Press Enter to navigate results • Esc to close
EVolve Battery Systems
Document: User Manual
Product: Lithium Block™ GEN2
Revision: J
Date: January 2025
Part Number: LB-GEN2-MAN-REVJ

Lithium Block™ GEN2

User Manual

Wire-Bonded Lithium-Ion Battery Module — 18650 Cell Format

Lithium Block GEN2 Module

Document Information

Manual Revision: K

Product Version: GEN2

Effective Date: January 2025

Classification: Customer Use

Language: English

Pages: Multi-page

Table of Contents

1. Introduction & Safety

1.1 Welcome

Thank you for choosing the Lithium Block™ GEN2 module from EVolve Battery Systems. This manual provides comprehensive information for safe installation, operation, and maintenance of your battery module.

⚠️ Critical Safety Information

READ ALL SAFETY INFORMATION BEFORE HANDLING OR INSTALLING

  • DANGER: System integrations can produce lethal voltages. Keep tools, fingers, and foreign objects away from conductive surfaces.
  • WARNING: Do not operate without an appropriately configured BMS. Doing so risks catastrophic failure and voids warranty.
  • Only qualified personnel should handle, install, or service these modules.
  • Always use appropriate PPE including safety glasses, insulated gloves, and protective clothing.
  • Never short circuit the terminals or allow conductive materials to bridge connections.
  • Ensure adequate ventilation and fire suppression systems are in place.

Failure to follow safety procedures can result in serious injury, death, or property damage.

1.2 Intended Use

The Lithium Block™ GEN2 is designed for integration into battery packs for:

1.3 Qualifications Required

2. Product Overview

2.1 Product Description

The Lithium Block™ GEN2 is a wire-bonded lithium-ion battery module engineered for reliability, scalability, and safety. Each module contains high-performance 18650 lithium-ion cells connected via ultrasonic wire-bonding technology, providing superior electrical and thermal behavior compared to traditional welded connections.

Design Philosophy

  • Modular architecture for flexible scaling
  • Wire-bond redundancy for enhanced safety
  • Integrated monitoring and sensing
  • Manufacturing-ready design

Key Advantages

  • Lower thermal stress during assembly
  • Graceful failure modes
  • Simplified rework and service
  • Consistent quality and performance

2.2 Available Configurations

The Lithium Block™ GEN2 is available in two optimized variants:

Energy Modules

Optimized for: Maximum energy density and cycle life

Applications: Long-duration discharge, energy storage, range-focused EVs

Configurations: 5P, 6P, 7P, 8P, 9P, 10P

Power Modules

Optimized for: High power output and fast charging

Applications: High-performance EVs, power tools, aerospace

Configurations: 5P, 6P, 7P, 8P, 9P, 10P

2.3 Wire-Bond Technology Overview

Wire-bonding process

3. Technical Specifications

3.1 Energy Module Specifications

Parameter 5P Energy6P Energy7P Energy8P Energy9P Energy10P EnergyUnits
Part NumberLBG2-05ELBG2-06ELBG2-07ELBG2-08ELBG2-09ELBG2-10E
Energy Capacity63.075.688.2100.8113.4126.0Wh
Charge Capacity17.52124.52831.535Ah
Nominal Voltage3.63.63.63.63.63.6V
Maximum Voltage4.24.24.24.24.24.2V
Minimum Voltage2.52.52.52.52.52.5V
Standard Charge Current8.510.211.913.615.317A
Maximum Charge Current8.510.211.913.615.317A
Maximum Discharge Current5060708090100A
Length (approx.)119138157177196215mm
Mass (approx.)317374431487544601g

3.2 Power Module Specifications — Standard

Aluminum 5052-H32 collector plates. Collector ampacity limit: 210 A.

