Battery System Requirements Checklist

# BATTERY SYSTEM REQUIREMENTS CHECKLIST

## Project Information
Project Name: ___________________________________
Date: ___________  Version: _____  Author: ___________

## 1. ELECTRICAL REQUIREMENTS

□ Nominal voltage: _______ V
□ Operating voltage range: _______ V (min) to _______ V (max)
□ Usable energy capacity: _______ kWh
□ Continuous power: _______ kW
□ Peak power: _______ kW for _______ seconds/minutes
□ Charge rate: _______ C-rate or _______ kW (if applicable)
□ Load profile type: □ Constant power  □ Pulsed  □ Regenerative
□ Efficiency target: _______% (discharge or round-trip)
□ Verification method: □ Analysis  □ Test  □ Demonstration

## 2. PHYSICAL REQUIREMENTS

□ Maximum dimensions: _____ mm (L) × _____ mm (W) × _____ mm (H)
□ Maximum mass: _______ kg
□ Mounting interface: ______________________________
□ Center of gravity location: _______ (if critical)
□ Connector locations: _____________________________
□ Accessibility requirements: _______________________
□ Verification method: □ Inspection  □ Analysis  □ Test

## 3. ENVIRONMENTAL REQUIREMENTS

□ Operating temperature range: _____ °C to _____ °C
□ Storage temperature range: _____ °C to _____ °C
□ Altitude (pressure) range: _______ to _______ ft or kPa
□ Vibration profile: □ Reference: ____________  □ Custom: ___________
□ Shock levels: _______ G, _______ ms duration
□ Humidity exposure: _______ %RH, _______ °C
□ Ingress protection: IP _____ (dust/water)
□ EMC requirements: _______________________________
□ Verification method: □ Test per standard  □ Analysis

## 4. SAFETY & PROTECTION REQUIREMENTS

□ Safety interlock: □ HVIL required  □ E-stop response: _____ ms
□ Fault detection: □ Overvoltage  □ Undervoltage  □ Overcurrent  □ Overtemp
□ Protection thresholds: (specify as % or "to be coordinated")
  - Overvoltage: _______
  - Undervoltage: _______
  - Overcurrent: _______
  - Overtemperature: _______
□ Isolation resistance: _______ MΩ minimum
□ Fail-safe behavior: _______________________________
□ Applicable standards: □ IEC 62619  □ UL 2271  □ SAE J2464  □ Other: _______
□ Verification method: □ Test  □ Analysis  □ Inspection

## 5. INTERFACE REQUIREMENTS

Electrical Interface:
□ Connector type: _______________________________
□ Pin assignments: _______________________________
□ Mating connector: _______________________________

Mechanical Interface:
□ Mounting pattern: _______________________________
□ Thermal interface material: _______________________

Thermal Interface (if applicable):
□ Coolant type: _______________________________
□ Flow rate: _______ L/min
□ Inlet temperature: _______ °C
□ Inlet/outlet locations: _______________________

Communication Interface:
□ Protocol: □ CAN  □ CAN FD  □ Modbus  □ Other: _______
□ Baud rate: _______
□ Message structure: Reference ICD or specify: _____________
□ Update rate: _______ Hz
□ Verification method: □ Inspection  □ Test

## 6. LIFECYCLE & PERFORMANCE REQUIREMENTS

□ Cycle life: _______ cycles to _______% capacity retention
□ Calendar life: _______ years to _______% capacity retention
□ SOC estimation accuracy: ± _______%
□ SOH estimation accuracy: ± _______%
□ Power response time: _______ ms for step change
□ End-of-life criteria: _______________________________
□ Verification method: □ Test  □ Analysis  □ Demonstration

## 7. VERIFICATION APPROACH

Requirements Verification Matrix:
□ All requirements assigned unique IDs (format: BATT-XXX-###)
□ Verification method identified for each requirement
□ Test procedures identified or TBD flagged
□ Acceptance criteria defined (quantitative or category)
□ Traceability to design and test documented

Test Environment Needed:
□ Thermal chamber: _____ °C to _____ °C
□ Vibration table: _____ Hz, _____ G capability
□ Altitude chamber: _____ ft capability
□ Other: _______________________________

## 8. DOCUMENTATION DELIVERABLES

Customer requires:
□ Requirements specification document
□ Interface Control Document (ICD)
□ Design documentation (drawings, schematics, BOM)
□ Test plan and test procedures
□ Test reports (qualification, acceptance)
□ User/integration manual
□ Safety warnings and handling procedures
□ Other: _______________________________

## 9. ASSUMPTIONS & CONSTRAINTS

Document key assumptions:
- _________________________________________________
- _________________________________________________
- _________________________________________________

Document constraints:
- _________________________________________________
- _________________________________________________
- _________________________________________________

## 10. OPEN ITEMS / TBD

Item                                    | Owner      | Target Date
---------------------------------------|------------|-------------
                                       |            |
                                       |            |
                                       |            |

## APPROVAL

Requirements reviewed and approved by:

Customer: ____________________  Date: __________
EVolve Engineering: __________  Date: __________

Notes:
_________________________________________________________
_________________________________________________________
_________________________________________________________