SVOLT 21700 4200mAh 12.6A Battery

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Description

Elevate your devices with the SVOLT 21700 4200mAh 12.6A Battery, a powerhouse of energy designed for high-efficiency power solutions. With a substantial 4200mAh capacity and a maximum continuous discharge rate of 12.6A, this flat-top, unprotected lithium-ion cell delivers consistent, reliable power. Engineered for safety and performance, the SVOLT battery requires integration into battery packs with appropriate PCB (Protection Circuit Board) or BMS (Battery Management System), which are not included, to ensure safe operation. Perfect for high-demand electronics and applications requiring a durable power source.

  • High Capacity: 4200mAh capacity provides long-lasting power for all your energy-intensive devices.
  • Powerful Discharge: Delivers a maximum continuous discharge rate of 12.6A, ideal for applications requiring robust power output.
  • Optimal Voltage: Operates with a nominal voltage of 3.6V and can reach a maximum of 4.2V, optimizing energy efficiency.
  • Safety First: Designed for use in protected battery packs to ensure safe operation with necessary external circuit protection (not included).
  • Durable and Reliable: Crafted with precision and made to last, with dimensions of 21.6mm x 71.4mm and a weight of 68g, ensuring high performance and durability.


SPECIFICATIONS

Manufacturer: SVOLT
Model: 21700-4200mAh
Size: 21700
Positive Terminal: Flat Top
Nominal Capacity: 4200mAh
Continuous Discharge Rating (max): 12.6A Max (3C)
Nominal Voltage: 3.6V
Maximum Voltage: 4.2V
Discharge cut-off Voltage: 2.75V
Protected: NO, UNPROTECTED.
Rechargeable: Yes
Approx. Dimensions: 21.6mm x 71.4mm
Approx. Weight: 68g
Country of Origin: China


⚠ Important Safety Warnings

Improper handling or misuse of this lithium-ion battery can result in FIRE, EXPLOSION, or THERMAL RUNAWAY, causing personal injury, property damage, or death. Users must read and follow all safety guidelines before purchase and use. Click here to review the full safety guidelines.

  • Critical Warning: Never carry loose batteries in your pocket, purse, or bag. Loose batteries can come into contact with metal objects like keys or coins, causing a short circuit, which may result in severe burns, fire, or explosion. Always store or transport batteries in a protective case.
  • Intended Use: This battery is designed for integration into protected battery packs with a Battery Management System (BMS) or Protection Circuit Board (PCB). It is not intended for standalone use or for e-cigarettes, vaporizers, or similar devices.
  • Thermal Runaway: A chain reaction where heat from a failing battery causes further overheating, potentially leading to fire or explosion.
    • Causes: Overcharging, short circuits, physical damage, or exposure to high temperatures.
    • Prevention: Use a smart charger, avoid damage, and store batteries in a cool, dry place.
  • Storage & Transport: Always store batteries in protective cases to prevent accidental contact with metal objects. Never store loose batteries in pockets, purses, bags, or near conductive materials.
  • Inspection: Do not use if the PVC wrapper, terminal insulator, or casing is damaged, dented, leaking, or bulging. Continued use could result in failure, fire, or explosion.
  • Charging: Use a smart charger specifically designed for lithium-ion batteries and ensure the charger's voltage matches the battery's specifications. Never overcharge, over-discharge, or leave unattended while charging.
  • Prohibited Activities:
    • Do not expose the battery to extreme heat, fire, or liquids.
    • Do not short circuit, puncture, crush, or modify the battery.
    • Do not charge or discharge beyond the manufacturer’s voltage range.
    • Do not dispose of in regular trash—always recycle at approved facilities.
  • Emergency Response: If the battery overheats, emits smoke, or swells, move it to a non-flammable surface (e.g., sand or concrete) and stop use immediately. In case of fire, use a Class D fire extinguisher or sand. Do not use water.

Disclaimer

18650Battery.com is not responsible for any damages, injuries, or claims arising from improper use, handling, or failure to follow these safety guidelines. Lithium-ion batteries require strict adherence to all safety protocols. It is the reseller's responsibility to ensure all safety warnings and product guidelines are effectively communicated to customers. Users and resellers assume full responsibility for the safe handling, usage, and distribution of this product.

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