Battery Pack Temperature Sensor Manufacturer & Custom Solutions
We design and manufacture NTC temperature sensors for lithium battery packs, BMS systems, EV batteries, and energy storage applications. Every sensor is engineered to your exact resistance, B-value, connector, cable, and installation requirements.
- Full custom capability -- resistance, B-value, cable, connector, harness, and probe structure per your BMS spec or drawing
- IATF 16949 quality system, AEC-Q200 reliability testing available, ISO9001 & ISO14001 certified
- 2,000,000+ units daily capacity -- scalable from prototype samples to high-volume production orders
QUICK SPEC OVERVIEW NTC.BATT
- RESISTANCE 10K / 50K / 100K Ω
- B-VALUE 3435 / 3950 / 3977
- ACCURACY ±1% / ±3% / ±5%
- TEMP RANGE -40°C TO +125°C
- CONNECTORS JST / Molex / TE / Custom
- LEAD TIME (SAMPLE) 7-14 DAYS
Why It Matters
Why Battery Pack Temperature Sensors Are Critical
In lithium-ion battery systems, temperature is the single most important variable affecting safety, performance, and cycle life. Accurate, real-time temperature monitoring is not optional -- it is a fundamental requirement for any responsible BMS design.
Over-Temperature Protection
Lithium cells can enter thermal runaway above critical thresholds. A reliable battery temperature sensor enables the BMS to trigger protection circuits before damage or fire occurs.
Charge/Discharge Optimization
BMS algorithms use real-time temperature data to optimize charging rates and discharge limits, directly extending battery cycle life and protecting cell chemistry.
Thermal Management Control
In EV and ESS applications, multi-point NTC sensor harnesses feed thermal management systems -- controlling cooling fans, liquid cooling loops, and heating elements.
Regulatory & Safety Compliance
Many international standards for EV batteries and ESS require documented temperature monitoring. Certified NTC sensors help you meet UL, IEC, and automotive safety requirements.
Accurate SOC/SOH Estimation
Temperature compensation is essential for accurate State of Charge (SOC) and State of Health (SOH) calculations. Poor temperature sensing leads to inaccurate battery capacity readings.
Module-Level Uniformity
Multi-point NTC harnesses detect temperature gradients across battery modules, helping identify imbalanced cells and enabling proactive maintenance before field failures occur.
Our Solutions
Custom Battery Pack Temperature Sensor Solutions
We are not a catalog supplier. Every battery temperature sensor we produce is engineered to match your battery pack geometry, BMS interface, operating environment, and production volume. Whether you need a single-point NTC probe or a complex multi-point harness assembly with custom connectors, we work from your drawings, samples, or specifications.
Share Your Requirements
Send us your drawings, BMS interface specs, battery pack dimensions, or a sample sensor. We accept PDF, DXF, DWG, and photos.
Engineering Review & Quotation
Our engineering team reviews your requirements and provides a detailed quotation within 24 hours, including material options and lead time.
Sample Production & Validation
We produce pre-production samples (typically 7-14 days) for your electrical and mechanical validation. Adjustments are made based on your feedback.
Mass Production & Delivery
Once approved, we scale to your required volume with consistent quality control, batch testing, and on-time delivery.
500+
Customers Served
24h
Quote Response
2M+
Daily Capacity
Customization
Custom Options for Battery Temperature Sensors
Every parameter can be specified to match your BMS interface, battery pack structure, and operating environment.
NTC Resistance Value
Standard and custom resistance at 25°C
- 10 KΩ (most common for BMS)
- 50 KΩ
- 100 KΩ
- Other values on request
B-Value (Thermistor Constant)
Matched to your BMS R-T curve requirement
- B3435 (25/85°C)
- B3950 (25/50°C)
- B3977
- Custom B-value per BMS spec
Resistance Accuracy (Tolerance)
Select the tolerance grade required by your BMS
- ±1% (high precision)
- ±3% (standard)
- ±5% (cost-optimized)
- Custom per project requirement
Probe Structure & Encapsulation
Optimized for your installation method and environment
- Epoxy encapsulated
- Metal shell / stainless probe
- Flat adhesive / surface-mount type
- Ring terminal (OT lug, M3-M6)
- Embedded / insert-molded
Cable Type & Length
Matched to your battery pack environment and routing
- PVC insulated (standard)
- Silicone (high flexibility, -60°C+)
- PTFE / Teflon (chemical resistance)
- XLPE (irradiation crosslinked)
- Any length per drawing
Connector & Termination
Plug-and-play with your BMS connector interface
- JST (PH, XH, ZH, GH series)
- Molex (Micro-Fit, Mini-Fit)
- TE / AMP series
- Bare wire / tinned ends
- Customer-specified connector
Single-Point or Multi-Point NTC Harness
We manufacture both single NTC probes and multi-point temperature sensor harnesses (4-PIN, 6-PIN, 8-PIN, 12-PIN and beyond) for battery module arrays. Custom harness routing, wire bundling, and connector pinout are all supported.
