Autel EV Diagnostics Upgrade Kit

Autel EV Diagnostics Upgrade Kit is an expansion package for compatible Autel MaxiSYS diagnostic tablets, adding advanced high-voltage system and traction battery diagnostic capabilities for electric and hybrid vehicles.

At the core of the kit is the Autel EVDiag Box, which provides communication between the diagnostic system's VCI or VCMI interface and the vehicle's high-voltage battery. Vehicle- and battery-specific adapters enable detailed analysis of supported battery packs, modules, and individual cells.

The EV Diagnostics Upgrade Kit is designed for professional workshops that want to expand standard EV diagnostics into advanced high-voltage battery analysis without purchasing a separate EV diagnostic tablet.

Features

• Advanced EV battery diagnostics — Adds high-voltage battery diagnostic capabilities to compatible MaxiSYS systems.
• EVDiag Box — Provides the communication interface between the diagnostic system and supported high-voltage battery systems.
• Battery pack analysis — Examine traction battery operating condition and data on supported vehicles.
• Battery module diagnostics — Analyze module-specific data and identify abnormalities.
• Cell-level data — View individual cell voltages and other available battery parameters on supported vehicles.
• SOC and SOH analysis — Supports vehicle-dependent State of Charge and State of Health analysis.
• Voltage and temperature data — View battery pack, module, and cell voltage and temperature information.
• Battery imbalance detection — Helps identify abnormal cells and battery modules.
• Vehicle- and battery-specific adapters — Includes adapters for direct diagnostics of supported high-voltage battery systems.
• Upgrade an existing MaxiSYS system — Add advanced EV diagnostics without purchasing a separate EV diagnostic tablet.
• Professional workshop use — Designed for workshops servicing and repairing electric and hybrid vehicles.

EV battery diagnostics

EV Diagnostics Upgrade Kit enables detailed high-voltage battery analysis on supported vehicles.

Available information may include:

• Battery SOC – State of Charge
• Battery SOH – State of Health
• Total battery pack voltage
• Battery module voltages
• Individual cell voltages
• Cell voltage differences
• Battery current
• Battery and module temperatures
• Battery management system DTCs
• High-voltage system status
• Battery-related Live Data

Available parameters and functions depend on the vehicle and battery system.

Applications

EV Diagnostics Upgrade Kit is suitable for:

• High-voltage EV battery diagnostics
• Hybrid vehicle HV battery diagnostics
• Battery pack health assessment
• Identifying abnormal cells
• Comparing battery modules
• Investigating battery temperature differences
• Checking battery SOC and SOH
• Troubleshooting high-voltage systems
• Battery inspection before and after repair

Compatibility

EV Diagnostics Upgrade Kit is designed for compatible Autel MaxiSYS diagnostic systems.

Current Autel product information associates the EV Upgrade Kit with systems including:

• Autel MaxiSYS Ultra S2
• Autel MaxiSYS Ultra
• Autel MaxiSYS MS919
• Autel MaxiSYS MS909
• Autel MaxiSYS MS919 S2
• Autel MaxiSYS MS909 S2

Package contents

• Autel EVDiag Box
• EV battery diagnostic adapters
• Vehicle- and battery-specific connection cables
• Test leads
• Probes and sensors
• Required connection accessories
• Storage / carrying solution

Exact adapter contents may vary depending on market region and kit version.

Please note

• EV Diagnostics Upgrade Kit is an expansion package and not a standalone diagnostic device.
• A compatible Autel MaxiSYS diagnostic tablet is required.
• Standard MaxiSYS software may already provide conventional diagnostics for electric and hybrid vehicles. The EV Upgrade Kit specifically adds advanced high-voltage battery and battery pack diagnostic capabilities.
• Vehicle, battery, and function coverage varies by application.
• High-voltage system diagnostics and repairs must only be performed by appropriately trained personnel using the required HV personal protective equipment and safe working procedures.
• Verify diagnostic tablet, software, and vehicle compatibility before performing high-voltage battery diagnostics.