7.4V Battery Pack for Drones
Typical Cell Configuration (2S LiPo / 2-Cell Lithium Packs)
A standard 7.4V drone battery consists of two lithium-ion or lithium-polymer cells. They are arranged in a “2S” configuration, which means two series. Each cell contributes 3.7V nominally, for a combined 7.4V pack. These cells are often protected by a Battery Management System (BMS). The system is used to ensure safe charging, discharging, and voltage balancing.
Use Cases in Professional & Commercial Drones
This 7.4V fits perfectly within lightweight UAVs, aerial photography drones, and surveying platforms. Many OEMs select 7.4V packs for drones where endurance and efficiency are more important than sheer power. It’s also ideal for drones that operate in controlled environments—such as indoor inspections, agricultural scouting, or mapping applications—where size and maneuverability take priority.
Where 7.4V Packs Shine in Drone Systems?
Professional photographers and videographers rely on lightweight 7.4V LiPo batteries for stable power and minimal interference. These packs allow for consistent voltage output, ensuring smooth camera operation and longer shooting sessions.
Industrial inspection drones—used in power line, wind turbine, and building maintenance—often require mid-voltage packs to balance range and endurance. The 7.4V setup provides enough energy for extended flight paths while keeping drone payloads light.
7.4V battery packs can also power short-distance delivery drones carrying light parcels or documents. Their compact design also supports modular swapping for quick turnaround operations.
Mapping drones need consistent power supply for stable GPS and imaging systems. 7.4V packs with high energy capacity enable long-duration missions without overheating or voltage sag.
Comparison: 7.4V Li-ion & Li-Po Battery Pack
Both Li-ion and LiPo 7.4V battery packs are widely used in UAVs, but the right choice depends on the mission profile. Li-ion 7.4V packs suit commercial and industrial UAVs that need long endurance and stable power. LiPo 7.4V packs fit racing or high-thrust drones requiring fast power output and lightweight design.
Quote for PKCell 7.4V Li-ion Battery Pack
Quote for PKCell 7.4V Li-Po Battery Pack
What are the Advantages of a Well-Designed 7.4V Pack?
- Light Weight: High-density lithium cells allow for maximum energy with minimal weight.This can increase total flight time and reduce strain on motors.
- Voltage stability: With stable voltage, the control responses smoothly and fewer in-flight fluctuations occur.
- Flexibility for Design: Standardized 7.4V modules can be swapped in seconds, enabling quick redeployment for continuous operations.
- Cost Efficiency: From an OEM perspective, 7.4V packs are cost-efficient to produce and maintain. Their compatibility across multiple drone types simplifies inventory management and lowers replacement expenses.
Comparison: 7.4V vs. Other Drone Battery Voltages
7.4V packs are easier to integrate, safer to manage, and ideal for lightweight drones. Higher voltages provide extra power but require advanced ESCs and thermal management.
How to Select the Right 7.4V Battery Pack for Your Drone Project?
- Matching Capacity & Discharge Profile to Motor and Flight Mission: If your drone performs high-thrust maneuvers or carries payloads, you’ll need a pack with both high capacity and high C-rate. For surveillance or mapping drones, lower discharge rates and lighter packs improve endurance.
- Evaluating Ambient & Operational Conditions: Lithium cells perform differently across temperature ranges. In cold climates, select packs with enhanced low-temperature discharge performance; in hot regions, ensure proper heat dissipation and protection.
- Safety Certifications and Compliance : For commercial applications, compliance isn’t optional. Always check for UN38.3, IEC62133, and MSDS documentation before deployment.
- Customization: OEMs often require custom connectors, form factors, or BMS calibration. A reliable supplier can tailor pack dimensions and parameters to perfectly fit your drone’s internal structure.
- Supplier Criteria – Quality Assurance, Consistency, After-Sales Support: Partner with suppliers who offer consistent cell sourcing, testing reports, and traceability like PKCell. After-sales technical support can make a major difference during integration and maintenance phases.
FAQs About 7.4V Battery Packs for Drones
Q1: What is a 7.4V battery pack and why is it used in drones?
A 7.4V pack is a 2-cell lithium battery (2S configuration) that provides balanced voltage and power efficiency for small and mid-sized drones. It’s ideal for UAVs that prioritize flight stability, compact design, and moderate thrust performance.
Q2: How do I choose the capacity (mAh) for my drone’s 7.4V battery?
Capacity depends on flight time goals and payload weight. Every additional 1000mAh adds 5–10 minutes of flight, depending on motor efficiency and load. For professional drones, 3000–6000mAh is typical.
Q3: What C-rate is suitable for UAV applications?
Most UAVs perform best with 20C–50C discharge ratings. Choose a higher C-rate if your drone has powerful motors or frequently changes altitude.
Q4: Are 7.4V LiPo packs safe for long-term drone operations?
Yes—when managed with proper BMS and protection circuits. High-quality 7.4V packs from trusted suppliers undergo UN38.3 testing and include cell balancing, overcharge, and temperature protections for long-term reliability.
Q5: Can I use 7.4V battery packs in high-altitude or cold-weather drones?
Yes. You can select cells with extended temperature tolerance (−20°C to +60°C). PKCell offers tailored solutions for these tough environments.
Q6: Do you offer custom 7.4V battery packs for OEM drone manufacturers?
Yes. PKCell provides OEM 7.4V battery solutions, including custom cell selection, BMS configuration, and connector design. Every pack is engineered for stable performance, scalability, and compliance with international standards.
Post time: Oct-17-2025
