Under optimal conditions, a 3.7V lithium-ion cell can last between two to three years or about 500 charge cycles. However, real-world usage often leads to shorter lifespans due to improper charging practices, extreme temperature exposure, and high-drain usage.Key Features:

• Brand: Samsung/Other Brands -Original 
• Cell Type: 21700 Li-ion (INR)
• Nominal Voltage: 3.7V
• Typical Capacity: 5000mAh
• Rechargeable: Yes
• Cycle Life: 1000+ cycles (under proper usage)
• Discharge Rating: Supports high-drain devices (exact amp rating depends on model, e.g., 10A–15A)
• Form Factor: 21700 (21mm diameter × 70mm length)
• Top Style: Flat top (unprotected)
• Quality Grade: OEM / Industrial-grade

Applications:

• Electric vehicles (EVs) and e-bikes
• Home and commercial energy storage systems
• Power tools and industrial equipment
• Portable power stations
• Flashlights, drones, and RC devices
• DIY battery pack projects