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Applications
Start with the decisionApplications
Vehicle and charging station
EV TestingVehicle, EVCC and charging-release validation.EVSE TestingCharging-station development through field operation.InteroperabilityReal EV and EVSE in one synchronized test record.
Battery, MCS and EMC
BMS TestingCells, sensors, balancing and controlled faults.BMS + EVCC + OBCValidate the interaction of battery, charging controller and on-board charger.MCS TestingCommunication, signals, cooling and megawatt power.EV Charging EMCKeep charging communication observable under EMC stress.
Production, commissioning and calibration
EVSE End-of-LineRepeatable acceptance and unit-level results.Commissioning & Field ServiceCommission, diagnose and verify installed chargers with an EV charger tester.Calibration & MetrologyTraceable energy verification at the charging point.
Products
Start with the decisionProducts & PlatformsProduct Finder
EVCA
EVCA PlatformCommunication, interoperability, high-power, MCS and EMC paths.EVCA ComOnlyFocused charging communication testing.EVCA Multi MobilePortable laboratory and field analysis.EVCA InteropAnalyse interoperability between a real EV and EVSE.EVCA FlexModular high-power testing and controlled faults.EVCA MCSMegawatt charging communication, low-level signals and system testing.
Easy Chester
Easy Chester PlatformEVSE production, commissioning, service and calibration.Easy Chester MicroWallbox tester for AC chargersEasy Chester UltimateDC fast charger tester (AC/DC)Easy Chester CalimeraAC and DC EVSE calibration systemEasy Chester EOL / EOL HPCEVSE end-of-line production tester
Battery, software and EMC
Battery Cell SimulatorBMS testing from compact bench to high-voltage HiL.SmartCal calibration (accessory)Automated calibration and adjustment of the Battery Cell Simulator.EMC LinkOptical charging communication through the chamber boundary.
Software
Start with the decisionSoftware Capabilities
comframe and integration
comframeThe test software for every comemso system.Integration & APIsREST, Python, CI/CD and laboratory orchestration.Protocol & Domain ModulesSelect released domain depth.Capabilities HubConnect the capability model across EV, EVSE and BMS testing.EVCA Capability HubExplore the detailed EV charging capability stack.
Analyse and test
Automated Standards AnalysisMeasured behaviour, normative context and highlighted deviations.Professional SimulationConfigure nominal, boundary and non-conform behaviour.Manipulating GatewayTest a live correction hypothesis between real partners.
Reproduce and automate
Charge PlaybackReproduce the charging partner for the DUT.Charge Cycle AutomationTurn saved configurations into repeatable campaigns.
Knowledge
Start with the decisionStandards & Knowledge
Standards and test logic
Charging, Safety & EMCCharging behaviour, field safety, editions and test boundaries.Conformance Test LibrariesReleased executable test logic, verdicts and evidence.AFIR for EV ChargingRegulation, responsibility and verifiable evidence.NACS (SAE J3400)Charging communication tests for the North American Charging Standard.UL standards & EVSE field safetyUL requirements and electrical safety checks at installed charge points.
Methods and terminology
Knowledge CenterTechnical explanations, methods and application guidance.GlossaryStable charging and BMS test terminology.EVSE Calibration MethodsCompare controlled real load and reference measurement.Testing a wallboxProcedure, standards, limits and test report for electricians.ISO 15118 explainedParts, -2 vs -20, Plug & Charge and AFIR dates.Battery Cell SimulationCells, balancing, faults, precision and BMS HiL.
Documents and tools
Resources LibraryCurrent brochures, webinars, guides and checklists.BMS testing whitepaperTemperature, environment, simulation and test wiring.EVSE Inspection GuidePractical commissioning and inspection workflow.Charger Uptime CalculatorEstimate downtime and field-service impact.Technical newsletterChoose product updates and events relevant to your tests.
Company
Start with the decisionCompany
Company
About comemsoEngineering purpose, history and operating companies.Development & manufacturingShort paths from development to system testingQuality & CertificationsManagement systems, validation and calibration evidence.Customer ProofNamed stories, endorsements and published configurations.SustainabilityEnvironmental management and measured progress.
People and network
Customer Care TeamDelivery, commissioning, training and support.Sales PartnersRegional commercial and service access.CareersWork on deep e-mobility testing.
Updates and contact
News & EventsProjects, releases, webinars and company updates.Request a technical demoDiscuss your test task with the comemso team.ContactSales, support and locations in one place.