Parameter 5P6P7P8P9P10PUnits
Part NumberLBG2-05PLBG2-06PLBG2-07PLBG2-08PLBG2-09PLBG2-10P
Energy Capacity50.460.570.680.690.7100.8Wh
Charge Capacity1416.819.622.425.228Ah
Nominal Voltage3.63.63.63.63.63.6V
Maximum Voltage4.24.24.24.24.24.2V
Minimum Voltage2.52.52.52.52.52.5V
Standard Charge Current1416.819.622.425.228A
Maximum Charge Current303642485460A
Maximum Discharge Current175210210210210210A
Collector PlateAluminum 5052-H32, 0.125 in (3.18 mm), EN Plated
Length (approx.)119138157177196215mm
Mass (approx.)317374431487544601g

3.3 Power Module Specifications — Performance

C11000 copper collector plates. Collector ampacity limit: 357 A. Unlocks the full discharge capability of the Molicel P28A cell (35 A per cell).

Parameter 5P6P7P8P9P10PUnits
Part NumberLBG2-05P-CULBG2-06P-CULBG2-07P-CULBG2-08P-CULBG2-09P-CULBG2-10P-CU
Energy Capacity50.460.570.680.690.7100.8Wh
Charge Capacity1416.819.622.425.228Ah
Nominal Voltage3.63.63.63.63.63.6V
Maximum Voltage4.24.24.24.24.24.2V
Minimum Voltage2.52.52.52.52.52.5V
Standard Charge Current1416.819.622.425.228A
Maximum Charge Current303642485460A
Maximum Discharge Current175210245280315350A
Collector PlateC11000 Copper (ETP), 0.125 in (3.18 mm)
Length (approx.)119138157177196215mm
Mass (approx.)340404468532596660g

3.21 Subcomponent Identification

Lithium Block Subcomponent Identification
Figure 3.21: Lithium Block™ Subcomponent Identification.
ID Description PN Qty per Module Material
1Black Bond Cover221050082UL94 V-0 ABS (~34 kV/mm Dielectric Strength)
2Black Side Cover221050042UL94 V-0 ABS (~34 kV/mm Dielectric Strength)
3Collector Plate22102096 (Std) / 22102097 (Perf)2Standard: EN Plated Al 5052-H32 | Performance: C11000 Cu
4Bus Bar Mounting PEM2300 Series SS
5PCBa230480031 for Gen II, 0 for Gen IFR4 PCB
6Bottom Cover221050051UL94 V-0 ABS (~34 kV/mm Dielectric Strength)
7Battery Cell5–10n/a

3.22 General Module Information

Item Power Standard Power Performance Energy
Battery Cell PNMolicel P28aMolicel P28aMolicel M35a
Collector PlateAl 5052-H32 (EN Plated)C11000 Cu (ETP)Al 5052-H32 (EN Plated)
Max Collector Ampacity210 A357 A210 A
Bonding Wire500µm >99.997% Alu500µm >99.997% Alu300µm >99.997% Alu
PCB Conformal CoatingUrethaneUrethaneUrethane
Construction MaterialUL94 V-0 ABSUL94 V-0 ABSUL94 V-0 ABS
Thermal Gap Filler<1mm 3M DP 125<1mm 3M DP 125<1mm 3M DP 125
Electrical Conductor Spacing StandardIEC 60664IEC 60664IEC 60664
PCB Standards (where applicable)IPC Class IIIPC Class IIIPC Class II
Cell Jacket MaterialPETPETPET
Cell Insulator Ring MaterialPCPCPC
Maximum System Voltage500 VDC500 VDC500 VDC
Approximate Wire Bond Fuse Rating58A58A30A

4. Mechanical Design

4.1 Understanding Your Part Number

The part number convention is as follows:

LBG(n)-(xx)(y)[-CU]

4.2 Physical Dimensions

Standard Envelope

Height:80.75 mm (fixed) | Width: 25.5 mm (fixed)

Length: Variable by parallel count (see specifications)

Lithium Block Gen II Mechanical Drawing
Figure 1: Lithium Block Gen II Mechanical Drawing
Dimension 5P6P7P8P9P10P
Lbody [mm]115.9135.9156.0176.1196.1216.2
Loverall [mm]118.4138.4158.5178.5198.6218.7
Ltotal [mm]129.7149.8169.9189.9210.0230.1

*STEP files of each module variation can be downloaded at the EBS website.

