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





