Description
DMEGC 20S 72V 18000mAh (18Ah) 20S4P 3C Lithium-Ion Rechargeable Battery Pack
The DMEGC 20S 72V 18000mAh (18Ah) 20S4P 3C Lithium-Ion Rechargeable Battery Pack is a high-voltage NMC Lithium-Ion battery pack designed for electric vehicles, electric scooters, e-bikes, motorcycles, robotics, industrial equipment, and other high-voltage applications.
Built in a 20S4P configuration, the battery contains 80 cells, arranged as 20 series groups with 4 cells connected in parallel in each group. Using 4500mAh DMEGC cells, the pack provides 72V nominal voltage and 18Ah capacity, delivering approximately 1.296kWh of nominal energy.
Key Features
- DMEGC Lithium-Ion Cells
- NMC Lithium-Ion Chemistry
- 20S4P Configuration
- 72V Nominal Voltage
- 18000mAh / 18Ah Capacity
- 80 Cells in 20S4P configuration
- 3C Cell Configuration
- Approximately 1.296kWh Nominal Energy
- Rechargeable Battery Pack
- High-Voltage Battery Design
- Suitable for EV & E-Mobility Applications
- BMS Protection Available
- Custom Connector & Enclosure Options
- Suitable for OEM & Custom Battery Manufacturing
20S4P Battery Configuration
The battery pack consists of:
20 Series × 4 Parallel = 80 Cells
Each parallel group:
4 × 4500mAh = 18000mAh (18Ah)
Nominal Voltage
20 × 3.6V = 72V
Maximum Charging Voltage
20 × 4.2V = 84V
Nominal Energy
72V × 18Ah = 1,296Wh
Therefore, the battery provides approximately 1.296kWh of nominal energy.
3C Lithium-Ion Configuration
The 3C specification refers to the discharge capability of the selected DMEGC cells. The 4P configuration increases the current capability of each series group compared with a single cell.
The actual continuous and peak current rating of the finished battery should be determined according to the cell specifications, BMS current rating, nickel/busbar construction, wiring, connectors, thermal management, and vehicle/controller requirements.
BMS Protection
A suitable 20S NMC BMS can provide:
- Overcharge Protection
- Over-Discharge Protection
- Over-Current Protection
- Short-Circuit Protection
- Cell Voltage Monitoring
- Cell Balancing
- Temperature Monitoring
- Charging & Discharging Protection
For this 72V-class battery, the BMS and charger should be specifically selected for a 20S NMC configuration. The appropriate charger output is 84V.
Applications
The DMEGC 20S 72V 18Ah Lithium-Ion Battery Pack is suitable for:
- 72V E-Bikes
- Electric Scooters
- Electric Motorcycles
- Electric Vehicles
- High-Voltage E-Mobility
- Robotics
- AGV Systems
- Industrial Equipment
- Portable Power Systems
- Custom EV Battery Systems
- OEM Battery Applications
Advantages
- 18Ah high-voltage battery design
- 20S4P configuration
- 80-cell battery configuration
- Approximately 1.296kWh nominal energy
- 72V nominal / 84V fully charged
- DMEGC NMC lithium-ion cell configuration
- Suitable for high-voltage applications
- Multiple BMS options
- Custom wiring and connector options
- Suitable for OEM and bulk battery manufacturing
Package Includes
1 × DMEGC 20S 72V 18000mAh (18Ah) 20S4P 3C Lithium-Ion Rechargeable Battery Pack
