BAK 1S 3.7V 20000mAh (20Ah) 1S4P 3C Lithium-Ion Rechargeable Battery Pack

1,474.58 Price Excluding Tax

SpecificationDetails
BrandBAK
Battery TypeLithium-Ion (Li-Ion)
Cell Configuration1S4P
Nominal Voltage3.7V
Nominal Capacity20000mAh (20Ah)
EnergyApproximately 74Wh
Continuous Discharge Rate3C
Maximum Continuous Discharge CurrentUp to 60A
Maximum Charge Voltage4.2V
Recommended Charge MethodCC/CV
Recommended Discharge Cut-off Voltage2.75V–3.0V
RechargeableYes
Cycle LifeUp to 500+ Cycles*
ProtectionOptional PCM/BMS (Model Dependent) (smart bms optional)

Description

BAK 1S 3.7V 20000mAh (20Ah) 1S4P 3C Lithium-Ion Rechargeable Battery Pack

The BAK 1S 3.7V 20000mAh (20Ah) 1S4P 3C Lithium-Ion Rechargeable Battery Pack is a high-performance rechargeable battery pack designed for applications requiring high capacity, stable voltage, and reliable power output. Built using 4 premium BAK lithium-ion cells in a 1S4P configuration, this battery pack offers excellent energy density, low internal resistance, and long service life.

With a 3C continuous discharge rating, the battery can deliver high current for demanding applications while maintaining stable performance. It is suitable for portable power systems, robotics, solar devices, LED lighting, medical equipment, industrial electronics, IoT devices, DIY battery projects, and backup power solutions. Single-cell lithium-ion packs commonly use a 4.2V maximum charge voltage and 2.75–3.0V recommended discharge cut-off, depending on the protection circuit and cell selection.

⭐ Key Features

  • ✔ Premium BAK Lithium-Ion Cells
  • ✔ 1S4P Battery Configuration
  • ✔ 3.7V Nominal Voltage
  • ✔ 20000mAh (20Ah) High Capacity
  • ✔ 3C Continuous Discharge Rate
  • ✔ High Energy Density
  • ✔ Low Internal Resistance
  • ✔ Long Cycle Life
  • ✔ Lightweight & Compact Design
  • ✔ Rechargeable & Maintenance-Free

🔧 Applications

  • Portable Power Stations
  • DIY Battery Packs
  • Robotics & Automation
  • Medical Devices
  • LED Lighting Systems
  • Solar Energy Storage
  • IoT & Smart Devices
  • Portable Electronics
  • Industrial Equipment
  • Backup Power Systems

✅ Advantages

  • High 20Ah Capacity
  • Stable Voltage Output
  • 3C High Discharge Performance
  • Lightweight & Compact Design
  • Long Service Life
  • Low Self-Discharge
  • Reliable & Safe Operation
  • Ideal for OEM & Custom Battery Projects

📦 Package Includes

  • 1 × BAK 1S 3.7V 20000mAh (20Ah) 1S4P 3C Lithium-Ion Rechargeable Battery Pack