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11.1V 2000mAh Compact 3S Li-ion Pack for Airsoft & Robotics
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11.1V 2000mAh 654065-3S LiPo Battery Pack
The Ufine 654065-3S battery pack provides 11.1V nominal voltage, 2000mAh capacity, and 22.2Wh nominal energy. Its maximum size is approximately 19.5 × 40 × 68 mm. The compact 3S1P design is suitable for devices that need a higher-voltage rechargeable battery in limited space
Performance Characteristics of the 654065-3S Battery Pack
The 654065-3S has defined discharge, temperature, cycle-life, and storage limits. These values help engineers check whether the pack matches the device power system.
- Discharge
- Temperature
- Cycle Life
- Storage
Defined Discharge Current
The 654065-3S supports a maximum discharge current of 2000mA. The pack is designed for devices that operate within this current limit.
- Nominal voltage: 11.1V
- Maximum discharge current: 2000mA
- Internal resistance: <220mΩ
- Discharge cut-off voltage: 8.25V
Operating Temperature Range
Charging and discharging have different temperature limits. Therefore, both ranges should be checked during device design.
- Charging temperature: 0°C to 45°C
- Discharging temperature: -20°C to 60°C
- Use outside these limits requires separate engineering evaluation
Cycle Life and Capacity Retention
The 654065-3S is designed for repeated charging and discharging. Its specified capacity retention remains ≥80% after 500 cycles.
- After 100 cycles: ≥92%
- After 300 cycles: ≥88%
- After 500 cycles: ≥80%
Storage Conditions
Storage temperature should be selected according to the storage period. For long-term storage, use the specified lower temperature range.
- Up to 1 year: -20°C to +30°C
- Keep the pack in a cool and dry location
- Avoid heat, short circuits, crushing, and puncture
654065-3S Battery Engineering Highlights
The 654065-3S uses three cells in series to provide an 11.1V nominal output. Its compact pack size supports higher-voltage devices with limited installation space.
Compact 11.1V 3S Design
The 3S1P configuration increases pack voltage while keeping the rated capacity at 2000mAh. The pack provides 22.2Wh of nominal energy in a maximum size of 19.5 × 40 × 68 mm.
- Nominal voltage and capacity: 11.1V / 2000mAh
- Nominal energy: 22.2Wh
- Configuration: 3S1P
- Maximum dimensions: 19.5 × 40 × 68 mm
- Maximum discharge current: 2000mA
- Internal resistance: <220mΩ
- Maximum pack charge voltage: 12.6V
- Discharge cut-off voltage: 8.25V
- Approx. weight: 101g
- PCM protection: Yes
654065-3S Manufacturing Controls
The 654065-3S follows defined production and inspection controls. These checks cover cell matching, pack assembly, PCM operation, and final performance.
View Production Details 
Standard 654065-3S Pack vs Custom Options
The standard pack provides an 11.1V 2000mAh configuration. Selected pack components can also be adjusted for OEM device integration.
Standard 654065-3S
- 11.1V nominal voltage
- 2000mAh nominal capacity
- 22.2Wh nominal energy
- 3S1P configuration
- Maximum size: 19.5 × 40 × 68 mm
- Approx. weight: 101g
- Maximum discharge current: 2000mA
- 12.6V maximum charge voltage
- 8.25V discharge cut-off voltage
- Internal resistance: <220mΩ
- Charging temperature: 0°C to 45°C
- Discharging temperature: -20°C to 60°C
- PCM protection included
Custom Options
- Connector type and mating interface
- Wire length, gauge, and polarity
- PCM and protection configuration
- Optional NTC or temperature sensing
- Pack layout according to device space
- Other requirements subject to engineering evaluation
Need More Capacity?
If your device needs more runtime, consider the UFX104050-3S 11.1V 2300mAh Battery Pack . It provides 2300mAh rated capacity, which is 15% higher than the 2000mAh 654065-3S. Before switching models, compare the battery size, current requirements, connector, wiring, and available installation space.
Battery Specification
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1. Mechanical Characteristics
Cell 654065-3S PCM Yes NTC No Weight appr. 101g Configuration 3S1P -
2. Electrical Specification
Capacity 2000mAh Nominal Voltage 11.1V Energy 22.2Wh Internal Resistance less than 220mΩ Max. Charge Voltage 12.6V Discharge Cut Off 8.25V Max. Charge Current 2000mA Max. Discharge Current 2000mA Standard Charge Current 400mA Standard Discharge Current 2000mA Charging Temperature 0℃ to 45℃ Discharging Temperature -20℃ to 60℃ Storage Temp. Range 1 year at -20℃ to +30℃ 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 2.7V ±80mV (50to 150msec. delay, release 3.0V ±100mV) Overcurrent Detection 2.5A to 4.5A (5 to 10msec. delay) Short protection Yes
When your airsoft gun or portable drone underperforms, the source of the problem is often the battery. Selecting the right 11.1v 2000mah battery can make a dramatic difference in trigger response, motor speed, and overall runtime. This guide examines the 11.1V 2000mAh Lithium Ion Battery Pack 654065-3S and why it stands out among airsoft lipo battery options.
