Description
BAK 2S 7.4V 30000mAh 2S6P 3C Lithium-Ion Battery Pack | Rechargeable NMC Battery
The BAK 2S 7.4V 30000mAh 2S6P Lithium-Ion Battery Pack is a high-capacity rechargeable NMC battery pack designed for applications requiring a compact 7.4V power source with high energy capacity and high discharge capability.
This battery uses 12 × 21700 lithium-ion cells arranged in a 2S6P configuration. With 6 cells connected in parallel per series group, the pack provides approximately 7.2–7.4V nominal voltage and 30Ah capacity when built using 3.6/3.7V 5000mAh cells. A 3C-rated cell can provide high current capability, subject to the actual cell specification, BMS rating, wiring and operating conditions. BAK 21700 cells in this capacity class are typically around 3.6V nominal and 5000mAh, with 21700 dimensions around 21.4 × 70.75 mm.
Key Features
- BAK 21700 lithium-ion cells
- NMC lithium-ion chemistry
- 2S6P configuration
- 7.4V nominal-class battery pack
- 30Ah / 30,000mAh capacity
- Approx. 216–222Wh energy, depending on cell nominal voltage
- 3C high-discharge cell configuration
- Rechargeable battery pack
- 2S BMS protection available
- Custom connector and cable options
- Suitable for portable and high-current equipment
- Custom dimensions and enclosure available
2S6P Battery Configuration
2S6P means:
- 2S: 2 groups connected in series → increases voltage.
- 6P: 6 cells connected in parallel in each group → increases capacity.
- Total cells = 2 × 6 = 12 cells
- 6 × 5Ah = 30Ah
- 2 × 3.6V = 7.2V nominal
The pack is commonly referred to as a 7.4V battery when using the typical 3.7V nominal lithium-ion convention.
Applications
This 7.4V 30Ah battery pack can be customized for:
- Robotics and robotic equipment
- Portable electronic equipment
- CCTV and security equipment
- Industrial instruments
- Medical and electronic equipment
- Portable power systems
- RC and hobby applications
- Backup power systems
- Motorized equipment
- Communication equipment
Custom OEM equipment
Custom Battery Pack Options
Lion Battery can customize the pack according to your application requirements, including:
- BMS current rating
- Connector type
- Cable length and wire gauge
- Pack dimensions
- Battery enclosure
- Mounting brackets
- Charging connector
- Protection configuration
- Label and branding
- OEM/private-label requirements
Important: A 3C cell rating does not automatically mean the finished battery should be operated continuously at 90A. The allowable pack current must be determined from the actual cell model, BMS, interconnects, connectors, thermal conditions and application requirements.
