DMEGC 20S 72V 49500mAh (49.5Ah) 20S11P 3C Lithium-Ion Rechargeable Battery Pack

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.