Description
DMEGC 20S 72V 49500mAh (49.5Ah) 20S11P 3C Lithium-Ion Rechargeable Battery Pack
The DMEGC 20S 72V 49500mAh (49.5Ah) 20S11P 3C Lithium-Ion Rechargeable Battery Pack is a high-capacity NMC Lithium-Ion battery pack designed for electric vehicles, industrial equipment, mobility applications, backup systems, and other high-energy applications.
This pack uses DMEGC 3.7V 4500mAh lithium-ion cells arranged in a 20S11P configuration, providing a nominal voltage of 72V, capacity of 49.5Ah, and approximately 3.56kWh of nominal energy.
The 3C-rated cell configuration is suitable for applications requiring high discharge performance. The final usable current capability depends on the selected BMS, wiring, nickel/copper interconnections, connectors, thermal management, and complete pack design.
Key Features
- Brand: DMEGC
- Battery Chemistry: NMC Lithium-Ion
- Configuration: 20S11P
- Nominal Voltage: 72V
- Maximum Charging Voltage: 84V
- Capacity: 49.5Ah / 49,500mAh
- Cell Capacity: 4500mAh per cell
- Cell Rating: 3C
- Total Cells: 220 cells
- High Energy Capacity: Approx. 3.56kWh
- Rechargeable lithium-ion battery pack
- Suitable for high-power applications
- BMS protection can be configured according to application requirements
- Custom connectors, wires, dimensions and enclosure options available
20S11P Battery Configuration
The pack contains 20 series groups, with 11 cells connected in parallel in each group.
20S × 11P = 220 cells
Using 3.7V 4500mAh cells:
- Series voltage: 20 × 3.6V = 72V nominal
- Maximum charging voltage: 20 × 4.2V = 84V
- Parallel capacity: 11 × 4.5Ah = 49.5Ah
- Total cells: 20 × 11 = 220 cells
- Nominal energy: 72V × 49.5Ah = 3,564Wh
- Total energy: Approximately 3.56kWh
3C Lithium-Ion Configuration
The individual cells are specified as 3C-rated cells. The theoretical cell-level discharge capability is based on the cell manufacturer’s rating, but the actual battery pack output should not be calculated from the C-rating alone.
The final discharge capability is determined by:
- BMS continuous/peak current rating
- Cell specifications
- Nickel/copper busbar design
- Wire gauge
- Connectors
- Temperature
- Thermal management
- Pack construction
BMS Protection
A suitable 20S NMC BMS can provide protection against:
- Overcharge
- Over-discharge
- Over-current
- Short circuit
- Over-temperature
- Cell voltage imbalance
- Battery charging/discharging abnormalities
For advanced applications, the pack can be configured with a Smart BMS featuring Bluetooth, CAN, UART or RS485 communication, depending on the requirement.
Applications
The 72V 49.5Ah battery pack can be used for:
- Electric motorcycles
- High-power electric scooters
- Electric vehicles
- Industrial electric vehicles
- Electric carts
- Robotics
- AGV/AMR systems
- Portable power systems
- Industrial machinery
- Custom energy storage applications
- High-capacity DC power applications
Advantages
- High 49.5Ah capacity
- Approx. 3.56kWh energy storage
- 20S11P configuration provides high capacity
- 3C-rated cell configuration for high-power applications
- DMEGC lithium-ion cell technology
- Rechargeable and suitable for repeated use
- Custom BMS options
- Custom connector and cable options
- Suitable for OEM and customized battery pack requirements
Package Includes
- 1 × DMEGC 20S11P 72V 49.5Ah Lithium-Ion Battery Pack
- BMS as specified/configured
- Output wires and connector as specified
- Battery insulation and protective packaging
Important Charging Information
For this 20S NMC battery pack, use a compatible 84V CC/CV lithium-ion charger. Do not use a charger intended for 48V, 60V, 72V LiFePO4, or another incompatible battery chemistry.
