Power Pack 14.8V 18000mAh 4S9P 1C BMS 20A Lithium-Ion Rechargeable NMC Battery Pack

Description

Power Pack 14.8V 18000mAh 4S9P 1C BMS 20A Lithium-Ion Rechargeable NMC Battery Pack

The Power Pack 14.8V 18000mAh 4S9P 1C BMS 20A Lithium-Ion Rechargeable NMC Battery Pack is a high-capacity rechargeable battery pack designed for portable electronics, robotics, industrial equipment, backup power systems, and other applications requiring a reliable 14.8V power source.

This battery pack uses 18650 NMC lithium-ion cells arranged in a 4S9P configuration, providing 14.8V nominal voltage and 18000mAh (18Ah) capacity. The integrated 4S 20A BMS helps protect the battery during charging and discharging.

4S9P Configuration

The battery pack uses a 4S9P configuration with a total of 36 cells:

• 4S = 4 cell groups connected in series
• 9P = 9 cells connected in parallel in each group
• Total cells = 4 × 9 = 36 cells
• Cell capacity = 2000mAh
• Parallel group capacity = 2000mAh × 9 = 18000mAh
• Nominal pack voltage = 3.7V × 4 = 14.8V
• Maximum charge voltage = 4.2V × 4 = 16.8V
• Energy capacity = 14.8V × 18Ah = 266.4Wh

The 4S configuration provides the 14.8V nominal voltage, while the 9P configuration increases the capacity to 18Ah.

4S 20A BMS Protection

The battery pack is equipped with a 4S 20A BMS to help protect the battery cells during charging and discharging.

Typical protection functions include:

• Overcharge protection
• Over-discharge protection
• Over-current protection
• Short-circuit protection
• Cell voltage monitoring
• Charging protection
• Discharging protection

The actual continuous current capability depends on the selected cells, BMS design, wiring, connectors and overall pack construction.

Charging

Use a dedicated 16.8V NMC/Li-ion charger for this 4S battery pack.

Charging specifications:

• Nominal battery voltage: 14.8V
• Maximum charge voltage: 16.8V
• Recommended charger: 16.8V Li-ion charger
• Battery chemistry: NMC Lithium-Ion

Do not use a 14.6V LiFePO4 charger for this NMC battery pack.

Applications

This 14.8V 18Ah battery pack can be suitable for:

• Portable electronic equipment
• Robotics
• Industrial equipment
• CCTV and security systems
• LED lighting
• IoT devices
• Communication equipment
• Measuring instruments
• Portable power systems
• DIY electronics
• Backup power applications
• Custom electronic equipment
• Small electric equipment

Key Features

• 14.8V nominal voltage
• 18000mAh / 18Ah capacity
• 4S9P configuration
• 36 × 18650 cells
• NMC lithium-ion chemistry
• 1C cell discharge rating
• 4S 20A BMS
• Approx. 266.4Wh energy capacity
• Rechargeable battery design
• High-capacity configuration
• Custom connector and wire options available