Part 1. What Makes a 654065-3S 3S Lipo Battery Special?
The 654065-3S pack is engineered for compact high-performance devices. Unlike standard 2000mah battery packs, its 3S configuration ensures 11.1V nominal voltage with low internal resistance, delivering both consistent mid-power output and rapid bursts when needed.
Whether used in airsoft gear, compact robotics, or UAVs, the 654065-3S keeps devices responsive without adding unnecessary bulk.
Part 2. Advantages of the 11.1V 2000mAh Lipo Battery 654065-3S
- 1. Stable Voltage Under Mid-Power Loads
- Reliable Performance
- With a nominal voltage of 11.1V and maximum discharge current up to 2A, this 11.1v 2000mah lipo battery provides smooth, predictable power for devices requiring steady energy delivery.
- 2. High Pulse Output for Quick Response
- Instant Energy Delivery
- Short bursts of high current allow airsoft guns and compact robotics to react instantly, enhancing trigger response, motor torque, or sensor responsiveness.
- 3. Lightweight & Compact Form Factor
- Easy Integration
- Weighing only ~101g, the pack fits seamlessly into small spaces without affecting device ergonomics, making it ideal for portable instruments and drones.
- 4. Wide Operating Temperature Range
- All-Weather Reliability
- Engineered to operate between -20°C to 60°C, this 11.1v 2000mah battery ensures reliable performance whether in outdoor airsoft matches or field robotics challenges.
Part 3. Comparing 654065-3S with Generic 11.1V 2000mAh Batteries
| Feature | Ufine 654065-3S | Generic 11.1V 2000mAh |
|---|---|---|
| Voltage Stability | Consistent 11.1V output | Fluctuates under load |
| Pulse Capacity | Supports short bursts up to 2A | Limited or inconsistent |
| Size & Weight | Compact 654065-3S, ~101g | Bulkier, less predictable dimensions |
| Temperature Range | -20°C to 60°C | -10°C to 45°C |
| Customization | Connector & PCM options available | Limited or none |
Part 4. How to Choose the Right 11.1v 2000mah Battery Pack?
- Airsoft Guns: Look for high pulse output for instant trigger response.
- Drones: Choose lightweight packs with stable voltage to ensure flight stability.
- Robotics Modules: Prioritize steady mid-power output to prevent motor stutter and sensor errors.
- Outdoor Usage: Ensure wide temperature tolerance for reliable performance in varied environments.
Part 5. Real-World Applications of 654065-3S
- Airsoft Competitions: Provides consistent power for long matches without voltage drop.
- Field Robotics: Ensures smooth motor control and sensor operations even in compact designs.
- Compact Drones: Lightweight pack maximizes flight time and responsiveness.
Pro Tip: For devices that demand stable mid-power bursts in compact setups, the 11.1v 2000mah lipo battery 654065-3S is the optimal choice to minimize downtime and prevent unexpected voltage sag.
Need a reliable 11.1v 2000mah battery for your airsoft gun or robotics project? Contact Ufine to request a custom pack today!
FAQs
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What devices are compatible with the 654065-3S 11.1V 2000mAh battery?
The 654065-3S pack is ideal for airsoft guns, compact drones, robotics modules, and other portable electronics that require stable 11.1V power and moderate discharge currents up to 2A. -
How long can I expect the battery to last during continuous use?
Runtime depends on your device's power draw. For typical airsoft rifles or small drones, the 2000mAh capacity provides several hours of continuous operation, ensuring consistent performance throughout use. -
What safety measures are included in the 654065-3S pack?
This pack includes an integrated protection circuit module (PCM) to prevent overcharge, overdischarge, and short circuits, ensuring safe operation even under heavy use. -
Can the battery handle high-current bursts required for airsoft or robotics applications?
Yes, the 654065-3S supports pulse discharges up to 2A, allowing instant response for triggers, motors, or actuators without voltage sag or performance drops. -
What are the storage recommendations for this 11.1V 2000mAh battery?
Store the battery in a cool, dry place. It can safely remain for up to 1 year at -20°C to 30°C without significant capacity loss. Avoid prolonged storage at high temperatures to maintain optimal lifespan. -
Is customization available for the 654065-3S battery pack?
Yes, Ufine can customize connectors, PCM settings, and physical dimensions of the 654065-3S to meet specific device requirements, ensuring compatibility with a variety of airsoft, drone, and robotics setups.
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