The 3.7 V 320mAh lithium polymer battery is a rechargeable lithium polymer battery used to power small electronic devices. It is available for bulk orders and customization.
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Items |
Specifications |
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Batteries |
3.7v 320mah lipo battery |
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Charge voltage |
4.2V |
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Nominal voltage |
3.7V |
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Nominal capacity |
280mAh 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: 2.75hours(Ref.) Rapid charge: 2hours(Ref.) |
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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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Perating temperature |
ChCharging: 0 °C ~45 °C Discharging:0 °C ~45 °Carging: 0 °C ~45 °C |
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Discharging:Storage temperature0 °C ~45 °C |
-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 meter twice onto concrete ground. No fire, no leakage |
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Cycle time |
≥300times |
Product Features
High Safety
It employs a polymer separator and built-in safety protection layer to prevent overcharging, over-discharging, and short circuits.
Fast Charging Support
The battery supports 1.0C fast charging, fully charging in approximately 2 hours.
Long Cycle Life
The 3.7 V 320mAh lithium polymer battery has a cycle life of ≥300 cycles under standard use conditions, meeting the needs of 1–2 years of normal use.
Why We Are the Leading Manufacturer of 3.7 V 320mah Lithium Polymer Battery
Wide Application Areas
Products are widely used in Bluetooth headsets, smart wearables, smart homes, smart healthcare, GPS, drones, small lighting, and many other fields.
Advanced Production Equipment
Equipped with hundreds of high-precision automated machines, including winding machines, mixers, vacuum ovens, automatic slitting machines, and fully automated packaging equipment.
Strict Quality Control
Comprehensive quality control throughout the entire process, including raw material selection, production process monitoring, 100% functional testing, multi-dimensional structural inspection, and pre-shipment aging testing, ensuring the safety and reliability of every battery.
Diverse Product Lines
Offering TWS batteries, 30-90 series, fast charging, 1-3C series, and customized batteries to meet the needs of various end devices.
Frequently Asked Questions
Q: What is the delivery time for bulk orders?
A: 2–7 days for in-stock items, approximately 25–30 days for mass production.
Q: Is the battery capacity accurate?
A: Yes, test data is provided; the actual capacity is usually higher than the nominal capacity.
Q: How is it shipped?
A: DHL/TNT/FedEx/UPS or your preferred freight forwarder. Photos of the packaging and tracking number will be provided.
Q: How does the battery work?
A: The 3.7 V 320mAh lithium polymer battery stores energy through the movement of lithium ions between electrodes, thus providing a stable DC output.
Q: Which devices use this type of battery?
A: Commonly used in wearable devices and small electronic devices.
Q: How is the battery packaged?
A: The battery is packaged in an aluminum-plastic film flexible package.
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