Introduction
The 50mAh Polymer Lithium-ion Battery is a 3.7V miniature energy storage battery suitable for powering Bluetooth headsets, smart wristbands, and IoT devices.
Parameter
|
Items |
Specifications |
|
Batteries |
3.7v 50mah lipo battery |
|
Charge voltage |
4.2V |
|
Nominal voltage |
3.7V |
|
Nominal capacity |
280mAh 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) |
|
Operating temperature |
Charging: 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 meters twice onto concrete ground. No fire, no leakage |
|
Cycle time |
≥300times |
Features of 50mah Polymer Lithium Ion Battery
Stable Batch Consistency
Through capacity grading and internal resistance screening, the 50mAh Polymer Lithium-Ion Battery maintains a voltage deviation of ≤±0.05V and capacity deviation of ≤±3% per batch, reducing assembly yield risks in mass production.
Optimized for Ultra-Compact Devices
With a 1mm-class aluminum-plastic pouch structure, the battery can be directly integrated into TWS earbuds, wearables, and micro sensors without additional structural support.
Supports Small-Batch Pilot Production
With a minimum order of 100 units, the battery is suitable for prototype validation, power matching tests, and early-stage pilot production.
Customization
|
Item |
Customization Details |
|
Capacity & Voltage |
Adjustable capacity and voltage structure according to device power consumption requirements |
|
Dimensions |
Customizable length, width, and thickness |
|
Leads & Connectors |
Supports JST, Molex, and bare wire configurations |
|
Protection System |
Supports integration of PCM and NTC temperature control modules |
FAQ
Q: What is the working principle of the 50mAh Polymer Lithium-ion Battery?
A: The 50mAh Polymer Lithium-ion Battery achieves charging and discharging-thereby storing and releasing energy-through the intercalation and de-intercalation of lithium ions between the positive and negative electrodes.
Q: Which devices is it suitable for?
A: It is suitable for low-power devices such as Bluetooth headsets, smart wristbands, medical patches, and miniature IoT sensors.
Q: What is the Minimum Order Quantity (MOQ)?
A: The standard MOQ is 100 units; sample orders can be arranged separately.
Q: What is the lead time?
A: Samples are completed within 3–5 days, while mass production takes approximately 10–20 days.
Q: What is the lifespan?
A: Under standard operating conditions, the 50mAh Polymer Lithium-ion Battery has a cycle life of over 500 charge-discharge cycles.
Q: How should it be stored?
A: It should be stored in a dry environment at a temperature of 20–25°C, maintaining a charge level of 50%.
Q: Is shipping supported?
A: It complies with the UN38.3 standard and is eligible for both air and sea freight.
Q: What is the packaging method?
A: It utilizes layered packaging consisting of anti-static trays and insulating bags.
Q: What is the charging method?
A: It employs the Constant Current/Constant Voltage (CC/CV) charging method.
Q: How is it installed?
A: It is integrated into the device's mainboard via soldering or connectors.
Certificate
Certified with ISO9001, UL, KC, CCC, and RoHS certifications, meeting international quality and safety standards.
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