Li-ion rechargeable battery INR21700

cylindricalfor electric vehiclesIoT

Product Name
Pkcell ICR/INR21700 Li‑ion battery

Brief Description
Pkcell ICR/INR21700 is a high‑capacity, rechargeable lithium‑ion cylindrical cell (21700) for consumer electronics, power tools, electric vehicles and OEM battery packs. Nominal voltage is ~3.7 V and capacity depends on configuration: the page cites typical ranges of 3500–5000 mAh and alternative listings of 4000–5500 mAh. The cell is designed for long runtime, low self‑discharge and stable Li‑ion chemistry.

Key Advantages

• High capacity options: 3500–5500 mAh depending on SKU
• Stable ICR/INR lithium‑ion chemistry
• Rechargeable with long cycle life (typically 500–1000 cycles)
• Standard 21700 format (21.3 x 70.0 mm) for wide compatibility
• Low self‑discharge and no memory effect
• Flexible MOQ and OEM/sample support

Quick Product Facts

• Size: 21.3 x 70.0 mm (21700)
• Nominal voltage: ~3.7 V
• Capacity (page references): typical 3500–5000 mAh; other listings 4000–5500 mAh
• Operating temperature: -20 °C to 60 °C
• Cycle life: typically 500–1000 cycles (page cites 500+)
• Certifications mentioned: IEC62133, CE, UN38.3, RoHS, REACH (page also references CQC, KC, UL, CB, UL1642, UL2054)

Applications

• Consumer electronics
• Power tools
• Electric vehicles and e‑mobility
• IoT devices and OEM 21700 battery packs

Technical specifications

• Model / designation: INR21700 / ICR21700
• Cell dimensions: 21.3 x 70.0 mm
• Chemistry: Lithium‑ion (ICR / INR)
• Nominal voltage: ~3.7 V
• Capacity: 3500–5000 mAh (typical); alternate listings 4000–5500 mAh
• Operating temperature: -20 °C to 60 °C
• Cycle life: ~500–1000 cycles
• Self‑discharge: low
• Memory effect: none
• Certifications / standards: IEC62133, CE, UN38.3, RoHS, REACH (additional certifications referenced on page)