Job Title:
Field Service Technician – Battery & Energy Storage Systems

Department:
Service / Operations

Reporting To:
System Engineer - Battery

Role Summary

We are looking for a Field Service Technician to support installation, commissioning, troubleshooting, preventive maintenance, and repair of Lithium-ion battery packs, ESS/BESS systems, UPS/inverters, and associated electrical equipment. The candidate will work closely with service engineers, battery engineers, BMS teams, and customers to ensure reliable and protected operation of deployed battery systems.

Key Responsibilities

1. Installation & Commissioning:
- Support installation of lithium-ion battery packs, ESS units, BMS, UPS/inverters, cables, connectors, and protection devices.
- Perform basic electrical wiring and termination as per approved drawings.
- Assist in battery pack installation, commissioning, and functional testing.
- Verify polarity, voltage, communication connections, grounding, and protection devices.
- Support inverter–battery communication configuration.




- Record commissioning parameters and test results.

2.Troubleshooting & Service:
- Diagnose basic electrical, BMS, inverter, charging, and communication issues.
- Perform first-level troubleshooting of: o BMS alarms and faults o Cell over-voltage / under-voltage o Over-temperature / under-temperature o Over-current protection o Communication failures o Charging/discharging issues o Inverter/UPS faults o Contactor, fuse, MCB and wiring issues
- Use Multimeter, DC clamp meter, insulation tester, Peak CAN, CAN/RS485 tools and other service equipment.
- Escalate complex electrical, BMS, firmware, or software issues to senior engineers.
- Replace defective components/modules under approved service procedures.

3. Preventive Maintenance:
- Conduct scheduled inspection of deployed battery systems.
- Check: o Battery voltage o Cell voltage spread o Temperature o SOC/SOH o BMS status o Charging/discharging current o Cable and connector conditio

📌 Field Service Technician (Bengaluru)
🏢 People at Turno
📍 Bengaluru