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Product Details
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Specs
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FAQs
Compact 3.2V 370mAh LiFePO4 502540 for High-Temp & Long-Cycle Use
Engineered for compact electronics and temperature-sensitive devices, the 3.2V 370mAh LiFePO4 Battery 502540 delivers stable voltage, long cycle life, and reliable operation in moderate to harsh temperature ranges. Ideal for 502540 battery setups, IoT devices, and other low-to-medium power applications, it combines high reliability with a lightweight form factor (~10g) for space-constrained designs.

Performance Highlights — Stable Output & Extended Life
Explore how the 502540 cell performs in voltage stability, cycle durability, temperature tolerance, and low self-discharge for professional-grade applications.
- Stable Voltage
- Extended Cycle Life
- Temperature Resilience
- Low Self-Discharge
Consistent Voltage for Sensitive Electronics
Designed for devices that require precise voltage regulation, this LiFePO4 cell maintains 3.2V nominal under varying loads, reducing system stress and improving performance reliability.
- Nominal voltage: 3.2V, safe cutoff: 2.2V
- Standard current: 185mA, max current: 370mA
- Internal resistance ≤200mΩ for minimal voltage drop
Durable Cycles for Long-Term Use
Engineered for longevity, the 502540 cell supports thousands of charge/discharge cycles while retaining high capacity, minimizing maintenance and replacement frequency.
- 1000 cycles: ≥92% capacity retention
- 1500 cycles: ≥88% capacity retention
- 2000 cycles: ≥80% capacity retention for long-term applications
Reliable Performance Across Temperatures
This LiFePO4 cell operates across a wide temperature range, from cold storage conditions to high-temperature environments, making it ideal for IoT sensors, outdoor devices, and embedded electronics.
- Charge: 0℃ to 45℃
- Discharge: -10℃ to 80℃
- Storage: -20℃ to +60℃ (depending on duration)
Long-Term Storage Without Energy Loss
Optimized for low self-discharge, the 502540 battery retains most of its energy during extended storage, suitable for backup power, seasonal devices, or spare inventory.
- Minimal capacity loss in ambient storage
- Storage up to 1 year at -20℃ to +30℃
- Supports standby operation for low-power devices
Core Strengths of the 502540 LiFePO4 Battery
Reliable, lightweight, and engineered for long-lasting performance under variable temperature and moderate load conditions.
Key Advantages for Engineers and Integrators
Highlights making the 3.2V 370mAh cell ideal for compact electronics, IoT, and sensor modules.
- Stable 3.2V output for sensitive circuits
- Low IR under standard and peak currents
- Compact 502540 form (~10g) for tight spaces
- High cycle retention up to 2000 cycles
- Temperature tolerance for broad operating conditions

Production Highlights for 502540 Cells
Precision assembly, thermal control, and quality verification ensure reliable LiFePO4 performance in low-to-medium current applications.
View more production details 



