High-Voltage Service

High-Voltage Battery Repair & Rebuild Solutions

EV batteries are high-cost, structural vehicle components. A minor underbody impact or a single faulty module often forces a full pack replacement, a cost that runs into five figures. YES-EU avoids that cost with targeted, component-level battery repair. By isolating and repairing the actual fault, we save 50-70% compared to a full pack replacement. Repairing saves you the purchase of a new battery pack, cutting claim costs for insurance companies and keeping maintenance predictable for fleet operators.

Component-Level Intervention vs. Full Pack Replacement

  • Five figures Cost of a full pack replacement
  • 50-70% Savings through targeted repair
  • 115 Certified high-voltage specialists
YES-EU high-voltage specialists in face shields and insulated gloves working on a traction battery module in the workshop
OEM-Aligned Technical Execution

Warranty-aligned repair, original parts.

Operating as an official European aftermarket NING Service partner, YES-EU carries out strictly warranty-aligned repairs. Our European network is staffed by certified high-voltage specialists who use direct OEM diagnostic support and original spare parts and modules. Every repair takes place in battery service workshops in compliance with European regulations, equipped for both minor defect corrections and major high-voltage system overhauls. Where the situation allows, our mobile technicians can also carry out repairs at the client's premises.

Repair capabilities

Major overhauls and minor corrections.

  • Module Replacement

    Targeted extraction and replacement of degraded or damaged battery modules using original OEM components.

  • Enclosure & Harness Servicing

    Precision enclosure resealing and high-voltage harness repair, resolving issues caused by underbody impacts.

  • System Component Replacement

    Replacement and repair of high-voltage contactors and interlock systems.

  • Thermal Management

    Diagnostics and mechanical repair of internal battery cooling systems.

Diagnostics, validation & certification

YES-EU manages the entire chain from incident intake to return-to-service.

What does "insurance-grade repair" mean?

An insurance-grade repair is one carried out to a standard that an insurer can accept and sign off. In practice this means the work uses original OEM parts and certified high-voltage specialists, the battery is tested after repair to confirm it is safe and performing correctly, and every step is documented in an audit-ready report the insurer can rely on for the claim.

Diagnostics & Checks

We run full Battery Management System (BMS) diagnostics, isolation testing, and thermal analysis to trace faults and measure remaining pack capacity.

Performance Validation & SoH Testing

Post-repair, batteries undergo strict performance validation and State-of-Health (SoH) testing.

Insurer-Ready Compliance Reports

We generate insurer-ready compliance reports, provide State-of-Health (SoH) certification for remarketing, and prepare assets for EU Battery Passport regulatory alignment.

Residual Value Extension

We generate official, audit-ready SoH reports that help extend and protect residual value, ensuring full compliance with EU Battery Passport mandates.

EU Battery Passport Alignment

Central to new European legislation is the EU Battery Passport, which requires transparent digital tracking of a battery's operational history, material composition, and State-of-Health (SoH).

Battery Pack Rebuilding & Reconditioning

For aging fleets, we rebuild battery packs to extend their working life.

  • Full pack rebuilding

    Full pack rebuilding and reconditioning.

  • Cell matching & balancing

    Precise cell matching and cell balancing.

  • State-of-Health restoration

    State-of-Health (SoH) restoration to maximize range and protect the battery's residual value.

Safety & compliance standards

ADR-compliant logisticsControlled discharge24/7 thermal monitoringQuarantine zonesFire suppressionSerial-level traceability
Safety, Logistics, and Traceability

Damaged high-voltage batteries demand strict safety and environmental controls.

  • Secure Logistics

    All transport uses ADR-compliant logistics, safe packaging, and controlled discharge protocols.

  • Facility Safety

    Workshop environments integrate 24/7 active thermal monitoring, dedicated quarantine areas, and specialized fire suppression systems.

  • Audit-Ready Traceability

    Every intervention includes serial-level tracking, providing full repair histories and insurer audit-ready compliance reports.

Across Europe, locally operated

Battery repair near you.

Operations and service workshops across Europe, so your repair happens locally instead of shipping a pack abroad.

Get in touch

Talk to a high-voltage specialist.

Reach out about component-level high-voltage battery repair, rebuild and coverage for your fleet or insurance operation.

Contact our team

Become a high-voltage battery specialist.

We are hiring and training high-voltage battery specialists across Europe, with a training path toward the YES-EU certification. Explore open roles and apply.

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