EV, EVSE and BMS test systems

Test systems for EVSE, EV and BMS teams – from lab bench to field service.

comemso builds EV and EVSE testers, BMS test systems and installation testers for development, production and service teams – instead of a bench assembled from separate sources, loads and analysers.1

Customers and regional partners in over 52 countries. Engineering and production in Germany since 2009.

Request a 15-minute demo Find your test system
comemso product portfolio with mobile, laboratory and production systems for EV charging and BMS testing
Product roleStarts with the device under test
Test boundaryYou define which interfaces are real and which are simulated
ConfigurationHardware and released software
ResultResults linked to the setup

A charging fault found in development costs a test run. Found in the field, it costs service calls, recalls and firmware rollbacks.

Portfolio map

Choose the product family for your test task.

EVCA Platform with comframe, EVCA ComOnly, EVCA Interop, EVCA Multi Mobile, EVCA Flex and IEC 61851-23 test rack

EV charging development and validation

EVCA Platform

Develop and test EV charging with communication analysis, conformance and interoperability testing, synchronised electrical measurements, high-power testing, MCS and EMC-related charging tests.

  • EVs, EVSEs and real charging pairs, tested
  • From protocol analysis to high-power testing
  • Laboratory and mobile configurations
Explore the EVCA Platform
Easy Chester Platform with Ultimate, Micro, EOL, EOL HPC and Calimera

EVSE lifecycle testing

Easy Chester Platform

Charging stations tested in production, commissioning, service, maintenance and inspection. Mobile calibration systems come to the installed station.

  • From production to operation
  • Guided operator workflows
  • Reports for each lifecycle task
Explore the Easy Chester Platform
BCS Platform with comframe and large and compact Battery Cell Simulator racks

BMS development and validation

Battery Cell Simulator

Defined cell, sensor, balancing, isolation and fault conditions make BMS tests repeatable. From compact setup to larger validation environment – sized to the task.

  • Cell and sensor simulation
  • Fault insertion and balancing
  • Automation and HiL integration
Explore the Battery Cell Simulator
comframe user interface for synchronized EV charging analysis displayed on an engineering monitor

Software, analysis and automation

comframe

EV charging and BMS tests, configured in one software: synchronised measurements, standards-aware analysis, simulation, automation and reporting. Supported systems connect through the available integration interfaces.

  • From test configuration to the report
  • Domain-specific analysis
  • REST, Python and laboratory integration
Explore comframe

Testing across charging and BMS systems

Connect EV charging and BMS behaviour in one test architecture.

Battery Cell Simulator and EVCA together test cell simulation, BMS behaviour, EV charging control and the physical charging interface. The configuration follows the DUT, interfaces, power requirements and results needed.

Explore EVCC + BMS integration
Combined BCS and EVCA test platform with comframe, EVCA ComOnly and 24U EVCA rack

Product portfolio

Find products by test task

Browse the complete product catalogue

EV charging development and analysis

EVCA systems and specialised charging interfaces

Compare the EVCA system paths
EVCA ComOnly communication test device
EVCA ComOnly

Develop EVCC (vehicle-side charging communication controller) and SECC (station-side charging communication controller) implementations with partner simulation, protocol analysis and applicable conformance testing.

Explore EVCA ComOnly
EVCA Interop measurement system
EVCA Interop

Records real charging pairs, correlates measurements to find causes, tests hypotheses and brings field recordings into the laboratory.

