18650 14.8V 8800mAh Low Temperature Battery Pack
Product Number:
04BQ118-29
Nominal voltage:
14.8V
Nominal capacity:
8800mAh
Battery Configuration:
18650-4S4P
Dimension:
85 × 85 × 74 mm
Application:
Lighting Equipment
Low temperature performance, wide temperature range, high capacity endurance
Product Overview
This is a 14.8V low-temperature lithium battery for lighting equipment, used in outdoor emergency lighting and industrial lighting scenarios. It supports long continuous operation in extreme cold conditions, delivering stable output, wide temperature adaptability, and reliable power performance.
Electrical Specifications
| Attribute | Parameter |
|---|---|
| Product Number | 04BQ118-29 |
| Cell Model | 18650/3.7V/2200mAh |
| Battery Configuration | 18650-4S4P |
| Nominal Voltage | 14.8V |
| Nominal Capacity | 8800mAh |
| Rated Energy | 130.24Wh |
| Charging Voltage | 16.8V |
| Discharge Cut-off Voltage | 10V |
| Standard Charging Current | ≤4.4A |
| Standard Discharge Current | 1.8A |
| Max Continuous Discharge Current | 4.4A |
| Internal Resistance | ≤200mΩ |
Mechanical & Environmental
| Attribute | Parameter |
|---|---|
| Charging Temperature | 0～45℃ |
| Discharge Temperature | -40～60℃ |
| Storage Temperature | -20～35℃ |
| Dimensions | 85 × 85 × 74 mm (Max) |
| Weight | 430g |
| Battery Case | Pouch Cell |
| Protection System | Short Circuit / Overcharge / Over-discharge / Overcurrent Protection |
Application Background
This battery solution is designed for lighting equipment, suitable for outdoor emergency lighting, industrial lighting, and low-temperature operation scenarios.
The device requires long-duration stable power supply in low-temperature and harsh environments, maintaining consistent performance during high-brightness output and power management, with high demands on low-temperature performance, endurance, and safety.
Project Challenges
Requires continuous lighting operation of 6–12 hours or more
Stable discharge performance required at -40℃ ultra-low temperature
High-brightness mode peak current up to 4.4A
Outdoor multi-environment use requires high reliability and safety
Customized Battery Solution
14.8V 4S4P configuration for stable and continuous power supply in lighting systems
Wide temperature design (-40～60℃) for enhanced extreme cold adaptability
Multi-protection system (overcharge/overdischarge/overcurrent/short circuit protection) ensuring safe operation
Pouch cell structure for lightweight design and flexible system integration
Application Results
Lighting runtime in low-temperature environments extended to 6–12 hours
Discharge stability in extreme cold improved by approx. 20%+
Significantly enhanced outdoor reliability with reduced failure rate
Compatible with multiple lighting device types, improving overall versatility
We support flexible customization based on your project requirements, including:
- Voltage range: 3.2V – 72V
- Capacity range: 100mAh – 100Ah
- Electrical performance design: Charge/discharge parameters, C-rate, internal resistance, temperature performance
- Mechanical design: Appearance, dimensions, housing material, and integrated structural engineering
- BMS design: Battery protection, cell balancing, and communication protocols (SMBus / I2C / UART)
Get a Custom Battery Solution
Tell us about your project needs. Our engineers will provide a tailored battery solution and quotation within 24 hours.
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