14.4V 6800mAh 4S2P 18650 Battery Pack with IEC62133 Certification
Meet the demanding runtime and safety requirements of professional-grade equipment. CMB designed this 14.4V 6800mAh 4S2P battery pack to support sustained performance, scalable production, and compliance with IEC62133 safety requirements. It is the ideal choice for power-intensive applications like professional lighting, heavy-duty tools, and backup systems where capacity, safety, and compliance are critical.

Key Specifications:
- Configuration: 4S2P using 18650 cells
- Nominal Voltage: 14.4V
- Nominal Capacity: 6.8Ah
- Key Certifications:IEC62133
- Max Continuous Current: 3A (Charge & Discharge)
- Cycle Life: ≥400 cycles (≥70% capacity retention)
| No. | Item | Parameter | Remark |
|---|---|---|---|
| 1 | Nominal Voltage | 14.4V | 3.6V/Cell |
| 2 | Nominal Capacity | 6.8Ah | @0.2C |
| 3 | Minimum Capacity | 6.67Ah | / |
| 4 | Initial Internal Impedance | ≤150mΩ | AC 1KHZ |
| 5 | Standard Charge Voltage | 16.8V | 4.2V/Cell |
| 6 | Standard Charge Current | 1.36A | @0.2C |
| 7 | Max. Charge Current | 3A | |
| 8 | Standard Discharge Current | 1.36A | @0.2C |
| 9 | Max. Discharge Current | 3A | / |
| 10 | Brust Discharge Current | 8-12V | ≤300ms |
| 11 | Discharge Cut-off Voltage | 10.8V | 2.7V/Cell |
| 12 | Cycle Life | ≥400cycles | Retention: ≥70% |
| 13 | Charge Temperature | 5°C~+40°C | Standard Charge |
| 14 | Discharge Temperature | -5°C~+50°C | Standard Discharge |
| 15 | Storage Temperature | -20°C~ 45°C | ≤30 Days |
| -20°C~ 23°C | ≤1 Year | ||
| 16 | Weight | About 0.45kg | / |
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14.4V 6800mAh 18650 Battery Pack FAQs
What is the realistic minimum capacity I can expect?
The guaranteed minimum capacity is 6.67Ah, ensuring consistent performance across all units.
Is this 14.4v 18650 battery pack suitable for devices with high inrush currents?
With a maximum discharge current of 3A, it can handle moderate power surges, suitable for many professional tools and devices.
Why is IEC62133 certification important for this type of battery pack?
IEC62133 is often required for regulated markets and professional equipment. It reduces approval risks and simplifies customer audits.
How does CMB ensure consistency between samples and mass production?
Design validation, component locking, and certification are completed before scaling. This ensures production units match tested samples.
What does the customization process typically include?
It includes requirement review, electrical and structural design, prototype validation, certification testing, and controlled transition to mass production.
Tailored Customization
Our design team can create custom battery designs for just about any device or machine.
Timely Delivery
Our efficient production and distribution process gets your product delivered in a timely manner.
Quality Guarantee
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