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3.7V 500mAh Rechargeable Li-Polymer Battery - Ultra-Thin, High-Quality from China Suppliers & Factory
| Nominal Voltage | 3.7V | Nominal Capacity | 500mAh |
| Size | 5.2*22.5*47.5mm | Rough Weight | 10g |
| Battery Type | Li-polymer | Cycle Life | 500 times |
| Standard Charge | 0.2C | Max Charge | 1.0C |
| Standard Discharge | 0.2C | Max Discharge | 1.0C |
| Charge Temperature | 0–45℃ | Discharge Temperature | -10 ~ +60℃ |
Product Introduction
Li-Polymer
500mAh Capacity
500+ Cycle Life
Leak / Fire / Explosion Safe
Customizable Size
The 502245 3.7V 500mAh rechargeable Lithium Polymer battery delivers reliable power in a compact, lightweight package. Utilizing gel polymer electrolyte and flexible aluminum-plastic packaging, it ensures absolute safety with no risk of leakage, fire or explosion. This 500mAh cell offers stable discharge voltage and low self-discharge, supporting 500+ charge cycles. Its slim profile and customizable size make it adaptable to various device requirements, providing consistent performance for space-constrained applications where reliability is paramount.
Frequently Asked Questions
Q
What does the model number "502245" represent for this battery?
The model number "502245" follows the standard Li-polymer naming convention. The first two digits (50) indicate the thickness in tenths of a millimeter (5.0mm), the next two digits (22) indicate the width in millimeters (22mm), and the last two digits (45) indicate the length in millimeters (45mm). This corresponds to the listed dimensions of 5.2×22.5×47.5mm.
Q
Is the 502245 3.7V 500mAh battery safe to use in consumer electronics?
Yes. This Li-polymer battery uses gel polymer electrolyte and flexible aluminum-plastic packaging, which eliminates the risk of leakage, fire, or explosion under normal operating conditions. It is designed to meet safety requirements for a wide range of consumer electronics and portable devices.
Q
What is the recommended charging method for this battery?
The standard charge rate is 0.2C (100mA), which ensures the longest cycle life and optimal safety. The battery also supports a maximum charge rate of 1.0C (500mA) for faster charging when required. Always use a charger compatible with 3.7V Li-polymer cells and avoid overcharging beyond 4.2V.
Q
How many charge cycles can this 500mAh Li-polymer battery handle?
This battery is rated for 500+ charge/discharge cycles. After 500 cycles under standard conditions (0.2C charge and discharge), the battery is expected to retain a significant portion of its original capacity, making it suitable for long-term use in rechargeable applications.
Q
What temperature ranges are safe for charging and discharging this battery?
The safe charging temperature range is 0°C to 45°C. For discharging, the battery operates reliably between -10°C and +60°C. Operating outside these temperature ranges may reduce performance, shorten cycle life, or pose safety risks, so it is important to store and use the battery within the specified limits.
Q
Can the size or capacity of this Li-polymer battery be customized for specific applications?
Yes. This battery features a slim profile and supports customizable sizing to meet the specific space and power requirements of different devices. Manufacturers and product designers can request custom dimensions or configurations to ensure the battery fits precisely within space-constrained applications while maintaining reliable performance.







