Comemso Launches Easy Chester Micro for AC Charger and ISO 15118 Testing
The 5.4 kg portable tester simulates vehicle communication and supports EU AFIR compliance checks without requiring a laptop.
German test-equipment maker comemso has introduced the Easy Chester Micro, a portable device designed to test AC wall boxes and charging stations for both charging functionality and ISO 15118 communication compliance.
What Happened
The Easy Chester Micro integrates an installation tester and an adapter box into a single 5.4 kg case rated IP 66. The device guides electricians and service teams through commissioning, maintenance, and inspection procedures using a 10.1-inch touchscreen, eliminating the need for a laptop or a customer vehicle. It simulates the vehicle according to IEC 61851-1 and SAE J1772 standards, measuring Control Pilot voltage, PWM duty cycle, and Proximity Pilot values via Type 1 or Type 2 AC inlets. For stations supporting ISO 15118-2, the tester establishes communication without an external protocol converter, while charging authorization can occur via External Identification Means such as an RFID card or app.
Why It Matters
This tool addresses the regulatory landscape in the European Union, where the Alternative Fuels Infrastructure Regulation (AFIR) has required new or renovated public charging points to comply with EN ISO 15118-1 to -5 since January 8, 2026. The Easy Chester Micro facilitates these checks by testing the station’s powerline communication chip and link, recording the Signal Level Attenuation Characterization setup, attenuation value, and PLC MAC address in its report. However, the device does not replace a full AFIR conformity assessment. Support for ISO 15118-20 is planned for the first quarter of 2027, and TLS-secured charging sessions are not currently supported. Optional safety tests are available to VDE and IEC standards, covering insulation and protective-conductor resistance as well as residual-current device testing.
The Bottom Line
The Easy Chester Micro offers a compact, all-in-one solution for field testing of AC chargers, particularly useful for verifying ISO 15118-2 communication in the context of EU regulatory requirements, though it serves as a preliminary check rather than a complete conformity assessment.
