Product Introduction
The Lithium Ion Polymer Battery 3.7 V 400mAh is a high-energy-density rechargeable lithium polymer battery available for bulk orders and customization, suitable for small electronic devices and portable products.
|
Items |
Specifications |
|
Batteries |
3.7v 400mah lipo battery |
|
Charge voltage |
4.2V |
|
Nominal voltage |
3.7V |
|
Nominal capacity |
360mAh 0.2C Discharge |
|
Charge current |
Standard Charging: 0.5C Rapid charge: 1.0C |
|
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 |
|
Charging time |
Standard Charging:2.75hours(Ref.) Rapid charge: 2hours(Ref.) |
|
Max.charge current |
1.0C |
|
Max.discharge current |
1.0C |
|
Discharge cut-off voltage |
2.75V(0.2C) |
|
Perating temperature |
ChCharging: 0 °C ~45 °C Discharging: 0 °C ~45 °Carging: 0 °C ~45 °C |
|
Discharging:Storage temperature0 °C ~45 °C |
-10°C~ +45 °C |
|
Dimension |
Length: 50±2mm (not including tabs) Width: 20±0.5mm Thickness:10±0.2mm |
|
Drop Test |
The cell is to be dropped from a height of meter twice onto concrete ground. No fire, no leakage |
|
Cycle time |
≥300times |
Product Features
Lightweight Design: The battery features a lightweight aluminum foil casing, weighing less than 12 grams, making it easy to integrate into portable devices.
High Safety: The Lithium Ion Polymer Battery 3.7 V 400mAh has built-in overcharge, over-discharge, and short-circuit protection. The flame-retardant casing ensures safer use.
Fast Charging: Supports 1C fast charging, fully charging in just 2 hours.
Long Cycle Life: Utilizes high-quality lithium polymer materials, achieving a cycle life of ≥300 cycles, providing stable operation for over 2 years under normal use.
Why We Are the Leading Manufacturer of Lithium Ion Polymer Battery 3.7 V 400mah
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.
Wide Application Areas
Products are widely used in Bluetooth headsets, smart wearables, smart homes, smart healthcare, GPS, drones, small lighting, and many other fields.
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.
Comprehensive Certification System
Holding CCC certification, ISO9001 quality system certification, UL certification, KC certification, and RoHS standard certification.
Frequently Asked Questions
Q: Can I place a sample order? What is the sample delivery time?
A: Yes, sample delivery is 3–10 days, allowing for performance and quality testing.
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: Which devices is the Lithium Ion Polymer Battery 3.7 V 400mAh suitable for?
A: Suitable for Bluetooth headsets, smart bracelets, drones, and other portable electronic devices.
Q: How to clean the battery?
A: Wipe the casing with a dry cloth, avoiding liquid contact.
Q: Is it short-circuit protected?
A: Yes. It has a built-in short-circuit protection circuit that automatically cuts off the current in the event of a short circuit.
Hot Tags: lithium ion polymer battery 3.7 v 400mah, China lithium ion polymer battery 3.7 v 400mah manufacturers, suppliers, factory, Lithium Ion Polymer Battery 3 7 V 600mah, 3 7 V 320mah Lithium Polymer Battery, 360mah Lithium Polymer Battery, 50mah Polymer Lithium Ion Battery, Battery Of Bluetooth Headphones 300mah, Bluetooth Earphone Battery 300mAh