Mounting Features

  • Bus bar mounting PEMs: 300 Series SS, M6 × 1 mm thread
  • Bus bar hole spacing: 25.5 mm center-to-center
  • HV terminal torque: 5.5 Nm with Loctite 243 (stick, not liquid)
  • Bracketing system available separately for structural retention

4.3 Enclosure Materials

Component MaterialPropertiesStandards
Main Housing15% glass-fiber reinforced, flame-retardant ABS (injection molded)Dimensional stability • Low shrinkage • Good mechanical propertiesResin flammability rating: UL94 V-0 (thickness-dependent, per supplier datasheet)
Collector Plate (HV current collector)Standard: Aluminum 5052-H32, 0.125 in (3.18 mm), EN Plated
Performance: C11000 Copper (ETP), 0.125 in (3.18 mm)
Standard: 210 A max ampacity • Corrosion resistant
Performance: 357 A max ampacity • Full P28A cell capability
Standard: Material temper H32
Performance: Power modules only
Bus Bar Mounting PEM300 Series SSCorrosion resistantM6 × 1 mm thread
Bracketing System (accessory)See separate bracketing system manualEndplates, compression hardwareSold separately; own part numbers

4.3.1 Housing Material Properties (Resin Datasheet Reference)

The enclosure resin is a 15% glass-fiber reinforced, flame-retardant ABS. The values below are typical resin datasheet properties provided for engineering reference.

Parameter Value Standard / Notes
Physical
Density (23°C)1.24 g/cm³ (≈ 0.0448 lb/in³)ISO 1183
Molding Shrinkage (23°C)0.2–0.6 %ISO 2577
Melt Index (220°C, 10 kg)25 g/10 minISO 1133
Mechanical
Tensile Strength50 MPa (≈ 7,252 psi)ISO 527 (10 mm/min)
Elongation at Break3 %ISO 527 (10 mm/min)
Flexural Strength90 MPa (≈ 13,053 psi)ISO 178 (2.0 mm/min)
Flexural Modulus (E)3000 MPa (≈ 435,113 psi)ISO 178 (2.0 mm/min)
Izod Notched Impact (23°C)6 kJ/m²ISO 180
Thermal
HDT85 °C (185 °F) @ 1.8 MPaISO 75
Vicat Softening Temperature95 °C (203 °F)ISO 306 (120°C/hr, 50N)
Electrical
Volume Resistivity1E16 Ω·cmIEC 60093
Dielectric Strength~34 kV/mmIEC 60243
Flammability
Flame RatingUL94 V-0 (1.5 mm / 2.0 mm / 3.2 mm)UL94 (resin rating; thickness-dependent)

Notes

  • Values shown are typical resin datasheet properties; molded part properties vary with fiber orientation and processing.
  • "E" is elastic modulus (stiffness), not a pass/fail "withstand" rating.
  • This manual does not claim temperature-dependent modulus (e.g., "E @ 60°C") unless specifically provided by the supplier or supported by part-level testing.

4.4 Thermal Design

Component/Property Specification
Thermistors 10 kΩ ±0.5% NTC type
Thermal Gap Filler <1mm 3M DP 125

5. Electrical Interface

5.1 Power Connections

High Voltage Terminals

Positive Terminal: M6 threaded stud, copper alloy

Negative Terminal: M6 threaded stud, copper alloy

Torque Specification: 5.5 Nm with Loctite 243 (stick, not liquid)

Recommended Hardware: M6 ring terminals, copper or tinned copper

Standard Busbar Hole Spacing
Figure 5.12: Standard busbar hole spacing (25.5 mm).
Lithium Block Bracketing
Bracketing system drawing.
Modules in Bracketing System
Modules installed in bracketing system.

