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High-Capacity 7.4V 4400mAh 18650 Battery Pack 18650-2P2S
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High-Capacity 7.4V 4400mAh 18650 Battery Pack 18650-2P2S
Seeking a robust power solution for portable electronics? Ufine’s 7.4V 4400mAh Li-ion 18650 Battery Pack 18650-2P2S combines high energy density and reliable discharge stability. With a total capacity of 4400mAh and nominal voltage of 7.4V, this pack is ideal for drones, medical instruments, portable tools, and other devices requiring dependable mid-to-high power output without compromising form factor.
Performance Highlights of 7.4V 4400mAh 18650 Battery Pack
Explore discharge reliability, cycle endurance, temperature tolerance, and self-discharge stability of the 18650-2P2S pack.
- Discharge Stability
- Cycle Endurance
- Temp Performance
- Shelf Retention
Stable Mid-to-High Power Delivery
The 18650-2P2S battery pack maintains consistent voltage during continuous 0.5C loads and can support short bursts up to 1C, making it perfect for drones and portable electronics.
- Nominal voltage: 7.4V, cutoff at 6V
- Supports 0.5C continuous load
- Peak 1C short-term discharge possible
Extended Cycle Life
Engineered for repeated charge-discharge cycles, this 18650 pack retains high capacity over time, suitable for applications requiring frequent recharging.
- 400–600 cycles at 0.5C
- Minimal capacity attenuation across lifespan
- Reliable for portable tools, drones, and IoT devices
Wide Temperature Adaptability
Designed to handle varying environmental conditions, this pack ensures voltage stability and safety even in outdoor or variable-climate deployments.
- Operating range: -10°C to 60°C
- Optional low-temp version: down to -20°C
- High-temp customization: up to 65°C
Optimized Shelf Retention
The 18650-2P2S pack features low self-discharge, keeping the battery ready for intermittent use over months without significant capacity loss.
- Monthly self-discharge under 25°C is minimal
- Perfect for devices with irregular usage patterns
- Maintains voltage stability during storage
Optimized for Long-Lasting 7.4V Performance
The 18650-2P2S pack delivers consistent power for mid-to-high load devices, ensuring smooth operation and long-term reliability.
Why This 18650-2P2S Pack Stands Out
Designed for applications that demand both high energy and stable voltage, this pack excels in drones, portable tools, medical devices, and IoT equipment. Its 2P2S arrangement maximizes capacity while keeping internal resistance low.
- 4400mAh high-capacity cells for extended runtime
- Stable 7.4V output under continuous mid-power load
- Low self-heating and minimal voltage sag during bursts
- 2P2S configuration optimized for compact form factors
- Reliable performance across 400–600 charge cycles
Premium 18650 Pack Quality You Can Trust
Every 18650-2P2S battery undergoes strict production standards to ensure stable 7.4V output and reliable performance for mid-to-high power applications.
View Production Details 
Ufine 18650 Pack VS Generic Alternatives
See why the 18650-2P2S pack outperforms common battery packs.
Ufine Battery
- Consistent 7.4V voltage under mid-power loads
- Minimal swelling, high dimensional stability
- Custom samples ready in 3 days
- Strong cycle retention with uniform IR
- Dedicated after-sales support
- Compact 2P2S 18650 pack form factor
- Connector options available
- Operating Temp: -10°C ~ 60°C (Customizable)
Other Battery
- Voltage fluctuation under moderate load
- Inconsistent pack size and assembly
- Higher IR variation
- No customization options
Customization Options and Process
Tailored 7.4V Li-ion 18650 solutions for diverse applications.
- Custom 18650 pack arrangements (1P-4S) and sizes
- Capacity selection from 500mAh to 10Ah
- Temperature options: -20°C ~ 65°C
- Connector options: JST / Molex / Hirose / TE / etc.
- PCM/protection circuit integration
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01Define pack configuration and device dimensions
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02Set current, capacity, and runtime specifications
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03Select temperature and cycle performance parameters
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04Choose connectors and wiring style
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05Integrate PCM or custom features as required
Battery Specification
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1. Mechanical Characteristics
Cell 18650-2P2S PCM Yes NTC No Weight appr. 200g Configuration 2S2P -
2. Electrical Specification
Capacity 4400mAh Nominal Voltage 7.4V Energy 32.56Wh Internal Resistance less than 150mΩ Max. Charge Voltage 8.4V Discharge Cut Off 5.5V Max. Charge Current 4400mA Max. Discharge Current 4400mA Standard Charge Current 880mA Standard Discharge Current 4400mA Charging Temperature 0℃ to 45℃ Discharging Temperature -20℃ to 60℃ Storage Temp.Range 1 year at -20℃ to +25℃ 3 mos. at -20℃ to +45℃ 1 mo. at -20℃ to +60℃ Cycle life 100 cycles ≥92% 300 cycles ≥88% 500 cycles ≥80% -
3. Cell protection
Overcharge Detection 4.28V ±50mV (80 to 200msec delay, release 4.08V ±50mV) Overdischarge Detection 2.4V ±100mV (40 to 120msec. delay, release 3.0V ±100mV) Overcurrent Detection 2.5A to 4.5A (5 to 10msec. delay) Short protection Yes
The 7.4V 4400mAh 18650 Battery Pack 18650-2P2S from Ufine Battery delivers high-capacity and stable energy for portable electronics, drones, medical instruments, and IoT devices. Its robust 2P2S configuration ensures consistent mid-to-high power output while maintaining a compact form factor.
