Lithium Polymer Battery 902540 800mAh 3.7V Apply For Lighting

Lithium Polymer Battery 902540 800mAh 3.7V Apply For Lighting


Li-polymer Battery List
 

 What type of battery is used in emergency exit lights? 

Emergency exit lights typically use rechargeable batteries to provide reliable backup power during power outages. The most common battery types are Nickel-Cadmium (Ni-Cd) and Nickel-Metal Hydride (Ni-MH) batteries, which are known for their durability, stable discharge performance, and long service life. In newer or higher-end models, Lithium-ion (Li-ion) or Lithium Iron Phosphate (LiFePO₄) batteries are increasingly used because they are lighter, have higher energy density, and require less maintenance. The choice of battery type depends on the exit light’s design, safety standards, and expected runtime, which typically ranges from 90 minutes to up to 5 hours during emergencies.

Application :

lighting, backup power supply, wind energy storage, communication equipment, IT products, IC card terminal, GPS system, LED lights, medical equipment,instrumentation, beauty and hair products, electric toys, flashlight, miner's lamp, agricultural machinery equipment, electric tools, etc.

 

Lithium battery use environment and maintenance methods:

Use Environment:
 

1.Temperature: Lithium batteries perform best at temperatures between 20°C to 25°C. Exposure to high temperatures can degrade their performance and lifespan, while low temperatures can affect their capacity and ability to deliver power.

2.Humidity: Lithium batteries are sensitive to moisture and can be damaged by excessive humidity. They should be stored and used in dry environments to prevent corrosion and other issues.

3.Vibration and Shock: Mechanical stress, such as vibration and shock, can damage lithium batteries. They should be handled with care and protected from impact during transport, installation, and use.

4.Chemical Exposure: Exposure to certain chemicals, such as acids and solvents, can damage lithium batteries and pose safety risks. They should be kept away from these substances and properly handled to prevent leakage or damage.
 

Maintenance Methods:
 

1.Charging and Discharging: Lithium batteries should be charged and discharged according to the manufacturer's instructions. Overcharging or over-discharging can damage the battery and reduce its lifespan.

2.Storage: If a lithium battery is not going to be used for an extended period, it should be stored at a partial state of charge (around 40% to 60% capacity) in a cool, dry place.

3.Cleaning: The battery terminals should be kept clean and free of debris to maintain good electrical contact. A soft, dry cloth can be used to clean them.

4.Inspection: Regular inspection of the battery's exterior and connections can help identify any signs of damage or wear. Any issues should be addressed promptly.

5.Recycling: At the end of its life, a lithium battery should be properly recycled to prevent environmental harm and recover valuable materials. Many communities have recycling programs for lithium batteries, and manufacturers may also offer take-back programs.

Performance Curves of Lithium Cell:
 

1.Lithium Cell Charge Curve (Charge at 1C)  
 

2. Lithium Cell Discharge Curve (Discharge at 1C )

3. Lithium Cell Cycle Life Curve