Custom 27000mAh 5C Continuous Discharge UAV Battery Pack with Semi-Solid State Li-Po Technology
- Ultra-high capacity 27000mAh for extended flight time
- 5C continuous discharge (135A) - powers demanding propulsion systems
- Semi-solid state electrolyte - enhanced safety and cycle life
- Customizable for custom drone battery pack projects
- Meets industrial standards for vibration, drop, and thermal performance
Technical Specifications
| Parameter | Value |
|---|---|
| Nominal Capacity | 27000mAh @ 0.5C discharge |
| Minimum Capacity | 26000mAh @ 0.5C discharge |
| Nominal Voltage | 3.7V |
| Full Charge Voltage | 4.2V |
| Discharge Cut‑off Voltage | 2.8V |
| Standard Charge | 0.5C CC/CV to 4.2V, cut‑off ≤0.05C @25°C |
| Fast Charge | 1C CC/CV to 4.2V, cut‑off ≤0.05C @25°C |
| Super Fast Charge | 2C CC/CV to 4.2V, cut‑off ≤0.05C @25°C |
| Standard Discharge Current | 0.5C (13.5A) |
| Continuous Discharge Current | 5C (135A) |
| Pulse Discharge Current | 15C (≤3s) |
| AC Internal Resistance | ≤1.6mΩ |
| Energy Density (Gravimetric) | ≥275Wh/kg (0.5C/0.5C) |
| Energy Density (Volumetric) | ≥620Wh/L (0.5C/0.5C) |
| Weight | ~360g |
| Operating Temperature (Charge) | 0°C ~ 45°C |
| Operating Temperature (Discharge) | -20°C ~ 60°C |
| Shipment Voltage | 3.5V – 3.6V |
Cell Dimensions (Unit: mm)
| Dimension | Value |
|---|---|
| Thickness (T) | 9.9 ±0.3 |
| Width (W) | 87.0 ±1.0 |
| Length (L) | 187.0 ±2.0 |
| Tab Width (L1) | 25.0 ±0.2 |
| Tab Center Distance (L2) | 41.5 ±3 |
| Tab Edge Distance (L3) | 10.25 ±1 |
| Tab Exposed Length (L4) | 17 ±1 |
| Positive Tab Thickness | 0.3 ±0.03 |
| Negative Tab Thickness | 0.2 ±0.02 |
Performance Data
C‑Rate Characteristics (25°C)
| Discharge Rate | Capacity Retention | Test Condition |
|---|---|---|
| 0.5C | ≥98% | Standard charge, rest 5min, CC discharge to 2.8V |
| 3C | ≥98% | Same as above |
| 5C | ≥90% | Same as above |
Temperature Characteristics
| Temperature | Capacity Retention | Test Condition |
|---|---|---|
| 40°C | ≥90% | Standard charge, store 2h at temp, 0.5C discharge |
| 25°C | 100% (reference) | – |
| 0°C | ≥85% | – |
| -10°C | ≥70% | – |
Cycle Life
| Cycle Condition | Min. Cycles | End of Life Criteria |
|---|---|---|
| Standard (0.5C charge / 0.5C discharge) | ≥800 cycles | Capacity ≥80% of initial |
| 3C Discharge (0.5C charge) | ≥500 cycles | Capacity ≥80% of initial |
| 5C Discharge (0.5C charge) | ≥300 cycles | Capacity ≥80% of initial |
Self‑Discharge & High Temperature Performance
| Test | Requirement | Condition |
|---|---|---|
| Self‑Discharge (28 days @25°C) | Capacity retention ≥85% | Standard charge, store 28d at 25±3°C, 0.5C discharge |
| High Temperature Performance (55°C, 4h) | Capacity retention ≥98% | After standard charge, hold 4h at 55±2°C, 0.5C discharge |
Mechanical Reliability
| Test | Requirement | Method |
|---|---|---|
| Vibration | No explosion, fire, leakage | 10Hz–55Hz sweep, 1.6mm excursion, 30min/axis (X,Y,Z) |
| Drop | No explosion, fire, leakage | Free fall from 1.2m onto 30mm wood board, 3 times |
Storage & Shipment
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Storage Temperature: 0°C ~ 35°C
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Storage Humidity: ≤75% RH
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Storage Voltage: 3.75V – 3.9V (40%–50% SOC)
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Note: Do not store above 3.9V for more than 7 days. Self‑discharge and IR increase over time are normal.
Warranty & Exclusions
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Warranty Period: 12 months from shipment date, or within specified cycle life (whichever comes first).
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Exclusions:
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Use beyond conditions in this specification
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Incompatible external equipment
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Post‑acceptance assembly damage
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Expired warranty period
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Safety Information (Summary)
DANGERS
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Do not expose to fire or high temperature.
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Avoid puncturing, cutting, or disassembling.
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Never mix with different battery types.
WARNINGS
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Use only designated charger.
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Do not charge in wet environments.
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Stop use if swelling, leakage, or deformation occurs.
PRECAUTIONS
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Fully charge before first use.
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Ensure ventilation during charging.
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Store in cool, dry place away from sunlight/magnets.
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For long‑term storage, keep at 50%–60% SOC.
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Use within specified altitude range.
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Avoid excessive frequent charging.
Why Choose This UAV Battery Pack?
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Customizable: We are a leading uav battery manufacturer offering tailored solutions – connectors, wires, PCM, voltage, capacity.
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High Discharge Rate: 5C continuous supports high‑power motors for industrial drones.
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Long Endurance: 27000mAh and high energy density maximize flight time.
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Proven Safety: Semi‑solid electrolyte reduces thermal runaway risk.
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Global Shipping: Trusted drone battery pack supplier for clients worldwide.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.