Explore how this li ion 18650 battery 7.4 v 4400mah can support your projects, extend device runtime, and improve operational reliability.
Part 1. Applications of the 7.4V 4400mAh 18650 Battery Pack
The battery lithium 7.4 v 4400mah is designed to empower devices across multiple sectors:
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Drones and UAVs – Provides stable voltage and extended flight duration for professional and hobbyist use.
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Medical instruments – Keeps portable diagnostic and monitoring equipment operational during critical tasks.
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Portable tools and handheld devices – Ensures reliable energy supply for scanners, meters, and controllers without frequent recharging.
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IoT systems – Fits compact enclosures while supporting continuous sensor operation and wireless communication.
Looking for a battery that matches your device requirements? Consult Ufine Battery for tailored 7.4v 4400mah lithium ion battery solutions.
Part 2. How to maximize the lifespan of your 7.4V 4400mAh lithium battery?
Proper maintenance of your 7.4v 4400mah lithium battery is key to long-term performance:
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Store in a cool, dry environment to prevent capacity degradation and preserve charge cycles.
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Avoid deep discharge by recharging before reaching critically low levels.
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Use manufacturer-recommended chargers to ensure safe and balanced charging of the 2P2S pack.
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Inspect connectors and wiring periodically to maintain consistent power delivery.
Part 3. Environmental and operational advantages of the 7.4v 4400mah battery
The 7.4v 4400mah battery is engineered for both reliability and efficiency in diverse environments:
With low self-discharge, devices can remain standby-ready for extended periods, reducing energy waste. Its durable design and high-quality 18650 cells minimize the need for frequent replacements, aligning with sustainable practices.
Part 4. Insights from users of the 18650 battery 7.4 v 4400mah
Professionals across industries trust the 18650 battery 7.4 v for uninterrupted performance:
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Drone operators report consistent mid-power output and reliable battery life, even in extended missions.
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Medical technicians appreciate the pack's stable voltage for critical monitoring devices.
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Field engineers rely on its compact design and 2P2S configuration to power handheld instruments in challenging conditions.
Part 5. Customization options with Ufine 7.4V 4400mAh lithium ion battery
Ufine Battery provides flexibility for 7.4 v 4400mah lithium battery projects:
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Custom pack sizes and shapes to integrate seamlessly with your device enclosure.
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Adjustable voltage and capacity to align precisely with operational needs.
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Connector selection for rapid integration into drones, tools, or IoT systems.
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Environmental adaptations for high and low temperature performance, ensuring reliability in extreme conditions.
Begin your project today by requesting a consultation for your 7.4v 4400mah battery pack and achieve consistent, high-capacity performance.
FAQs
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What makes the 7.4V 4400mAh 18650-2P2S battery pack different from standard 18650 single cells?
The 18650-2P2S pack combines four 18650 cells in a 2-series, 2-parallel configuration, providing double the voltage and double the capacity of a single 18650 cell. This ensures stable 7.4V output and extended runtime for devices requiring higher power. -
Can this 7.4V 4400mAh battery replace other 7.4V lithium-ion battery packs?
Yes, as long as your device supports a 7.4V input and the pack dimensions fit your enclosure. The connector type should also be compatible to ensure safe and reliable operation. -
How long does it take to charge the 7.4V 4400mAh 18650 battery pack fully?
Using a standard 7.4V compatible charger, it typically takes 4–5 hours for a full charge. Fast charging may be possible with appropriate chargers, but it is recommended to follow Ufine's guidelines to maintain battery health and longevity. -
What types of devices benefit most from this 7.4V 4400mAh battery pack?
This battery pack is ideal for drones, handheld medical instruments, portable power tools, robotics, and IoT devices that require a compact pack with high-capacity and stable 7.4V output over long operating periods. -
Can the 7.4V 4400mAh 18650 battery pack be customized for specific project needs?
Absolutely. Ufine offers OEM/ODM customization, including tailored pack dimensions, connector types, wire lengths, PCM/protection integration, and cell arrangement, allowing you to optimize the pack for your device or prototype. -
What safety features are included in this 18650-2P2S battery pack?
The pack includes integrated PCM protection to prevent overcharge, over-discharge, and short circuits. High-quality cells and balanced wiring ensure thermal stability and reliable performance under standard operating conditions.
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