Description
The Power Pack 11.1V 24000mAh 3S12P 1C BMS 20A Lithium-Ion Rechargeable NMC Battery Pack is a high-capacity rechargeable battery pack designed for applications requiring 11.1V power with extended runtime.
Built using 18650 NMC lithium-ion cells in a 3S12P configuration, this battery pack provides a nominal voltage of 11.1V and a capacity of 24000mAh (24Ah). It offers approximately 266.4Wh of energy, making it suitable for portable electronics, robotics, industrial equipment, backup systems, CCTV, IoT devices and custom applications.
The pack includes a 3S 20A BMS (Battery Management System) to help provide protection against overcharge, over-discharge, over-current and short-circuit conditions.
Battery Configuration
The battery pack uses a 3S12P configuration:
- 3S = 3 cell groups connected in series
- 12P = 12 cells connected in parallel in each group
- Total cells: 3 × 12 = 36 × 18650 cells
- Cell capacity: 2000mAh
- Pack capacity: 12 × 2000mAh = 24000mAh (24Ah)
- Nominal voltage: 3 × 3.7V = 11.1V
- Maximum charge voltage: 3 × 4.2V = 12.6V
BMS Protection
The integrated 3S 20A BMS helps protect the battery pack from:
- Overcharge
- Over-discharge
- Over-current
- Short circuit
- Cell voltage abnormalities
- Unsafe operating conditions
Note: The 20A value refers to the BMS rating. The actual continuous output capability of the complete battery depends on the cells, BMS design, wiring, connectors, temperature and overall pack construction.
Charging
Use a dedicated 12.6V Li-ion/NMC charger for this battery pack.
| Charging Parameter | Details |
|---|---|
| Nominal Pack Voltage | 11.1V |
| Maximum Charge Voltage | 12.6V |
| Recommended Charger | 12.6V Li-ion/NMC Charger |
| Configuration | 3S |
Always check charger polarity and connector compatibility before charging.
Key Features
- 11.1V nominal voltage
- 24000mAh / 24Ah capacity
- 3S12P configuration
- 36 × 18650 NMC cells
- 3S 20A BMS
- Approx. 266.4Wh energy capacity
- Rechargeable lithium-ion battery
- High-capacity design for extended runtime
- Custom connector options
- Custom wire length available
- Suitable for OEM and bulk requirements
Applications
This 11.1V 24Ah battery pack is suitable for:
- Portable electronic equipment
- Robotics
- CCTV and security systems
- IoT devices
- Industrial electronics
- Portable instruments
- GPS and tracking equipment
- Communication equipment
- Backup power systems
- LED lighting systems
- DIY electronics
- Custom electronic products
Custom Lithium Battery Pack Manufacturing
Lion Battery manufactures custom lithium-ion battery packs according to application requirements.
Customization options include:
- Custom voltage and capacity
- 18650 / 21700 cell selection
- NMC or LiFePO₄ chemistry
- Custom BMS rating
- Custom dimensions
- Custom connectors
- Custom wire length
- PVC heat-shrink packaging
- Battery enclosure
- OEM/private-label battery packs
- Prototype and bulk manufacturing