Technical Data
Technical Specifications
Standard parameters for battery pack NTC temperature sensors. All values can be customized to your project requirements.
| Parameter | Standard Range / Value | Notes |
|---|---|---|
| Resistance at 25°C (R25) | 10 KΩ / 50 KΩ / 100 KΩ | Other values available on request |
| B-Value (Thermistor Constant) | B3435 / B3950 / B3977 | Custom B-value matched to BMS R-T table |
| Resistance Tolerance | ±1% / ±3% / ±5% | Measured at 25°C |
| Operating Temperature Range | -40°C to +125°C | Extended range available for specific probes |
| Thermal Time Constant | ≤10 s (in still air) | Faster response for surface-contact probes |
| Dissipation Constant | ≥1.5 mW/°C | In still air at 25°C |
| Rated Power | ≤75 mW | At 25°C ambient |
| Insulation Resistance | ≥100 MΩ (500V DC) | Higher voltage insulation available for ESS |
| Cable Length | 100 mm - 3000 mm | Custom length per drawing |
| Wire Gauge | 24 AWG / 26 AWG / 28 AWG | Other gauges available |
| NTC Chip Material | Mn-Ni-Co oxide ceramic | High stability, long-term drift <0.2%/year |
| RoHS / REACH Compliance | Yes | Halogen-free options available |
Product Range
Battery Temperature Sensor Types We Manufacture
Epoxy Encapsulated NTC Sensor
Standard battery pack NTC with epoxy-sealed bead, PVC or silicone cable, and custom connector. Ideal for cell surface temperature monitoring in lithium battery modules.
Multi-Point NTC Sensor Harness
Multiple NTC probes integrated into a single cable harness with a shared BMS connector. Available in 4, 6, 8, 12 or more sensing points. Custom pinout and routing per your battery module layout.
Flat Adhesive NTC Sensor
Ultra-thin flat profile NTC with adhesive backing for direct bonding to prismatic or pouch cell surfaces. Minimizes thermal resistance for fast and accurate cell temperature reading.
Ring Terminal (OT Lug) NTC Sensor
NTC thermistor integrated into an OT ring terminal (M3, M4, M5, M6) for bolt-down installation on battery bus bars, cell terminals, or module housings. Ensures stable mechanical contact.
High-Voltage Insulated ESS NTC Sensor
Designed for energy storage systems operating at high pack voltages. Features pure nickel strip electrodes, XLPE or silicone cable, and enhanced insulation for safe operation in high-voltage environments.
SMD NTC Thermistor for BMS PCB
Surface-mount NTC thermistors (0201 to 1206 package) for direct PCB placement on BMS boards, inverter boards, and protection circuit modules. High accuracy, compact, reflow-solderable.
Applications
Typical Applications for Battery Temperature Sensors
EV Battery Pack
Cell temperature monitoring in electric vehicle battery packs for BMS over-temperature protection, thermal management, and SOC estimation.
Energy Storage System (ESS)
Multi-point NTC harnesses for battery module temperature monitoring in residential, commercial, and utility-scale energy storage systems.
BMS Circuit Board
SMD NTC thermistors and leaded NTC probes for direct BMS PCB temperature measurement, MOSFET thermal protection, and ambient sensing.
E-Bike & Scooter Battery
Compact NTC sensors for electric bicycle and scooter battery packs, ensuring safe charging and discharging under varying ambient conditions.
Power Tool Battery
Compact and robust NTC sensors for cordless power tool battery packs, providing temperature feedback for fast-charge protection and overload detection.
Industrial Battery System
Heavy-duty NTC assemblies for forklift batteries, UPS systems, telecom backup batteries, and other industrial battery applications requiring reliable long-term performance.
Solar + Storage Inverter
NTC sensors for inverter IGBT thermal protection and battery-side temperature monitoring in solar energy storage and grid-tied inverter systems.
Battery Module Testing
Precision NTC probes for battery formation, capacity grading, and aging test equipment, where accurate temperature data is critical for test result validity.
Installation
Battery Pack Installation Methods
We engineer the probe structure and sensor packaging to match your installation method, ensuring reliable thermal contact and long-term mechanical stability.
Adhesive Bonding
Flat NTC probe with thermal adhesive tape or thermal conductive epoxy bonded directly to cell surface. Suitable for prismatic and pouch cells. Fast installation, no mechanical modification required.
Surface Contact
Spring-loaded or clip-mounted probe maintains consistent surface contact with the cell or bus bar. Used in modular battery designs where sensors may need to be replaced during service.
Embedded / Insert-Molded
NTC bead or probe embedded directly within the battery module housing or cell holder during the molding process. Provides excellent protection and permanent positioning.
Screw / Bolt Fastening
Ring terminal (OT lug) NTC sensors fastened to battery terminals, bus bars, or module end plates using M3-M6 bolts. Provides reliable mechanical retention and good thermal coupling.
PCB Surface Mount
SMD NTC chip (0201-1206) reflow-soldered directly onto BMS or protection circuit PCB. Compact, cost-effective, and suitable for automated SMT assembly lines.
Snap-In / Clip Mount
Custom-designed plastic housing with snap-in or clip retention for quick assembly in high-volume battery pack production. The probe is precisely positioned against the cell surface without adhesives.
