Technical Support | YUEGU Energy Storage Systems

Engineer-to-Engineer Support

Direct access to system design engineers. Expert guidance on lithium integration, BMS protocols, and field deployment without administrative barriers.

SERVICE SCOPE

Lifecycle Technical Services

End-to-end engineering support from BOM validation to operational maintenance and firmware optimization.

1

Pre-Sales Engineering

System sizing calculations, inverter compatibility verification, and detailed BOM preparation prior to manufacturing.

2

Installation & Commissioning

Remote guidance for electrical wiring, BMS configuration, protocol handshake, and initial system activation.

3

Operational Maintenance

Log-based troubleshooting, firmware updates, parameter optimization, and warranty spare parts coordination.

PHASE 1

Design & Validation

Technical validation ensures system components meet project load profiles and electrical specifications.

System Sizing

Battery bank capacity and C-rate calculation based on load analysis and required backup duration.

Deliverables:
Load analysis, capacity report.

Inverter Matching

Verification of BMS communication protocols (CAN/RS485/Modbus) against specific inverter brands.

Deliverables:
Protocol confirmation, pinout map.

BOM Generation

Comprehensive list including cables, breakers, mounting hardware, and monitoring peripherals.

Deliverables:
Itemized component list.

Technical Docs

Provision of electrical diagrams, installation manuals, and commissioning checklists pre-shipment.

Deliverables:
PDF Manuals, Wiring Diagrams.
PHASE 2

Deployment Support

Real-time remote assistance during physical installation and system startup via video or instant messaging.

Installation Guidance

Physical Mounting

Ventilation clearance verification, structural mounting procedures, and torque specification checks.

Wiring Verification

DC polarity check, communication cable pinout confirmation, and grounding continuity testing.

BMS Configuration

Setup of cell chemistry parameters, charge/discharge limits, and protection thresholds.

Inverter Handshake

Protocol activation and verification of data exchange between the battery BMS and inverter.

Commissioning

Initial activation, cell balancing observation, and load testing before handover.

YUEGU engineer providing remote video technical support

Support Channels

  • WhatsApp: +86 131 0672 8908 (Instant)
  • Email: charles@yvalleyenergy.com
  • Method: Video Call, Voice, Text, Logs
  • SLA: < 4 Hour Response (Business Days)
PHASE 3

Maintenance & Optimization

Sustained engineering support for system longevity, firmware upgrades, and performance tuning.

Diagnostic Analysis

Remote troubleshooting using BMS log data, voltage curves, and inverter error codes to identify anomalies.

Scope: Comms errors, imbalance, sensor calibration.

Firmware Upgrades

Distribution of updated BMS firmware to support new inverter protocols or improve SOC estimation algorithms.

Scope: Bug fixes, stability, new protocols.

Performance Tuning

Configuration adjustments based on historical usage data to maximize cycle life and system efficiency.

Scope: DOD settings, temp compensation.
ASSURANCE

Warranty Service

Our warranty process prioritizes system uptime. Rapid diagnosis and component replacement ensure minimal operational disruption.

Claim Workflow

  1. Reporting: Submit serial number and issue description via email/WhatsApp.
  2. Diagnosis: Engineer reviews logs to distinguish hardware vs. settings issues.
  3. Evaluation: Warranty validation (typically 24-48 hours).
  4. Resolution: Express shipment of replacement parts or units.
  5. Support: Guidance for part replacement and system restart.

Coverage Scope

Included
  • ✓ Cell capacity loss >20%
  • ✓ BMS hardware component failure
  • ✓ Manufacturing/Assembly defects
  • ✓ Communication interface malfunction
Excluded
  • ✗ Physical impact/accident damage
  • ✗ Improper installation (Water/Dust)
  • ✗ Inverter settings violation (Over-voltage)
Standard Term: 10 Years or 6000 Cycles.

Technical Support Access

Contact our engineering team directly for time-sensitive troubleshooting or project consultation.
Operating Hours: 09:00 - 18:00 (GMT+8)