Product Description
Lithium Polymer Battery Cell 502540 3.7v 500mAh 1.85wh Lithium Ion Batteries For Monitor
| NO. | Items | Specifications |
| 1 | batteries | 3.7v 500mah lipo battery |
| 2 | Charge voltage | 4.2V |
| 3 | Nominal voltage | 3.7V |
| 4 | Nominal capacity | 500mAh 0.2C Discharge |
| 5 | Charge current
| Standard Charging:0.5C
Rapid charge: 1.0C |
| 6 | 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 |
| 7 | Charging time
| Standard Charging:2.75hours(Ref.)
Rapid charge: 2hours(Ref.) |
| 8 | Max.charge current | 1.0C |
| 9 | Max.discharge current | 1.0C |
| 10 | Discharge cut-off voltage | 2.5V 0.25V(0.2C) |
| 11 | Operating temperature | Charging: 0 °C ~45 °C
Discharging:0 °C ~45 °C |
| 12 | Storage temperature | -10°C~ +45 °C |
| 13 | Dimension | Length: 40±2mm (not including tabs)
Width: 25±0.5mm
Thickness:5±0.2mm |
| 14 | Drop Test | The cell is to be dropped from a height of meter twice onto concrete ground. No fire, no leakage |
| 15 | cycle time | ≥500times |
Main Advantages:
Advantages of the 502540 Lithium Polymer Battery
The extremely thin and flexible design utilizes an aluminum-plastic film soft-package package, boasting a thickness of only 5mm. It can be bent 90° or conform to curved surfaces, making it suitable for space-sensitive devices such as smartwatches (such as the Apple Watch Ultra) and wireless earbuds (such as the AirPods Pro).
High-rate discharge performance with low internal resistance (<100mΩ) supports 2C continuous discharge (1A) and instantaneous discharge up to 5C (2.5A), making it suitable for applications requiring high instantaneous currents such as drones and remote-controlled cars.
Highly safe solid-state/gel electrolytes are non-leakage-resistant, resulting in only swelling and no explosion during thermal runaway, and pass needle penetration testing.
Lightweight, making it suitable for weight-sensitive wearables and portable electronics.
Advantages of the 14500 Lithium-ion Battery:
The long-cycle lithium iron phosphate version boasts a cycle life of over 2,000 cycles, four times that of lithium polymer batteries, making it suitable for power tools and energy storage devices that require frequent charging and discharging.
Better low-temperature performance: At -20°C, the capacity retention rate is about 80%, while lithium polymer batteries need improved electrolyte to achieve a capacity retention rate of 60% at -30°C. This makes it more reliable in northern winters or industrial low-temperature environments.
Application:
Typical Applications of 502540 Lithium Polymer Batteries
Consumer Electronics: Smartwatches, Neckband Headphones
Medical Devices: Insulin Pumps, Portable ECG Monitors
Industrial Equipment: Drones, Microrobots
Flexible Electronics: Electronic Skin, Wearable Sensors
Typical Applications of 14500 Lithium-ion Batteries
Power Tools: Cordless Screwdrivers, Electric Drills
Energy Storage Devices: Solar Street Lights, Emergency Power Supplies
Low-Temperature Environment Equipment: Outdoor Surveillance Cameras for Northern Winters, Low-Temperature Sensors
Warnings:
1. Do not submerge the battery in the water.
2. Do not mix fresh batteries with used batteries.
3. Do not mix batteries with metal stuff together.
4. Do not insert batteries with the (+) and (-) reversed.
5. Do not disassemble, dispose in fire, heat or short circuit.
6. Do not put the battery in a charger or equipment with wrong terminals connected.
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