Introduction
Lithium Ion Polymer Battery 3.7 V 500mah provides compact, high-density power that solves tight spatial constraints in wearables while ensuring stable voltage and long-term cycle reliability for high-end hardware.
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Items |
Specifications |
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Battery Type |
3.7V Lithium Polymer Battery |
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Charge voltage |
4.2V |
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Nominal voltage |
3.7V |
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Nominal capacity |
500mAh (Standard 0.2C discharge) |
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Charge current |
Standard Charging: 0.5C Rapid charge: 1.0C |
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Standard Charging method |
0.5C CC (constant current) charge to 4.2V, then CV (constant voltage 4.2V) charge till charge current decline to ≤0.05C |
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Charging time |
Standard Charging Time: approx. 2.75 hours.Fast Charging Time: approx. 2 hours |
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Max.charge current |
1.0C |
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Max.discharge current |
1.0C |
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Discharge cut-off voltage |
2.75V(0.2C) |
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Charging Temperature: |
0 °C ~45 °C |
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Discharging Temperature |
-10°C~ +45 °C |
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Dimension |
Length: 50±2mm (not including tabs) Width: 20±0.5mm Thickness:10±0.2mm |
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Drop Test |
The cell is to be dropped from a height of 1 meter twice onto concrete ground. No fire, no leakage |
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Cycle Life |
≥300times |
Key Features
Long Cycle Life Stability
High-stability lithium cobalt chemistry supports approximately 300–500 charge cycles, with controlled capacity retention for long-term device reliability.
Built-in PCM Protection System
Integrated protection circuit prevents overcharge, over-discharge, and short circuit, ensuring safe operation in consumer electronics applications.
Compact High Energy Density Design
Provides higher energy density compared to standard 400–500mAh cells within the same footprint, supporting longer device runtime without redesigning housing structure.
Customization Services
Connectors & Leads
Customized wire lengths with genuine JST, Molex, Hirose, or PHR terminals to match your PCB header.
Battery Pack Assembly
Support for multi-cell configurations in series (7.4V, 11.1V) or parallel (1000mAh+) to meet specific power needs.
High-Rate Discharge
Specialized cells supporting 3C, 5C, or 10C discharge rates for mini-drones and industrial power tools.
NTC Integration
Built-in 10K/100K thermistors for precise temperature monitoring during fast charging.
Applications
Industrial Devices: Handheld barcode scanners, portable thermal printers, and two-way radios.
Smart Home: Video doorbells, wireless smart thermostats, and security sensors.
Medical Care: Portable ECG monitors, blood oxygen meters, and handheld therapy devices.
Consumer Tech: Kids' smartwatches, dash cameras, and portable game consoles.
Compliance & Logistics
We provide a comprehensive documentation suite to ensure smooth global distribution:
Certifications: UN38.3, MSDS, CE, RoHS, IEC62133, and REACH.
Packaging: Industrial anti-static tray packaging strictly compliant with IATA Dangerous Goods Regulations for air and sea freight.
FAQ
Q: Is 500mAh the actual minimum capacity or typical?
A: We list the typical capacity. The minimum guaranteed capacity is usually within 95% of the nominal value, ensuring your device meets its runtime specifications.
Q: Can you provide a specific thickness to fit my enclosure?
A: Yes. We can adjust the thickness from 3mm to 10mm. Please contact our engineers to confirm the capacity-to-size ratio.
Q: How do you handle shipping for lithium batteries?
A: We are fully licensed for "Dangerous Goods" shipping. We provide all necessary UN38.3 and MSDS reports for air or sea freight to your port of choice.
Q: How do you control batch-to-batch consistency?
A: We use an automated grading system to sort cells based on capacity and internal resistance, ensuring stable electrical performance within the same production batch.
Q: What is the typical cycle life of this battery?
A: The battery is designed for approximately 300–500 charge cycles under standard conditions, with controlled capacity retention for long-term device use.
Q: Can I request samples before mass production?
A: Yes. We provide engineering samples for fitment testing and performance validation before confirming bulk orders.
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