Explore EVCA Interop
EVCA Multi Mobile portable test system
EVCA Multi Mobile

Tests EVs, EVSEs (charging stations) and real charging pairs in the laboratory, at the vehicle or in the field. Mobile systems provide interfaces for multiple charging standards.

Explore EVCA Multi Mobile
EVCA Flex rack-based laboratory system
EVCA Flex

Modular EV and EVSE tests with scalable external power integration, electrical fault testing, high-power testing and standards-specific hardware.

Explore EVCA Flex
EVCA MCS test system
EVCA MCS

MCS tests for EVs, EVSEs and communication. Charging-specific signals and thermal interfaces combine with scalable power integration.

Explore EVCA MCS
EMC Link optical charging interface pair
EMC Link

Carry charging communication transparently into the EMC chamber over optical links. The measurement and test system stays outside the chamber.

Explore EMC Link
Original comframe view · EVCA
  1. Partner request: charging-message sequence.
  2. Device response: synchronised voltage and current traces.
  3. Result record: decoded messages and event data.
Original comframe view · EVCA
comframe

The shared EVCA software configures EV and EVSE tests, shows measurements in sync and automates test cycles.

Explore comframe

Charging-station lifecycle

Easy Chester systems

Compare the lifecycle paths
Easy Chester EOL production test system
Easy Chester EOL

Function, communication and parameter checks at the end of the production line, every unit the same way.

Explore Easy Chester EOL
Easy Chester EOL HPC production test system
Easy Chester EOL HPC

High-power EVSEs tested in production, with automation, safety measures and traceability matched to the process.

Explore Easy Chester EOL HPC
Easy Chester Micro compact AC EVSE tester
Easy Chester Micro

Portable AC installation and safety testing, with ISO 15118-2 communication using EIM authentication in the configured scope. ISO 15118-20 is planned for Q1/2027; see Micro’s protocol roadmap for the technical scope.

Explore Easy Chester Micro
Easy Chester Ultimate field test device
Easy Chester Ultimate

Guided workflows for commissioning, service, maintenance, repair verification and periodic inspection of installed charging infrastructure.

Explore Easy Chester Ultimate
Easy Chester Calimera mobile calibration system
Easy Chester Calimera

Calibrates charging stations and verifies their metrological performance at the point of operation.

Explore Easy Chester Calimera

Battery management system (BMS) testing and software

BCS Flex 5 HE compact Battery Cell Simulator
BCS Flex 5 HE
BCS Flex 12 HE Battery Cell Simulator
BCS Flex 12 HE
BCS Flex 38 HE high-density Battery Cell Simulator rack
BCS Flex 38 HE
Battery Cell Simulator

Develop and validate BMS functions with cell and sensor simulation, balancing and electrical fault testing.

Explore Battery Cell Simulator
Original comframe view · Battery Cell Simulator · Control
  1. Test requirement: cell and sensor setpoints.
  2. Response: the measured signal in the oscilloscope.
  3. Result context: the data view alongside the trace.
Original comframe view · Battery Cell Simulator · Control
comframe

comframe configures EV charging and BMS tests, records measurements in sync, analyses results, simulates behaviour, automates tests and creates reports. Supported APIs for integration.

Explore comframe software

A product for your test task

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01
I know what must be tested

Start from the application and the DUT.

 02
Compare product families

EVCA, Easy Chester and Battery Cell Simulator compared.

 03
Find your test solution

Choose DUT and test phase – we suggest suitable solutions.

Frequently asked questions

E-Mobility Test Systems & Platforms FAQ

How are test results documented?

Depending on the selected workflow, test records can include configurations, measured values, communication traces, evaluations and reports.

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Product configuration

Configure the system for your device under test and test task

We define DUT, interfaces, required ranges, software and results for the test.

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¹ Scope

Functions, interfaces, ratings and test scope depend on the system, the software release and your project configuration. The quotation confirms the scope for your project.