stand, with no hidden costs afterwards.
For the business market, we apply volume pricing that aligns with efficient business operations. Car companies, leasing companies, and fleet owners who use the TBE Toolkit perform a measurement starting at €29.95 excluding VAT per test. Contrast that amount with the margin you gain from a transparent sale, or against the loss you prevent by not trading in a car with a faulty battery. The return on investment is immediately visible. While other parties charge hundreds of euros for a slow test-drive method, we offer speed at a fraction of the price.
How do you obtain an official SOH certificate?
A measurement only gains value when the outcome is objective and recognized. Self-printed sheets from universal garage scanners offer no legal or commercial certainty. Our reports provide an official SOH (State of Health) certificate that is CARA Approved. This accreditation serves as the gold standard within the European battery testing market. It proves that the methodology followed is independent, reproducible, and scientifically backed.
Consumers simply request a test via our platform or drop by one of our affiliated partners. After a quick measurement with our state-of-health battery tester, a secure digital certificate is generated. That document instantly increases the car's residual value. The seller provides solid proof, and the buyer drives away without any nagging doubts.
Which professional solution should car companies choose?
For the professional buyer or fleet owner, a scalable solution is required. Every day, different makes and models enter the workshop. You don't have time to study protocols for hours. In practice, buying a SOH tester often means choosing between cumbersome systems or expensive subscription models where you pay for features you don't use. The Battery Experts provides the TBE Toolkit.
This robust case contains our OBD dongle and the necessary adapters for a wide range of car brands. The system is completely brand-independent. You plug in the hardware, open the application, and the rest is automatic. We guide your mechanics and salespeople through the initial setup, without being patronizing. We provide local support from the Netherlands, with a rollout to Belgium and Denmark. Encountering a fault? You get a specialist on the line immediately. No AI agents, no call center with a script. Reported today, resolved today.
Guaranteeing a reliable reading
The market is flooded with cheap dongles that clear fault codes and show limited data. Be warned. A real battery tester for an electric car goes much deeper than the surface. Our equipment identifies the smallest voltage differences between the battery cells in the pack. A difference of just a few millivolts between cells sometimes indicates impending trouble, long before the car itself displays an error message on the dashboard. The investment in high-quality battery testing equipment for electric cars pays off when discovering that one problematic case that would otherwise have resulted in thousands of euros in losses. Through The Battery Experts, you bring independent certainty into your home, supported by local experts who understand how a car company operates.
Seamless integration with your business systems
Manually rekeying data is outdated. It leads to administrative errors and wastes unnecessary time. Our systems are built with the most modern API architecture. This means the results from our state of health tester communicate directly and securely with your existing dealer management systems or appraisal software. As soon as the OBD dongle completes the measurement, the SOH report automatically appears in your own digital customer file.
This level of automation streamlines the entire process within the automotive company. The direct integration saves hours of manual work, allowing the focus to remain entirely on the customer and sales.
All versions work brand-independently and without a subscription. You pay €29.95 excl. VAT per performed test. Prices exclude VAT and shipping.
Boarding
TBE Toolkit Basic
€59
excl. VAT and shipping, one-time
— OBD dongle, suitable for all models
— For those who already have adapter cables
— To be expanded later
Most popular
TBE Toolkit
€99
excl. VAT and shipping, one-time
— OBD dongle, suitable for all models
— 1 adapter cable: Tesla Model 3/Y or PSA
— Plastic removal tool
Complete
TBE Toolkit Pro
€350
excl. VAT and shipping, one-time
— OBD dongle, suitable for all models
— 7 adapter cables: all Tesla models and PSA
— Plastic removal tool
What happens after you have ordered?
01
Toolkit at home
Your order will be shipped the same day. Within 1 to 2 business days, the suitcase will be on your doorstep, ready for use. Shipping costs are calculated at checkout.
02
Account and brief explanation
You will get immediate access to the TBE platform. We will call you to explain how it works. No course, no forty-page manual — your technician will be on their way within fifteen minutes.
03
Measure and pay afterwards
From that moment on, you only pay per performed test: € 29.95 excl. VAT per battery certificate, invoiced monthly in arrears. No subscription, no minimum purchase.
What our customers say
Youri Van Dijk
Owner of Your-drive.nl
Since we started using CARA-approved certificates, our used electric vehicles sell faster and at higher margins. It gives both us and the customer 100% confidence during the trade-in.
Rex Nuyten
head salesperson and maintenance advisor
At Vughterpoort Auto, we leave nothing to chance. Thanks to TBE technology, within 3 minutes we have an independent and tamper-proof report of the actual battery condition. Maximum transparency.
Barlou Boerbooms
Ioniq 5 owner
I was able to buy my Ioniq 5 second-hand with confidence. Thanks to the TBE SOH certificate, I knew not only the SOH but also how the battery cells were doing, which was the deciding factor in choosing this car.
Frequently asked questions about the TBE Toolkit
How do I obtain an official SOH certificate?
As a consumer, you book a test via our platform for €80 including VAT. Within 3 minutes, our equipment reads the car's data and you receive a CARA Approved certificate in your mailbox. As a car company, you print the certificate yourself using the TBE Toolkit.
Which professional SOH tester for car dealerships should I buy?
Choose a system that is brand-independent, offers local support, and does not slow down the showroom workflow. The TBE Toolkit offers all of that, with API integrations for your current systems and a rate of € 29.95 excl. VAT per test.
What is the best battery testing equipment for hybrid and electric cars?
The best equipment reads static data directly from the BMS via the OBD port, without the need for test drives. The Battery Experts covers an extremely wide range of brands, for both fully electric cars and plug-in hybrids.
What is the fastest way to measure the EV battery status?
The static OBD measurement by The Battery Experts. Unlike discharging while driving, this method takes only 3 minutes, while the reliability of the BMS data remains fully intact.
Are you unsure which version you need?
Call +31 35 234 0072 and you will directly reach a specialist who understands how a car dealership works. No call center, no script.