The 602035-400mAh Polymer Lithium Ion Battery is a 3.7V polymer lithium battery for portable electronic devices, available for bulk orders and customization.
The 602035-400mAh Polymer Lithium Ion Battery provides a stable 400mAh capacity output at 0.2C discharge, with a smooth voltage plateau, making it suitable for portable devices with stringent battery life requirements.
The battery employs a constant current, constant voltage charging method, charging to 4.2V at 0.5C in approximately 3.5 hours.
This battery uses stable cell materials, achieving a cycle life of >=300 cycles, supporting 1–2 years of normal device use.
This model supports customization of cables, interfaces, and protection schemes.
Why We Are the Leading Manufacturer of 602035-400mah Polymer Lithium Ion Battery
Equipped with hundreds of high-precision automated machines, including winding machines, mixers, vacuum ovens, automatic slitting machines, and fully automated packaging equipment.
Offering TWS batteries, 30-90 series, fast charging, 1-3C series, and customized batteries to meet the needs of various end devices.
Products are widely used in Bluetooth headsets, smart wearables, smart homes, smart healthcare, GPS, drones, small lighting, and many other fields.
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.
A: 2–7 days for in-stock items, approximately 25–30 days for mass production.
A: Yes, test data is provided; the actual capacity is usually higher than the nominal capacity.
A: DHL/TNT/FedEx/UPS or your preferred freight forwarder. Photos of the packaging and tracking number will be provided.
A: The 602035-400mAh Polymer Lithium Ion Battery stores and releases energy by moving lithium ions between the positive and negative electrodes.
A: This battery is suitable for walkie-talkies, portable speakers, health monitoring devices, and beauty devices.
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4.2V |
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3.7V |
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400mAh 0.5C Discharge |
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Standard Charging:0.5C Rapid charge:2.0C |
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Standard discharging:0.5C Rapid discharging:1.0C |
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0.5C CC(constant current)charge to4.2V,then CV(constant voltage 4.2V)charge till charge current decline to <=0.02C |
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Standard Charging :3.5 hours |
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1C CC(constant current)discharge to Min Discharge cut-off voltage(3.3) |
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Charging :0℃~45℃ Discharging :-20℃~60℃ |
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-20℃~ +50℃ |
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45~65%RH |
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| Length:35±2mm Width:20±0.2mm Thickness:60±0.2mm | |
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The battery to be fully charged with standard charging condition ,then fall from height of 1.0m and hit onto concrete ground 2 times |
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| >=300times >=300 |
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