Drone Battery Pack - 51.8V 27000mAh Semi-Solid State UAV Battery
The OID9787187SS-27000mAh-5C-51.8V Drone Battery Pack is a high-performance semi-solid state lithium polymer battery designed for professional UAV platforms requiring high energy density, stable discharge capability, and long endurance.
Built with a 14S configuration and advanced semi-solid electrolyte technology, this battery provides excellent safety, superior cycle performance, and reliable operation in demanding environments such as industrial inspection, mapping drones, surveillance UAVs, and heavy-lift drone systems.
The pack combines high capacity (27Ah) with high energy density ≥255Wh/kg, enabling longer flight times while maintaining stable output for high-power propulsion systems.
Key Advantages
High Energy Density for Long Flight Time
The battery delivers ≥255Wh/kg gravimetric energy density, enabling extended UAV endurance while keeping overall system weight optimized.
Semi-Solid State Lithium Technology
Compared with conventional lithium-polymer packs, semi-solid state chemistry offers:
- Higher safety margin
- Improved thermal stability
- Reduced risk of electrolyte leakage
- Enhanced cycle durability
High Power Discharge Capability
Designed for demanding UAV power systems with continuous discharge capability and high burst output for take-off and maneuvering.
Fast Charging Capability
Supports multiple charging modes to reduce turnaround time including standard charge, fast charge, and super-fast charge (up to 2C).
Wide Operating Temperature
Reliable performance in various environments, suitable for professional drone missions.
Technical Specifications
| Model |
OID9787187SS-27000-51.8V |
| Nominal Capacity |
27000mAh |
| Minimum Capacity |
26000mAh |
| Configuration |
14S1P |
| Nominal Voltage |
51.8V |
| Full Charge Voltage |
58.8V |
| Cut-off Voltage |
49.2V |
| Standard Charge |
0.5C CC/CV to 58.8V |
| Fast Charge |
1C CC/CV |
| Super Fast Charge |
2C CC/CV |
| Standard Discharge |
0.5C (13.5A) |
| Rate Discharge |
5C ≤30s |
| Peak Discharge |
10C ≤3s |
| Internal Resistance |
≤14mΩ |
| Energy Density |
≥255Wh/kg |
| Dimensions |
205 × 89 × 141.5 mm |
| Weight |
~5.42 kg |
Environmental Performance
| Parameter |
Condition |
Capacity Retention |
| Temperature Performance |
40°C |
≥90% |
| 25°C |
98% |
| 0°C |
≥85% |
| -10°C |
≥70% |
Operating temperature:
Charging: 0°C ~ 45°C
Discharging: -20°C ~ 60°C
Cycle Life
Under standard conditions (charge: 0.5C CC/CV to full, cut-off 0.05C; discharge: 0.5C to 42.0V), the battery achieves ≥300 cycles with ≥80% capacity retention.
This ensures long operational life for UAV fleets and industrial drone applications.
Mechanical Reliability Tests
The battery pack passes strict mechanical testing to ensure safety and durability.
Vibration Test
- Frequency range: 10Hz - 55Hz
- Amplitude: 1.6mm
- Test duration: 30 minutes per axis (X/Y/Z)
Result: No explosion, no fire, no leakage
Drop Test
- Drop height: 1.2m
- Surface: 30mm wooden board
- Repeated 3 times
Result: No explosion, no fire, no leakage
Storage & Transportation Requirements
Recommended storage conditions:
| Temperature |
0°C - 35°C |
| Humidity |
≤75% RH |
| Long-term storage voltage |
49.2V - 50.4V (40-50% SOC) |
Important notes:
- Avoid storing above 50.4V for more than 7 days
- Recharge the battery every 3 months to maintain performance
Safety Guidelines
Dangers
- Do not expose the battery to open flames or extreme heat
- Do not puncture or cut the battery
- Never disassemble the battery pack
Warnings
- Use only compatible chargers
- Do not charge in wet or humid environments
- Stop using the battery if swelling, deformation, or leakage occurs
Precautions
- Fully charge before first use
- Ensure proper ventilation during charging
- Store in a cool and dry place away from sunlight
Applications
This UAV battery pack is suitable for:
- Industrial inspection drones
- Mapping and surveying UAVs
- Security and surveillance drones
- Agricultural UAV platforms
- Heavy-lift drone systems
Manufacturer
Shenzhen Jianheng Technology Co., Ltd.
Specializing in advanced lithium battery cells and customized battery pack solutions for UAV, energy storage, robotics, and industrial equipment.
