10.8V 14Ah 18650 3S4P 18650 Rechargeable Battery Pack
Industrial and military equipment requires more than just power—it demands unwavering reliability under extreme conditions. From emergency backup systems and field-portable devices to tactical appliances and communication gear, consistent performance is critical where failure is not an option.
The 10.8V 14Ah 3S4P 18650 Rechargeable Battery Pack delivers high energy density and robust operation across a wide temperature range. Built with 12 high-performance 3500mAh cells from Samsung or LG and equipped with an advanced smart BMS with balancing, it ensures stable voltage, extended runtime, and built-in safety in even the most challenging environments.

Key features:
- Configuration:3S4P with 12 high-quality 18650 cells
- Standard Smart BMS: Balance function with configurable protection parameters
- Customization Support: Flexible options for housing, connectors, and mounting
- Quality Cells: Uses Samsung/LG 3500mAh cells for consistent performance
| No. | Item | Specification | Note |
|---|---|---|---|
| 1 | Nominal Voltage | 10.8V | 3.6V/Cell |
| 2 | Nominal Capacity | 14Ah | @0.2C |
| 3 | Minimum Capacity | 13.6Ah | |
| 4 | Shipment Voltage | / | |
| 5 | Initial Internal Impedance | ≤200mΩ | AC 1KHZ |
| 6 | Standard Charge Voltage | 12.6V | 4.2V/Cell |
| 7 | Standard Charge Current | 2.8A | |
| 8 | Max. Charge Current | 10A | |
| 9 | Standard Discharge Current | 2.8A | |
| 10 | Max. Discharge Current | 20A | |
| 11 | Burst Discharge Current | 35A | ≤5ms |
| 12 | Discharge Cut-off Voltage | 7.5V | 2.5V/Cell |
| 13 | Cycle Life | ≥500cycles | Capacity retention ≥80% |
| 14 | Charge Temperature | 0°C~+45°C | Standard charge |
| 15 | Discharge Temperature | -20°C ~+60°C | Standard discharge |
| 16 | Storage Temperature | -20°C~45°C | ≤3 months |
| -20°C~25°C | ≤1 year | ||
| 17 | Weight | About 540 | g |
| 18 | Special Request |
10.8V 14Ah 18650 Battery Pack FAQs
What is the actual available capacity under high-load conditions?
The pack maintains ≥13.2Ah (95% of rated capacity) at 1C discharge rate. At 2C continuous discharge, usable capacity is ≥12.5Ah. Performance data available upon request.
What customization is truly available?
- Capacity: 12-15Ah (same dimensions)
- Connectors: Any standard or custom type
- Cables: Length, gauge, color
- Firmware: Protection parameters
- Labeling: Custom branding
What is the actual production lead time?
- Samples: 7-10 working days
- Bulk orders: 15-20 working days (100-500 units)
- Cables: Length, gauge, color
- Custom projects: +5-7 working days
What is the real-world temperature operating range?
- Standard range: -20°C to 60°C (discharge)
- Charging temperature: 0°C to 45°C
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
We stand by our products and guarantee you’ll be happy with your purchase.