5.2 Sense Harness

Monitoring Connections

Sense Harness Connector: Molex 430450812 (cell voltage & thermistors)

Temperature Sensing: Integrated NTC thermistors

Wire Gauge: 26–24 AWG

5.3 Thermistor Specifications & Locations

Parameter SpecificationToleranceNotes
Resistance @ 25 °C10 kΩ±0.5%NTC type
Beta Value3380 K±1%25 °C to 85 °C
Maximum Voltage5 VMeasurement circuit
Response Time5 s63% of step change
Operating Range−40 °C to +125 °CSensor range
Quantity per Module5P/6P: 3; 7P/8P/9P: 4; 10P: 5
PlacementAdhered to 18650 cell can~4.77 mm above base; first at ~17.80 mm from PCB edge; ~40.14 mm pitch
Thermistor Locations
Thermistor location drawing.

5.4 LV Connector (Board)

Connector Details

Board Connector: Molex 430450812 (8-position)

Mating Connector: Molex 43025-0800

Crimp Terminals: Molex 43030-0007

Wire Gauge: 26–24 AWG

See Appendix A for complete pinout diagrams and wiring instructions.

5.22 GEN2 PCB Specs

Parameter Specification Notes / PN
Board ClassIPC Class IIConformance & inspection
Creepage/ClearancePer IEC 60664Conductor spacing standard
Thermistor Type10 kΩ NTC, β=3380 K±0.5% @25 °C
Max Thermistor Voltage5 V
Voltage Sense FusePTC Resettable 200 mA0ZCK0020FF2G
LV Connector (Board)Molex 430450812
Mating ConnectorMolex 43025-0800Crimp 43030-0007
Bus Bar Thread ClassM6 × 1 mm
Unfused Sense Lead<10 mmKeep minimal length

6. Wire-Bond Technology

6.1 Process Overview

EVolve Battery Systems employs ultrasonic wire-bonding to create electrical connections between lithium-ion cells. This solid-state process offers significant advantages over fusion welding methods.

How Ultrasonic Wire-Bonding Works

  1. Preparation: Cell terminals are cleaned and prepared for bonding
  2. Positioning: Aluminum wire or ribbon is positioned on the terminal
  3. Bonding: Ultrasonic energy creates a solid-state metallurgical bond
  4. Loop Formation: Wire is formed into a compliant loop
  5. Second Bond: Wire is bonded to the next terminal, completing the connection

6.2 Technical Advantages

Process Benefits

  • No molten metal phase
  • Minimal heat input to cells
  • No spatter or contamination
  • Highly repeatable process
  • Excellent automation compatibility

Performance Benefits

  • Low electrical resistance
  • High mechanical compliance
  • Excellent fatigue resistance
  • Predictable failure modes
  • Individual bond redundancy

6.3 Safety Features

Wire-Bond Fusing Characteristics

Individual wire bonds exhibit fuse-like behavior under overcurrent conditions:

  • Power Modules: ~58 A per-bond (median)
  • Energy Modules: ~30 A per-bond (median)
  • Multiple Bonds: Current sharing provides redundancy
  • Graceful Degradation: Individual bond failure doesn't cause catastrophic failure

Fuse sizing (FSAE): Per EV.6.6.5 in the FSAE rulebook, size the main pack fuse at or below ⅓ of the cumulative fusing current for the module (e.g., 58A × number of cells for Power modules).

6.4 Quality Control

7. Installation Guidelines

7.1 Pre-Installation Checklist

⚠️ Before You Begin

  • Verify all personnel are trained and qualified
  • Ensure proper PPE is available and worn
  • Confirm adequate ventilation and fire suppression
  • Have emergency procedures and contacts ready
  • Verify tools are insulated and in good condition
  • Check that work area is clean and organized

7.2 Unpacking and Inspection

  1. Visual Inspection: Check packaging for damage during shipping. Report any damage to carrier and EVolve Battery Systems immediately.
  2. Module Inspection: Examine module for physical damage, cracks, or deformation. Do not use if any damage is observed.
  3. Connector Check: Verify all connectors are intact and properly seated. Check for bent pins or damaged housings.
  4. Documentation Review: Confirm all documentation, test reports, and certificates are included with shipment.

