Independent certification and valuation of EV batteries

Buyer’s peace of mind, seller’s edge.

The battery is the most expensive part of an EV — and the only one you can’t see. We give you an independent, certified assessment of its condition and value — before you sign.

CARA protocol compliance · 100% independent
Check your battery’s valueBHV estimate
Pick your car model:
0SOH · %
BHV score
0
Estimated battery value
0PLN
SOH
Mileage
Age · yrs
Indicative estimate — full result after diagnostics.
See how we calculate BHV

Every battery has a story.
We read it, certify it and value it.

0%
Independent assessment
0+
Parameters measured
0/7
Health monitoring
CARA
EU certification standards
Diagnostics & valuation

Precise engineering. Unmatched accuracy.

We combine certified test protocols with data analytics to assess the true state of a battery and translate it into concrete market value.

Full cell-parameter readout

Over 50 parameters — SOH, cell voltage balance, internal resistance, temperature and charge history — read directly from the BMS.

BHV algorithm — Battery Health Value

Our proprietary model converts cell health, degradation and market context into a single objective score and a residual value in PLN.

“Gold Standard” certificate

An independent, verifiable document confirming lifespan, safety and performance — recognised in sales, leasing and insurance.

Demo · BHV

Live residual valuation

Adjust the battery parameters and watch the BHV algorithm compute a health score and an estimated market value.

83BHV
Estimated residual value
38 400PLN
Excellent condition — fully fit for continued use.
92%
48 000 km
64 kWh
Battery journey

From connection to certificate

Every battery follows the same precise route — eight stages that turn raw data into trust.

01

Book a check

You submit your vehicle for verification. You pick a meeting time with our specialist that suits you.

02

Technician arrives

Our technician comes to the address you provide at the chosen time. You don’t have to drive the car anywhere yourself.

03

Device connection

The specialist connects a dedicated diagnostic device to the appropriate port in the vehicle. It is a completely safe, standard procedure for reading technical parameters.

04

Measurement (3 minutyes)

Reading data directly from the battery management system (BMS) takes only 3 minutyes. Raw operating parameters of the traction battery are collected.

05

Analysis in the app

The technical data goes straight into our dedicated application. The software automatically validates the readings against our procedures and safety standards.

06

Value calculation

The app computes the actual chemical wear of the cells and determines the vehicle’s real residual value — based on hard measurement data, not guesses about age or mileage.

07

Certificate generation

The system instantly generates a digital battery-condition certificate, secured against tampering. It contains a clear summary of cell health and a forecast of value decline over the coming years.

08

Document flow

The finished certificate carries evidential weight recognised by banks, insurers and courts across the European Union. Its verification status can also be linked to online listing portals.

Who it’s for

One assessment the whole EV market relies on

Dealers & resellers

A trustworthy battery assessment builds buyer confidence and speeds up used-EV sales.

Sales

Fleet operators

Fleet-wide battery health monitoring, replacement planning and fewer costly downtimes.

Fleets

Insurers

An objective residual battery value for claims, policies and repair-or-replace decisions.

Risk

Leasing companies

Accurate contract end-values and predictable depreciation for electric vehicles.

Leasing

Private owners

Confidence when buying or selling a used EV — no more guessing about battery condition.

Private

Recycling & second-life

Qualifying batteries for reuse or material recovery based on their real condition.

Circular
Contact

Let’s build the future of e-mobility together

Book a diagnostic, ask about a partnership, or request a BHV demo for your fleet.

Kielce Technology Park
Growing within the business incubator
Karola Olszewskiego 6, 25-663 Kielce
How can we help?
We reply within 24 hours on business days.