502540 LiFePO4 Battery vs Standard 370mAh Cell
Comparison for engineers and procurement teams selecting a 3.2V 370mAh cell for compact, temperature-resilient applications.
502540 LiFePO4
- Stable 3.2V output under standard and peak load
- Low internal resistance (≤200mΩ)
- Lightweight (~10g) for compact designs
- Batch traceable for quality assurance
- Cycle life up to 2000 cycles
- Operating temp: -10℃ to 80℃
- Custom pack assembly available
Standard 370mAh Cell
- Higher IR and voltage variation
- Lower cycle stability
- Limited temperature tolerance
- No traceable batch verification
Customization for 502540 LiFePO4 Packs
Flexible solutions for compact, temperature-resilient modules.
- Single cells or 1S custom modules
- Capacity matching for multi-cell assemblies
- Thermal shields, connectors, and protective options
- Protection circuits available upon request
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01Define target voltage and operating temperature requirements
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02Select matching tolerance for consistent voltage and IR
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03Choose connector type and mechanical assembly method
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04Prototype validation for discharge, IR, and thermal performance
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05Mass production with structured QA and batch traceability
Battery Specification
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1. Mechanical Characteristics
Cell 502540 PCM Yes NTC Yes Weight appr. 10g Configuration 1S1P -
2. Electrical Specification
Capacity 370mAh Nominal Voltage 3.2V Energy 1.369Wh Internal Resistance less than 200mΩ Max. Charge Voltage 3.65V Discharge Cut Off 2.2V Max. Charge Current 370mA Max. Discharge Current 370mA Standard Charge Current 185mA Standard Discharge Current 185mA Charging Temperature 0℃ to 45℃ Discharging Temperature -10℃ to 80℃ Storage Temp. Range 1 year at -20℃ to +30℃ 3 mos. at -20℃ to +45℃ 1 mo. at -20℃ to +60℃ Cycle life 1000 cycles ≥92% 1500 cycles ≥88% 2000 cycles ≥80% -
3. Cell protection
Overcharge Detection 3.75V ±25mV (900 to 1500msec delay, release 3.6V ±50mV) Overdischarge Detection 2.1V ±50mV (105to 75msec. delay, release 2.3V ±100mV) Overcurrent Detection 3A to 6A (6 to 15msec. delay) Short protection Yes
When designing compact IoT devices, sensors, or specialized electronics, choosing the right battery is critical. The 3.2 V 370mAh LiFePO4 502540 battery offers stable voltage, low internal resistance, and exceptional temperature resilience, ensuring reliable operation for demanding industrial applications.
Part 1. Why the 502540 LiFePO4 battery matters for B2B applications
For engineers and system integrators, the 502540 battery provides predictable performance across long-term deployments. Its high-quality lithium iron phosphate chemistry guarantees consistent output while minimizing the risk of thermal runaway, making it ideal for devices operating in varying temperature conditions.
This battery’s compact design and lightweight form factor allow seamless integration into space-constrained modules without compromising energy efficiency or cycle life.
Part 2. Key advantages of the 502540 battery for industrial use
1 Stable performance under wide temperature ranges
The 502540 LiFePO4 battery operates reliably from -10℃ to 80℃, ensuring your equipment functions effectively in both hot and cold environments. Its robust thermal tolerance reduces downtime and enhances system reliability.
2 Long cycle life for reduced maintenance costs
With over 1000 charge-discharge cycles maintaining ≥92% capacity and up to 2000 cycles retaining ≥80%, this battery significantly reduces the frequency of replacements, lowering total cost of ownership for commercial deployments.
3 Compact and lightweight design
Weighing only approximately 10 grams, the 502540 battery fits easily into compact devices and modular assemblies, making it an excellent choice for IoT, wearable, and sensor applications where space is at a premium.
4 Built-in safety and protection
This battery comes with integrated PCM and optional NTC, providing overcharge, overdischarge, and overcurrent protection. Your systems stay safe, even in challenging operational conditions.
Part 3. Applications and integration tips
The 502540 battery is suitable for a wide range of B2B use cases:
- IoT devices and environmental sensors
- Compact industrial modules and measurement instruments
- Temperature-sensitive electronics for field deployments
- Low-power backup systems and portable monitoring devices
To maximize performance, match battery packs with devices based on discharge current requirements and operating temperature range. This ensures optimal efficiency and longevity for your projects.
Part 4. Why choose 502540 LiFePO4 battery for your business?
From high reliability under varying temperatures to long-term cycle stability, the 502540 battery is designed for industrial-grade applications where downtime is costly. Its combination of safety, energy density, and compact form makes it a preferred choice for system integrators and OEMs.
Ready to power your devices with the 502540 LiFePO4 battery? Contact our team today for custom solutions, pricing, and integration support.
FAQs
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What makes the 502540 LiFePO4 battery different from standard small cells?
The 502540 battery is engineered for stable 3.2V output and wide temperature tolerance, offering reliable performance where standard small Li-ion cells may fail in temperature-sensitive applications. -
What temperature range can this battery safely operate in?
The 502540 LiFePO4 battery operates reliably from -10℃ to 80℃, making it suitable for IoT devices, sensors, and outdoor electronics that experience varying environmental conditions. -
How long is the cycle life of the 502540 LiFePO4 battery?
This battery is designed for long-term use, maintaining over 92% capacity after 1000 cycles and around 80% capacity even after 2000 cycles, ensuring minimal replacement and maintenance. -
What is the maximum charge and discharge current?
The 502540 battery supports up to 370mA for both charging and discharging, with a standard current of 185mA, providing reliable power for compact electronics and low-drain IoT modules. -
Can this battery be used in compact and portable devices?
Yes, with its lightweight design (~10g) and compact 502540 form factor, this LiFePO4 battery easily integrates into space-constrained devices without adding bulk. -
Is the 502540 battery customizable for specialized applications?
Absolutely. The battery can be customized with optional PCM/NTC modules, tailored connectors, or assembled into custom packs to meet specific voltage, current, or thermal requirements for specialized applications.
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