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CR2450HR
CR2450HR
| Part Number | CR2450HR |
|---|---|
| Manufacturer | Maxell |
| Category | Batteries & Power Products > Primary Batteries (Non-Rechargeable) – Coin / Button Cell |
| Description | High-Heat-Resistant Lithium Manganese Dioxide Coin Cell Battery, 3.0V Nominal Voltage, 550mAh Capacity, 2450 Form Factor, Operating Temperature: -40°C ~ +125°C. |
| Stock Status | In Stock |
| Origin | Original Factory |
Product Overview
The CR2450HR is a high-heat resistant primary lithium manganese dioxide (Li/MnO₂) coin cell manufactured by Maxell. Designed for industrial and automotive high-reliability scenarios, this non-rechargeable 3.0V battery adopts exclusive high-temperature sealing technology. With a working temperature range of -40°C to +125°C and 550mAh nominal capacity, it delivers stable discharge performance. Widely used in TPMS, smart meters and high-temperature industrial sensors.
Core Advantages
Extreme Operating Temperature Range (-40°C to +125°C)
Adopts dedicated high-temperature sealing materials, stable continuous operation up to 125°C without leakage or capacity attenuation.
High Capacity & Long Service Lifespan
Provides 550mAh nominal capacity, offering long-term stable backup power for low-power MCUs and RF modules.
Excellent Anti-Leakage & High Vibration Resistance
Precision crimp sealing structure, resistant to vibration and thermal shock, ideal for automotive TPMS applications.
Ultra-Low Self-Discharge Rate
Annual self-discharge rate less than 1%, ensuring long shelf life and extended standby time.
Key Specifications
| Brand | Maxell |
|---|---|
| RoHS Status | RoHS Compliant / Lead-Free / Mercury-Free |
| Warranty | 1-Year Standard Quality Warranty |
| Package / Case | Coin Cell 2450 (24.5 mm Diameter × 5.0 mm Height) |
| Mounting Type | Coin Cell Holder / PCB Tab Pin Solder Mount |
| Surface Marking / Silkscreen | Maxell CR2450HR / 3V Marking |
| Battery Chemistry | Primary Lithium Manganese Dioxide (Li/MnO₂) – Heat Resistant |
| Nominal Voltage | 3.0 V (Open circuit voltage typically 3.1-3.3 V) |
| Nominal Capacity | 550 mAh (at standard discharge current 0.2 mA) |
| Standard Discharge Current | 0.2 mA |
| Typical Pulse Discharge Current | Tens of mA (short pulse, refer to official datasheet) |
| Cut-off Voltage | 2.0 V |
| Operating Temperature Range | -40°C to +125°C (High-Heat Grade; short-term tolerance up to 150°C) |
| Weight | Approx. 6.8 g |
| Self-Discharge Rate | Extremely low (＜1% per year at room temperature) |
| Shelf Life | 5-10 years under recommended storage conditions |
| Packaging Format | Tray / Blister Pack / Bulk |
Precautions
- Do Not Recharge: CR2450HR is a primary lithium battery. Recharging risks gas generation, leakage, overheating, explosion or fire.
- Avoid Direct Soldering to Cell: Direct soldering damages internal seals. Use pre-welded tabs or dedicated battery holders.
- Do Not Short-Circuit: Shorting positive and negative terminals creates heavy current and extreme heat.
- Observe Correct Polarity: Confirm +/- alignment during installation to avoid circuit failure.
- Safe Handling & Disposal: Do not incinerate, disassemble, crush or overheat above +125°C. Dispose per local lithium battery regulations.
Typical Applications
- Automotive Tire Pressure Monitoring Systems (TPMS) and wheel-mounted sensor modules
- Engine compartment telemetry, automotive electronic toll collection (ETC), and OBD tracking units
- Industrial automated meters, high-temperature boiler instrumentation, and environmental data loggers
- Outdoor smart utility gas/water meters, remote pipeline monitoring, and oil/gas sensors
- Medical equipment requiring steam or heat sterilization procedures
Order & Shipping Info
| Minimum Order Quantity (MOQ) | 1 Piece |
|---|---|
| Shipping Time | Shipped within 1-2 business days |
| Delivery Time | 3-7 working days worldwide |
| Shipping Methods | DHL, UPS, FedEx, EMS, YFH Standard |
| Payment Methods | T/T (Bank Transfer), PayPal, Credit Card, Western Union |
Technical Support
For datasheet, sample requests, stock check, bulk pricing and custom versions with solder tabs, pins and wire assemblies, please use the Quick Inquiry form. We will reply within 24 hours.
Frequently Asked Questions
Q1: What is the main difference between standard Maxell CR2450 and CR2450HR?
A: Ordinary CR2450 works within -30°C ~ +85°C. CR2450HR uses high-temperature resistant materials and special sealing structure, stably operating up to +125°C, designed for harsh environments.
Q2: Can CR2450HR be recharged?
A: No. CR2450HR is a primary non-rechargeable lithium battery. If rechargeable coin cell with same size is needed, please check ML or MS series.
Q3: Why choose CR2450HR for TPMS (Tire Pressure Monitoring System)?
A: Automobile tires face high temperature, severe vibration and centrifugal force during driving. CR2450HR is tested to withstand these harsh conditions while maintaining stable output.
Q4: Can you supply CR2450HR with custom solder tabs or wire leads?
A: Yes. We provide factory pre-processed CR2450HR with vertical/horizontal solder tabs, insulated leads and micro connectors upon customer request.
Q5: Can I use ordinary CR2450 to replace CR2450HR directly?
A: Not recommended. Although they share identical outer dimensions. Standard CR2450 cannot sustain high temperature above 85°C. Using it in high-heat equipment will cause early capacity decline or leakage risk.
Q6: Are there alternative equivalent high-temperature coin cell models for CR2450HR?
A: Competitor high-temperature CR2450 variants exist, but sealing formula differs. For projects requiring stable performance above 105°C, Maxell CR2450HR remains the preferred original solution to avoid reliability risks.
Q7: What storage conditions are recommended for CR2450HR?
A: Store batteries at temperature between 10°C ~ 25°C with low humidity. Avoid direct sunlight and high-temperature warehouse to guarantee its 5–10 years shelf life.
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