21700 Rechargeable Lithium-Ion Battery – 6000mAh 3.7V High-Capacity Cell

$19.99

Built for real-world use
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  • 6000mAh capacity delivers long runtime for high-output devices
  • 21700 size provides stronger sustained power than smaller cells
  • Built-in protection supports safe charging and operation
  • Rechargeable lithium-ion design with no memory effect

FAQS
  • Is 6000mAh high capacity for a 21700 battery?
    Yes. 6000mAh provides extended runtime compared to standard-capacity cells.
  • Does this battery include protection?
    Yes. It includes built-in protection against short-circuit and overload.
  • Is there a memory effect?
    No. Lithium-ion chemistry allows recharging at any level.
  • Will this fit my flashlight?
    It fits devices specifically designed for standard 21700 batteries.

Full Specifications

• Battery Type: Rechargeable lithium-ion
• Size Format: 21700
• Capacity: 6000mAh
• Nominal Voltage: 3.7V
• Rechargeable: Yes
• Protection: Integrated short-circuit and overload protection
• Cycle Life: Up to 500 recharge cycles

Best Uses & Real-World Applications

• High-output flashlights designed for 21700 batteries
• Extended runtime applications
• Emergency and backup power kits
• Users who want fewer battery changes during use

Shipping Info

Orders typically ship within 24 hours (excluding holidays)

Description

21700 Rechargeable Lithium-Ion Battery

The TF 21700 rechargeable battery is built for users who want maximum runtime without constant battery swaps. With a high 6000mAh capacity at 3.7V, it delivers sustained power for high-output flashlights and compatible devices.

The larger 21700 format stores more energy than smaller cells, supporting longer use while maintaining stable output. Integrated protection helps support safe charging and operation, guarding against short-circuit and overload.

Rechargeable lithium-ion chemistry offers no memory effect, making it easy to recharge at any level and reuse repeatedly for long-term value.

Why Choose The TF 21700 Battery

  • Massive 6000mAh capacity supports extended runtime per charge
  • 21700 size delivers strong, consistent power output
  • Built-in protection supports safer charging and use
  • Rechargeable design with no memory effect
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