• The 21700 battery is a high-capacity, rechargeable lithium-ion cell designed to achieve excellent energy efficiency and performance. These batteries have a standard size of 21 millimeters in diameter and 70 millimeters in length. They were developed as the next-generation improvement of the 18650 cells, offering higher power output, longer runtime, and higher energy density. They are widely used in electric vehicles, industrial equipment, flashlights, and renewable energy storage fields.

• We supply genuine 21700 batteries from brands such as Samsung, SONY, MOLICEL, LG, BAK, LISHEN, and VAPCELL. You're welcome to make a purchase.

Key Features & Technical Specifications

• Battery Chemistry:

  • Lithium Nickel Manganese Cobalt Oxide (NMC - LiNiMnCoO₂): A balanced combination of energy density, power, and safety.
  • Lithium Cobalt Oxide (LCO - LiCoO₂): High energy capacity with moderate discharge rates.
  • Lithium Manganese Oxide (LMO - LiMn₂O₄): Superior thermal stability and safer operation.
  • Lithium Iron Phosphate (LFP - LiFePO₄): Excellent cycle life and extreme durability.

• Voltage: Typically 3.6V or 3.7V nominal, with a full charge voltage of 4.2V and a cutoff around 2.5V - 3.0V.

• Capacity: Ranges from 3000mAh to 5000mAh, depending on the chemistry and application.

• Discharge Rate (CDR): High-drain cells available with 30A, 40A, or even higher CDR ratings for demanding power needs.

• Cycle Life: Designed to last 500 to 1500+ charge cycles, based on proper usage and maintenance.