7.3 Mechanical Installation

  1. Mounting Preparation: Ensure mounting surface is flat, clean, and properly grounded. Verify mounting hole alignment.
  2. Thermal Interface: Apply thermal interface material if using cold plates or enhanced heat dissipation.
  3. Module Placement: Carefully position module ensuring proper alignment with mounting holes and clearance for connections.
  4. Fastening: Secure bus bar connections to M6 PEM studs. Torque to 5.5 Nm with Loctite 243 (stick, not liquid). Use bracketing system (sold separately) for structural retention if required.

7.4 Electrical Installation

  1. Power Connections: Install ring terminals on power cables. Ensure proper crimp and insulation. Torque to 5.5 Nm with Loctite 243 (stick, not liquid).
  2. Sense Harness: Connect monitoring harness ensuring proper pin alignment. Verify secure connection with gentle pull test.
  3. Insulation Test: Perform insulation resistance test between HV terminals and chassis ground (minimum 1 MΩ at 500 V DC).
  4. Continuity Check: Verify electrical continuity through power path and proper sensor readings.

7.5 System Integration

BMS Integration Requirements

  • Cell Monitoring: Individual cell voltage and temperature monitoring
  • Balancing: Active or passive cell balancing capability
  • Protection: Overvoltage, undervoltage, overcurrent, overtemperature
  • Communication: CAN bus or other protocol for system integration

Pack-level fuse: Required. Max fuse rating must be less than 120% of the cumulative parallel module rating. For FSAE applications, size at ⅓ of cumulative fusing current per EV.6.6.5.

8. Operating Procedures

8.1 Initial Commissioning

  1. Pre-Commissioning Checks: Verify all connections, insulation resistance, and BMS configuration.
  2. Initial Charge: Perform initial charge cycle at reduced rate (C/10) while monitoring all parameters.
  3. Capacity Test: Conduct capacity verification test to confirm module performance meets specifications.
  4. System Validation: Test protection functions and emergency shutdown procedures.

8.2 Normal Operation

Charging Guidelines

  • Use CC-CV charging profile
  • Respect maximum charge current limits
  • Monitor temperature during charging
  • Terminate charge at 4.2 V per cell
  • Allow thermal equilibration

Discharge Guidelines

  • Monitor current and temperature
  • Respect continuous current limits
  • Implement low-voltage cutoff at 2.5 V
  • Avoid deep discharge conditions
  • Monitor for fault conditions

8.3 Monitoring Parameters

Parameter Normal RangeWarning LevelAlarm LevelAction Required
Cell Voltage2.5–4.2 V2.8 V / 4.15 V2.5 V / 4.2 VReduce current / Stop
Module Temperature10–45 °C50 °C60 °CReduce current / Stop
Charge Current0 – Std Rate110% Std120% StdReduce / Stop charging
Discharge Current0 – Cont Rate110% Cont120% ContReduce / Stop discharge
Voltage Imbalance< 50 mV100 mV200 mVBalance / Service

8.4 Emergency Procedures

🚨 Emergency Response

Thermal Runaway Signs

  • Rapid temperature rise
  • Visible smoke or vapor
  • Unusual odors
  • Swelling or deformation
  • Sparking or arcing

Immediate Actions

  • Disconnect power immediately
  • Evacuate personnel from area
  • Activate fire suppression if available
  • Contact emergency services
  • Notify EVolve Battery Systems

9. Maintenance & Service

9.1 Routine Maintenance

Recommended Maintenance Schedule

Interval Maintenance Task Personnel Required
WeeklyVisual inspection, parameter loggingOperator
MonthlyConnection torque check, cleaningTechnician
QuarterlyCapacity test, insulation testQualified Technician
AnnuallyComplete system inspection, documentation updateEngineer

9.2 Inspection Procedures

  1. Visual Inspection: Check for physical damage, corrosion, loose connections, or signs of overheating. Document any anomalies.
  2. Electrical Testing: Measure insulation resistance, connection resistance, and verify sensor functionality.
  3. Performance Testing: Conduct capacity and internal resistance measurements to assess module health.
  4. Documentation: Record all measurements and observations in maintenance log. Compare to baseline values.

