Chandan L S
Summary
Experienced Battery Systems Engineer specialising in design, development, and validation of battery systems from 12V to 1500V and 1kW to 800kWh. Expertise encompasses battery pack design, BMS-inverter integration, and large-scale validation testing, alongside UL 1973/1974 compliance and thermal management. Strong focus on optimising electrical performance and resolving integration challenges to enhance system safety and reliability.
Overview
1
1
Certification
7
7
years of professional experience
Work History
Battery System Engineer
Turno
Bengaluru
03.2024 - Current
- Led end-to-end design and development of 12-15 battery packs across LV and HV systems supporting applications up to 800 kWh
- Integrated battery systems with BMS and inverter/PCS systems, ensuring seamless functionality and performance
- Developed BMS-controlled adaptive cooling system improving thermal efficiency
- Executed UL 1973 / UL 1974 testing at cell and pack level
- Conducted large-scale testing of 1000+ cells and hundreds of battery packs
- Performed cell binning and characterization to improve performance and lifecycle
- Designed and built battery pack modules and prototypes, including wiring harnesses, electrical architecture, and system integration
- Designed HV master-slave architectures and parallelized up to 10 LV packs
- Designed busbars and optimized cable sizing, resolving electrical losses
- Resolved BMS-Inverter communication issues (CAN, RS485)
- Authored Statement of Requirements (SoR) and Design Verification Plans (DVP) to ensure alignment with project specifications and compliance standards
- Oversaw 4 engineers to streamline project delivery and foster collaboration across teams
- Conducted FAT and SAT for deployed systems
- Collaborated with sales and cross-functional teams
Technical Assistant - Facilities & Technical Operations
H&M and Happilo
01.2019 - 01.2024
- Managed electrical, fire safety, and security systems to ensure operational reliability
- Supported technical infrastructure and facility operations to maintain seamless functionality
- Conducted inspections and coordinated preventive maintenance to uphold safety and efficiency standards
- Ensured safety compliance and operational standards
- Resolved technical issues and ensured system uptime
- Contributed to Emergency Response Team initiatives
Education
Bachelor of Engineering (B.E.) - Electrical & Electronics Engineering
Cambridge Institute of Technology
Bengaluru, KA01-2019
Skills
- Battery pack design (LV/HV)
- Busbar design
- Cable sizing
- System architecture
- Thermal management
- Validation testing
- Safety compliance (UL, UN 383)
- BMS integration
- CAN communication
- PCS/inverter integration
- RS485 communication
- Battery testing
- Cell testing
- Impedance spectroscopy
- Resistance testing
- Safety validation
- KiCad design
- MATLAB programming
- SolidWorks Electrical (2D)
- Embedded C debugging
- System integration
- BMS optimization
- Testing protocols
- Cell characterization
- Project management
- Collaboration skills
- Troubleshooting skills
- Compliance standards
- Prototype development
- Documentation skills
- Testing execution
- System solutions
Certification
Battery + BMS Boot camp, 2024-08-01, 2025-06-01
Websites, Portfolios and Profiles
https://www.linkedin.com/in/chandan-l-s8693582b6/
Projects
- 60 kWh Battery Pack - Commercial Solar Storage System, Designed 60 kWh HV system (435-548V, ~480V nominal) for 70 kW solar. Enabled 0.5C continuous operation. Scalable up to 250 kWh. Integrated with 60kW Inverter systems. Optimized busbar & cable design. Conducted UL 1973 aligned validation.
- 211 kWh Battery System - Industrial BESS (Phase-1 of 800 kWh System), Developed 211 kWh system within 800 kWh architecture. Designed for 609V-766V (nominal ~672V). Integrated with 125 kW PCS. Designed for grid-connected industrial operation. Implemented master-slave & parallel architecture. Conducted validation, FAT, SAT.
- 10 kWh Battery Pack - Residential Energy Storage System (RESS), Designed 10 kWh LV pack (40-60V). Engineered for 0.25C-0.5C charge / up to 1C discharge. Defined architecture, BMS integration, wiring harness. Performed testing, binning, validation. Implemented BMS-controlled cooling. Executed FAT and SAT.
- Research Project, 2019-01-01, 2019-05-01, Smart Energy Meter - Multi-Utility Automated Billing System. Developed automated billing system for electricity, water, and gas. Funded by Karnataka State Council for Science and Technology in collaboration with Indian Institute of Science. Designed hardware architecture and control circuitry. Built functional prototype recognized for innovation.
Languages
Hindi
Advanced
C1
English
Proficient
C2
Telugu
Advanced
C1
Timeline
Battery System Engineer
Turno
03.2024 - Current
Technical Assistant - Facilities & Technical Operations
H&M and Happilo
01.2019 - 01.2024
Bachelor of Engineering (B.E.) - Electrical & Electronics Engineering
Cambridge Institute of Technology