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21700 Lithium-ion Cell

Actual product photo. Color/labeling can be customized.

Cylindrical · Model 21700

21700 Lithium-ion Cell

Cell Type
Cylindrical
Nominal Voltage
3.7V
Rated Capacity
5,000mAh
Size
21700 single cell
Cycle Life
≥ 800 cycles (80% retention)
Connector
XT60 / JST / customizable
Applications
Power ToolConsumer

Specifications

21700

Nominal Voltage3.7V
Rated Capacity5,000mAh
Rated Energy18.5Wh
Limited Charging Voltage4.2V
Max Discharge Current10A
Weight~106 g
Cycle Life≥ 800 cycles (80% retention)
Working TemperatureCharge 0°C ~ 45°C / Discharge -20°C ~ 60°C
ConnectorXT60 / JST / customizable
Dimensions21700 single cell

Features

21700

  • A-grade lithium-ion cells, high consistency
  • Long cycle life ≥ 800 cycles
  • Wide operating temperature -20°C ~ 60°C
  • Smart BMS with multiple safety protections
  • Customizable wiring, connectors and housing

OEM / ODM

Customization options

We design custom battery packs from 10 mAh to 100 kWh. Send us your requirements — our engineers reply within 24 hours.

Request a custom quote →
  • Capacity customization
  • Connector customization
  • PCM / BMS customization
  • Cable length customization
  • Logo printing
  • Battery pack assembly

Get a Quote — 21700

We design custom battery packs from 10 mAh to 100 kWh. Send us your requirements — our engineers reply within 24 hours.

Request a custom quote →