9.3 Cleaning Procedures

Approved Cleaning Methods

Exterior Surfaces: Use dry cloth or slightly damp cloth with isopropyl alcohol (70% max)

Terminals: Use contact cleaner and fine abrasive pad if necessary

Connectors: Use compressed air and contact cleaner. Ensure completely dry before reconnection

NEVER use water, solvents, or aggressive chemicals. Always disconnect power before cleaning.

9.4 Storage Guidelines

Short-Term Storage (< 6 months)

  • Store at 30–50% state of charge
  • Temperature: 15–25 °C preferred
  • Humidity: <60% RH
  • Check voltage monthly

Long-Term Storage (> 6 months)

  • Store at ~40% state of charge
  • Temperature: 15–20 °C preferred
  • Check and recharge every 6 months
  • Maintain detailed storage log

10. Troubleshooting

10.1 Common Issues and Solutions

Symptom Possible Cause Recommended Action Contact Support
Low capacityCell aging, temperature, imbalanceCheck temperature, balance cellsIf <80% rated capacity
High temperatureOvercurrent, poor cooling, faultReduce current, check coolingIf >60 °C sustained
Voltage imbalanceCell mismatch, BMS issueCheck BMS balancing functionIf >200 mV difference
High resistanceConnection issue, agingCheck connections, clean terminalsIf >2× initial value
Sensor errorConnector issue, wire damageCheck harness connectionsIf persistent errors

10.2 Diagnostic Procedures

Basic Diagnostic Tests

  1. Voltage Measurement: Measure individual cell voltages and module voltage
  2. Temperature Check: Verify thermistor readings across all sensors
  3. Insulation Test: Measure insulation resistance to ground (>1 MΩ required)
  4. Connection Resistance: Measure resistance across power connections
  5. Capacity Test: Perform controlled discharge to measure actual capacity

10.3 When to Contact Support

⚠️ Contact EVolve Battery Systems Immediately If:

  • Any signs of thermal runaway or overheating
  • Physical damage to module housing or terminals
  • Capacity drops below 80% of rated value
  • Persistent voltage imbalances >200 mV
  • Unusual odors, smoke, or visible damage
  • Any safety-related concerns

Emergency Contact: (720) 414-5502 | Email: [email protected]

11. Safety & Compliance

11.1 Safety Standards

The Lithium Block™ GEN2 is designed to support compliance with relevant safety standards:

Standard Application Compliance Level Notes
UN 38.3Transport safetyModule levelTest report available
IEC 62133Cell safetyCell levelCell manufacturer cert
UL 1973Stationary storageSystem levelPack integration required
IEC 62619Industrial batteriesSystem levelPack integration required
ISO 12405EV applicationsSystem levelVehicle integration required

11.2 Material Compliance

Environmental Compliance

  • RoHS: Compliant with EU RoHS directive
  • REACH: No substances of very high concern (SVHC)
  • Conflict Minerals: Responsible sourcing practices
  • Recycling: Materials selected for end-of-life recycling

11.3 Safety Architecture

Multi-Layer Safety Design

Cell Level

  • Current Interrupt Device (CID)
  • Pressure relief vent
  • Thermal shutdown
  • Internal safety circuits

Module Level

  • Wire-bond fusing behavior
  • Temperature monitoring
  • Mechanical strain relief
  • Flame-retardant housing resin (UL94 V-0 per supplier datasheet; thickness-dependent)

System Level

  • BMS protection
  • Pack-level fusing
  • Isolation monitoring
  • Emergency shutdown