Cable & Connector
Cable and Connector Customization
The cable assembly is as important as the sensor itself. We produce complete battery temperature sensor cable assemblies with the cable type, length, gauge, connector, and termination matched precisely to your BMS interface and battery pack routing requirements.
Cable Insulation Materials
PVC
Standard, cost-effective, -20°C to +80°C
Silicone
High flexibility, -60°C to +200°C
PTFE / Teflon
Chemical resistance, -200°C to +260°C
XLPE
Irradiation crosslinked, high voltage insulation
Supported Connector Brands
Harness Assembly Capabilities
- Multi-conductor harness with shared BMS connector (up to 12+ NTC points)
- Custom cable branching, wire bundling, and routing per battery pack layout drawing
- Heat shrink tubing, cable ties, and protective sleeving included as required
- Automated crimping and 100% continuity testing on all assemblies
- Produce from customer drawings, samples, or BMS interface specification documents
How to Order
How to Customize Your Battery Pack Temperature Sensor
A straightforward process from inquiry to delivery. We guide you through every step.
Submit Requirements
Send your drawings, BMS spec, sample sensor, or a description of your requirements via the inquiry form or email.
Engineering Review
Our application engineers review your specifications, confirm technical feasibility, and clarify any questions within 24 hours.
Quotation
Receive a detailed quotation including unit price, tooling cost (if any), sample lead time, and MOQ for production orders.
Sample Production
Pre-production samples manufactured in 7-14 days. We provide a measurement report with each sample batch for your validation.
Mass Production
After your approval, we proceed to mass production with full QC, batch testing documentation, and timely delivery.
Quality & Testing
Quality Systems and Testing Capabilities
Our manufacturing and quality control processes are designed to meet the demands of automotive and energy storage customers. We operate under IATF 16949 quality management and maintain in-house testing capabilities for reliability validation.
IATF 16949 Quality Management
Automotive-grade quality management system covering design, production, and delivery processes. Mandatory for EV and automotive battery supply chains.
AEC-Q200 Reliability Testing (Available)
Third-party AEC-Q200 reliability test reports available through CNAS-accredited laboratories. Covers temperature cycling, humidity resistance, thermal shock, and mechanical stress tests.
100% Resistance & Continuity Testing
Every sensor is tested for resistance value, tolerance, and electrical continuity before shipment. Batch test reports are available upon request.
In-House Testing Capabilities
Thermal Shock
-40°C ↔ +125°C cycling
High Temp / Humidity
85°C / 85% RH aging test
Voltage Withstand
Hi-pot / dielectric strength
X-Ray Inspection
Internal solder joint check
Pull-Out Force
Connector & wire retention
Resistance Measurement
100% automated batch test
Certifications & Compliance
Industries
Industries Served
EV / Electric Vehicle
Battery pack, BMS, thermal management
Energy Storage (ESS)
Residential, commercial, utility-scale BESS
E-Bike & E-Scooter
Lithium battery pack, BMS protection
Power Tools
Cordless tool battery packs, fast charge
Industrial Battery
Forklift, UPS, telecom backup
Solar Inverter
IGBT thermal protection, battery-side NTC
BMS Manufacturers
PCB NTC, cable NTC, harness assembly
OEM / ODM Projects
Custom sensor design and private label
Related Products
Related NTC Temperature Sensor Products
Automotive NTC Sensor
Threaded stainless steel NTC sensors for EV motor temperature, coolant temperature, and oil temperature monitoring.
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SMD NTC Thermistor
Chip NTC thermistors in 0201, 0402, 0603, 0805, and 1206 packages for BMS PCB, inverter boards, and protection circuits.
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Glass Encapsulated NTC
High-temperature glass-sealed NTC probes for applications requiring fast response and operation above 150°C.
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BMS NTC Harness Assembly
4-PIN to 12-PIN multi-point NTC harnesses for battery module temperature arrays, custom connector and routing.
View DetailsFAQ
Frequently Asked Questions
Common questions from battery pack engineers and procurement teams.
What is the standard NTC resistance value for battery pack BMS applications?
What B-value should I specify for my battery temperature sensor?
Can you produce multi-point NTC sensor harnesses for battery modules?
What connector types can you use for the BMS interface?
What is the minimum order quantity (MOQ) for custom battery temperature sensors?
How long does it take to get samples of a custom battery temperature sensor?
Are your battery temperature sensors AEC-Q200 qualified?
What cable insulation should I choose for a battery pack environment?
Can you produce battery temperature sensors for high-voltage ESS applications?
What information do I need to provide to get a quotation?
Do you provide a measurement report or test data sheet with each shipment?
Can you match a competitor's battery temperature sensor or replicate a sample?
Get a Custom Quote for Your
Battery Temperature Sensor
Share your drawings, BMS interface specifications, connector requirements, or a sample sensor. Our engineering team will respond within 24 hours with a detailed quotation and technical recommendations.
24h
Quote Response
7-14
Days for Samples
500+
B2B Customers
2M+
Daily Capacity
Inquiry Form
Request a Quote or Sample
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