Eu Stock Reliance RS50/RS60 a Grade 21700 5000mah 70A 3.6v Rechargeable Tabless 21700 Cells for Battery Pack Flashlight

  • 5000mAh High Capacity for Longer Tool Runtime
  • Up to 70A maximum continuous discharge under specified test conditions.
  • 5000mAh + High Current in One 21700 Cell
  • ≤4.0mΩ Low Internal Resistance Internal Resistance ≤4.0mΩ
  • Wide Discharge Temperature Range -30°C to 75°C Discharge
  • Designed for Battery Pack Integration
  • Battery Pack OEM/ODM Support

21700 RS50 Battery Cell Specifications

アイテム 仕様
製品名 21700 RS50 Lithium-ion Battery Cell
モデル INR21700-RS50
電池のタイプ Rechargeable Lithium-ion Cell
Cell Format 21700 Cylindrical
公称電圧 3.6V
公称容量 5000mAh / 5ああ
Minimum Capacity 約. 4950mAh*
Nominal Energy 18うーん
充電電圧 4.2V
Discharge Cut-off Voltage 2.5V
Maximum Continuous Charge Current Up to 15A*
Maximum Continuous Discharge Up to 70A*
Cell Diameter 約. 21.1–21.35mm*
Cell Height 約. 70.2–70.3mm*
重さ 約. 66–67g*
Chemistry NMC / Ni-based Lithium-ion
Cell Structure Cylindrical High-Power Cell
サイクルライフ 500+ cycles*
動作温度 Application dependent
Terminal Flat Top
Protection Unprotected Cell
応用 High-Power Battery Pack
OEM/ODM Supported

* 注記: Public sources show different revisions/test conditions for some specifications, particularly discharge current, dimensions, cycle-life definition and temperature limits. For your final independent-site datasheet, I recommend replacing these values with the latest original manufacturer datasheet for your actual RS50 batch. 例えば, one public manufacturer-derived source lists 70A continuous discharge with an 80°C cutoff, while another technical database evaluates the cell at 40A continuous.

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  • 5000mAh High Capacity for Longer Tool Runtime
  • Up to 70A maximum continuous discharge under specified test conditions.
  • 5000mAh + High Current in One 21700 Cell
  • ≤4.0mΩ Low Internal Resistance Internal Resistance ≤4.0mΩ
  • Wide Discharge Temperature Range -30°C to 75°C Discharge
  • Designed for Battery Pack Integration
  • Battery Pack OEM/ODM Support

1. 5000mAh High Capacity

The 5Ah nominal capacity provides approximately 18Wh of energy per cell, helping battery manufacturers achieve longer runtime without increasing the number of cells excessively.

Customer Benefits:

  • Longer operating time
  • Higher pack energy
  • Fewer cells for certain pack configurations
  • Better space utilization

2. High-Power Discharge Capability

RS50 is designed for high-drain applications where conventional energy-oriented cells may not provide sufficient power.

Public sources report high continuous-current capability, with the exact allowable current dependent on thermal conditions and the applicable manufacturer specification.

Customer Benefits:

  • Strong acceleration response
  • Stable high-load operation
  • Reduced voltage sag
  • Suitable for demanding power systems

3. 高エネルギー密度 21700 Format

の 21700 cylindrical format provides a useful balance between capacity, power and pack integration.

Customer Benefits:

  • Higher capacity per cell
  • Compact battery pack design
  • Efficient use of internal pack space
  • Suitable for high-performance battery systems

The RS50 is reported at approximately 269Wh/kg gravimetric energy density in public cell databases.


4. Designed for High-Drain Applications

The RS50 is particularly suitable when equipment requires both energy and high current.

Recommended applications:

  • E-bike
  • Light EV
  • 電動工具
  • ロボット工学
  • Industrial equipment
  • High-power battery packs
  • Custom lithium battery systems

5. Flexible Battery Pack Configuration

The cell can be connected in series and parallel configurations to create different battery pack specifications.

例えば:

10S2P → 36V-class battery pack

13S2P → 48V-class battery pack

14S4P → high-capacity 48V-class battery pack

The final configuration should be selected according to the required voltage, 容量, 現在, BMS and thermal design.


6. Suitable for Professional OEM Battery Development

The RS50 can be integrated into customized battery packs for equipment manufacturers and battery-pack companies.

OEMサポート:

  • Battery pack design
  • Series/parallel configuration
  • BMS integration
  • コネクタの選択
  • Structural design
  • Custom labeling
  • Custom packaging

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YiFang はバッテリーの専門店です, 充電器, バッテリーパック, およびパワーソリューション, リチウムイオンを含む, リチウム (IMR), ニッケル水素, およびLiFePO₄バッテリー.

はい, 柔軟な OEM および ODM カスタマイズを提供します, プロダクトデザインも含めて, 仕様, お客様の正確な要件を満たすためのパッケージング.

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当社の製品は電子タバコに広く使用されています, 無人航空機, バランススクーター, 電動自転車, 電子機器, おもちゃ, 懐中電灯, およびその他の商業および産業用途.

当社の製品は電子タバコに広く使用されています, 無人航空機, バランススクーター, 電動自転車, 電子機器, おもちゃ, 懐中電灯, およびその他の商業および産業用途.

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