BTCAP 42P 21700 4200mAh 70A Battery


Price:
Sale price$9.99

Description

BTCAP 42P 21700 Battery – 4200mAh 70A High-Drain Lithium-Ion Power Cell

The BTCAP 42P 21700 is a high-performance lithium-ion rechargeable battery engineered for demanding energy storage and electronic applications. With a typical capacity of 4200mAh and a maximum continuous discharge current of 70A, this cell is ideal for high-drain systems such as power tools, home appliances, electric toys, and custom battery packs. Its low internal resistance and stable voltage output ensure efficiency and durability under load.

Featuring LiNiMnCoO2 (NMC) cathode chemistry, the BTCAP 42P is built for safety and reliability, delivering consistent energy across a wide range of applications. With up to 500 charge cycles, it is both a cost-effective and long-lasting solution for modern energy needs.

Key Features:

  • High Capacity: 4200mAh (4100mAh minimum) for extended device runtime.
  • 70A Max Continuous Discharge: Supports ultra high-drain devices with stable power delivery down to 2.5V.
  • Durable NMC Chemistry: Built using LiNiMnCoO2 for high energy density and thermal stability.
  • Low Internal Resistance: Direct current resistance =8mO for efficient, high-load performance.
  • Versatile Applications: Ideal for toys, power tools, consumer electronics, and custom energy storage solutions.
SPECIFICATIONS
Manufacturer: BTCAP
Model: 42P
Size: 21700
Positive Terminal: Flat Top
Nominal Capacity: 4200mAh
Continuous Discharge Rating (max): 70A
Nominal Voltage: 3.6V
Maximum Voltage: 4.2V
Discharge cut-off Voltage: 2.5V
Protected: NO, UNPROTECTED.
Rechargeable: Yes
Approx. Dimensions: 21.6mm x 70.5mm
Approx. Weight: 68g
Country of Origin: China

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