hei

HEI Service

Service

Explore HEI's core technology, service model, and differentiators

HEI sets a new standard for data-driven diagnostics

Does battery diagnostics really have to be complex?

Legacy diagnostic methods depend on separate hardware such as sensors, test equipment, and lab analysis tools. They are difficult to run in active operations, take too long, and limit scalability in large battery fleets.

Conventional hardware-based solutions

Sensor monitoring

Requires extra sensors and cannot forecast future conditions

Charge/discharge metering

Requires additional test equipment, cannot diagnose while operating, needs hours for testing, and offers only limited forecasting

Electrochemical analysis

Requires additional analysis equipment, cannot diagnose in service, takes hours to test, and provides only limited future visibility

What makes HEI different

This solution is different.

HEI runs as a software-based solution without separate hardware deployment. Battery operators can adopt it with lower upfront and operating cost.

AI analyzes charging-data patterns to detect internal battery condition and early degradation signs

No extra hardware

Analysis within 1 minute

Future-ready forecasting

Diagnostics during operation

FDT technology

Where accurate diagnostics begins

HEI's FDT (Fluctuation-Dissipation Theory) technology analyzes signals generated during charging and uses current and voltage data to measure internal state changes in the battery with precision.

By extracting key degradation-related parameters and tracking them continuously, HEI can diagnose battery state of health (SOH) accurately and forecast future performance changes.

Data-only diagnostics with no extra hardware

High-precision battery SOH diagnostics

How HEI is deployed

HEI deploys flexibly for large-scale operators, security-critical organizations, and device makers that embed batteries. The delivery model adapts to each customer's operating environment.

Deployment optimized for security and operating fit

Cloud

Operations-first

Service flow

Data collection → Server upload → HEI analysis

Deployment fit

  • Large-scale battery system management
  • EV charging sites and ESS operations
  • Nationwide monitoring programs

Key strengths

  • Cloud-native data analysis
  • Fast deployment and scale-up
  • Unified monitoring support

On-premise

Security-first

Service flow

Data collection → Internal analysis → Secure results

Deployment fit

  • Public-sector and critical infrastructure
  • Closed-network operating environments
  • Sites with strict data-transfer restrictions

Key strengths

  • Runs on customer-owned servers
  • Higher security assurance
  • Data sovereignty protection

Embedded

Real-time protection

Service flow

Data collection → On-device analysis → Live detection

Deployment fit

  • Electric vehicles
  • Rail
  • Robotics
  • Industrial devices

Key strengths

  • Directly embedded in MCU/BMS
  • Real-time risk detection
  • Minimal network dependency

Tiered battery intelligence services

Battery status at a glance

Basic

Subscription / month

  • Traffic-light battery status check
  • Risk-tier classification
  • Early abnormality alerts

A more complete view of battery condition

Standard

Subscription / month

  • SOH history and forward projections
  • Comprehensive battery diagnostic report
  • Charging-pattern analysis
  • Cohort analysis results
  • Tailored care recommendations

Deeper AI analysis for higher confidence

Premium

Subscription / month

  • Everything in Standard
  • Deep-dive reporting
  • Anomaly detection analysis
  • Parameter-level diagnostics
  • AI battery analysis reports
  • Advanced consulting support

Transparent battery insight, a new standard for EV safety