11.4 Hazard Analysis

Hazard Risk Level Mitigation Detection Method
Thermal runawayHighTemperature monitoring, current limitingTemperature sensors, BMS
OverchargeHighVoltage monitoring, charge controlCell voltage monitoring
OverdischargeMediumLow voltage cutoffCell voltage monitoring
OvercurrentMediumCurrent limiting, fusingCurrent sensors, wire-bond fusing
Short circuitHighFusing, isolationCurrent sensors, voltage monitoring
Mechanical damageMediumProper handling, mountingVisual inspection

12. Warranty & Support

12.1 Limited Warranty

Warranty Coverage

EVolve Battery Systems warrants the Lithium Block™ GEN2 modules to be free from defects in materials and workmanship under normal use for a period of 12 months from the date of shipment.

Covered Items

  • Manufacturing defects
  • Material failures
  • Wire-bond integrity
  • Connector defects
  • Enclosure issues

Exclusions

  • Misuse or abuse
  • Operation outside specifications
  • Unauthorized modifications
  • Normal wear and aging
  • Damage during shipping

12.2 Technical Support

Support Services Available

  • Technical Consultation: Application engineering support
  • Integration Assistance: BMS selection and configuration guidance
  • Troubleshooting Support: Remote and on-site diagnostic assistance
  • Training Services: Safety and operation training programs
  • Documentation: Additional technical documentation and updates

12.3 Return Material Authorization (RMA)

  1. Contact Support: Call (720) 414-5502 or email [email protected] with issue details and module serial number.
  2. RMA Number: Obtain RMA number and return instructions. Do not return any product without prior authorization.
  3. Packaging: Use original packaging if available, or equivalent protection. Follow all hazmat shipping requirements.
  4. Documentation: Include RMA number, description of issue, and any relevant test data or logs.

Appendix A: Connector Pinouts

A.1 LV Connector (Board)

Molex MicroBlade / Micro JST Footprint

Board Connector: Molex 430450812 (8-position)

Mating Connector: Molex 43025-0800

Crimp Terminals: Molex 43030-0007

Wire Gauge: 26–24 AWG

Pin Signal Name Description Wire Color Voltage Range
1VSENSE+Voltage Sense +Red2.5–4.2 V
2THERM_5Thermistor 5Yellow0–5 V
3THERM_4Thermistor 4Orange0–5 V
4THERM_3Thermistor 3Green0–5 V
5VSENSE−Voltage Sense −Black0 V (ref)
6COMCommon returnBlue0 V
7THERM_1Thermistor 1White0–5 V
8THERM_2Thermistor 2Brown0–5 V

A.2 Temperature Sensor Characteristics

NTC Thermistor Specifications

Type: 10 kΩ NTC, β = 3380 K

Accuracy: ±0.5% at 25 °C

Temperature Calculation:

T(K) = 1 / (1/T₀ + (1/β) × ln(R/R₀))
where T₀ = 298.15 K, R₀ = 10 kΩ, β = 3380 K

Appendix B: Revision History

Revision Date Changes Approved By
AMarch 2020Initial release for GEN2 modulesEngineering
BAugust 2020Updated specifications, added power modulesEngineering
CJanuary 2021Revised safety procedures, updated connector infoEngineering
DJune 2021Added troubleshooting section, updated warrantyEngineering
ENovember 2021Updated wire-bond specifications, added maintenance scheduleEngineering
FApril 2022Revised environmental specifications, updated pinoutsEngineering
GSeptember 2022Added diagnostic procedures, updated safety warningsEngineering
HMarch 2023Updated compliance information, revised installation proceduresEngineering
IAugust 2023Added storage guidelines, updated support contact informationEngineering
JJanuary 2025Complete manual restructure, updated branding, enhanced safety sectionsEngineering
KApril 2026Corrected LV connector pinout table (Appendix A) to match GEN2 PCB layoutEngineering

Document Control

Document Owner: EVolve Battery Systems Engineering Department

Review Cycle: Annual or as needed for product changes

Distribution: Customer-facing document, available on request

Language: English (primary); translations available upon request