3S LiPo Battery Popular Choice
11.1V 2000mAh Compact 3S Li-ion Pack for Airsoft & Robotics
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Compact 3S 11.1V 2000mAh Battery Pack 654065-3S for High-Performance Airsoft & Robotics
Need a lightweight 3S pack that reacts instantly under load? Ufine’s 11.1V 2000mAh Battery Pack 654065-3S is engineered for equipment that demands fast current response, low internal resistance, and stable voltage throughout the entire discharge curve. Its slim 654065 format offers an excellent balance of compactness and 22.2Wh usable energy—ideal for airsoft platforms, robotics modules, portable analyzers, and compact gear requiring a high-output yet thermally stable 3S solution.
Performance Advantages of the 11.1V 2000mAh 654065-3S Pack
Explore high-response discharge, thermal stability, cycle endurance, and storage performance designed for compact 3S power systems.
- Load Response
- Thermal Stability
- Cycle Retention
- Standby Performance
Fast Current Response for Mid-Power Surges
The 654065-3S pack maintains stable 11.1V output under 2A continuous load with minimal voltage dip, making it ideal for airsoft triggers, servo systems, and portable tools requiring smooth pulse delivery.
- Max discharge: 2000mA (1C)
- Internal resistance < 220mΩ for quick response
- Cutoff voltage: 8.25V for improved usable capacity
Reliable 3S Output Across Broad Temperature Shifts
Optimized for field applications, this pack sustains stable voltage from -20°C to 60°C without excessive IR rise, ensuring dependable behavior during rapid movement or outdoor operation.
- Charging: 0°C to 45°C
- Discharging: -20°C to 60°C
- Maintains predictable voltage even under cold starts
Consistent Capacity Over Extended Use
With tightly controlled cell balancing and PCM protection, the 654065-3S pack retains performance over frequent cycling—ideal for gear upgraded or charged regularly.
- ≥92% capacity after 100 cycles
- ≥88% after 300 cycles
- ≥80% after 500 cycles
Stable Standby Voltage for Intermittent Use
Designed for devices with irregular usage patterns, the 3S pack keeps internal resistance stable during storage and retains capacity across long idle intervals.
- 1 year storage: -20°C to 30°C
- Minimal IR increase during standby
- Reliable for seasonal or mission-based equipment
Optimized 3S Power Architecture for Responsive Output
The 654065-3S pack delivers the voltage consistency needed for compact devices operating with sudden load transitions.
Why the 654065-3S Configuration Performs Better
Each cell is paired with a tuned PCM supporting safe 12.6V charging while preventing overcurrent during rapid output spikes—essential for airsoft and robotics systems.
- Integrated PCM with fast overcurrent cutoff
- Low-resistance construction for smooth current peaks
- Compact 3S1P format maximizing 22.2Wh usable energy
- Stable discharge from 12.6V to 8.25V
- Designed for responsive electronics with fluctuating loads
Manufactured for Precision 3S Performance
Ufine’s production ensures tight IR matching and pack balance, crucial for stable 11.1V output.
View more production details 
Ufine 654065-3S Pack VS Generic 3S Packs
Why professionals choose our tuned 3S configuration.
Ufine 654065-3S
- Consistent 11.1V output across full discharge curve
- IR-matched cells maintaining smooth pulse delivery
- Precision PCM supporting fast overcurrent response
- Verified 2A continuous discharge stability
- Lightweight 101g with compact footprint
- Custom wiring, connectors, and PCM options
Other 3S Packs
- Unbalanced cells causing voltage sag under load
- Higher IR variation affecting surge response
- Generic PCM with inaccurate cutoff thresholds
- No validation for high-pulse applications
Customization Options and Process
Tailored 3S lithium solutions for your device requirements.
- 3S packs in 654065 or other cell formats
- Capacity choices from500mAh–10Ah
- Temperature options from-20°C to 65°C
- Connector types: JST / Molex / TE / custom
- Advanced PCM with tuned thresholds
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01Specify 3S configuration & device dimensions
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02Define load profile, current, and runtime
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03Select temperature and cycle performance level
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04Choose connectors and wiring layout
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05Integrate PCM & special safety parameters
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
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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