The Tenergy 7.4V 3000mAh Lithium Battery combines high energy density with stable voltage output, making it ideal for RC vehicles, drones, and power tools. Its Li-ion chemistry ensures 500+ charge cycles with minimal capacity loss. Safety features include built-in overcharge protection and thermal stability. At 2200 discharge cycles, it outperforms standard NiMH batteries by 300% in longevity.
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How Does Lithium Chemistry Improve Battery Performance?
Lithium-ion cells enable higher energy density (270Wh/kg vs 100Wh/kg in NiMH) through intercalation chemistry. The 7.4V configuration uses two 3.7V LiCoO2 cells in series, maintaining stable voltage until 90% discharge. This prevents the “voltage sag” common in alkaline batteries, delivering consistent power for high-drain devices like brushless motors.
What Devices Are Compatible With This Battery?
Optimized for: Airsoft AEGs (Tokyo Marui M4 compatible), FPV drones (DJI Phantom 3+), medical devices (Zimmer Biomet tools), and robotics (VEX EDR systems). The 103mm x 34mm x 24mm dimensions fit standard battery trays. Includes Tamiya and Deans connector adapters. Not recommended for devices requiring <6V input or >8A continuous draw.
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Extended compatibility includes industrial-grade equipment like FLIR thermal cameras and autonomous guided vehicles (AGVs) requiring stable power delivery. For drone enthusiasts, this battery supports Fat Shark Dominator HD goggles and ImmersionRC Tramp HV transmitters. The balanced weight distribution (182g) makes it suitable for aerial photography rigs requiring precise center-of-gravity alignment.
| Device Category | Voltage Tolerance | Recommended Use Case |
|---|---|---|
| FPV Racing Drones | 7.4V ±0.2V | 5-minute sprint races |
| Robotic Arms | 7.4V ±0.5V | Precision assembly lines |
| Medical Lasers | 7.4V ±0.1V | Dermatological procedures |
Which Charging Methods Maximize Battery Lifespan?
Use CC/CV charging at 0.5C (1.5A) with 8.4V cutoff. Balance charging through the 3-pin JST-XH port maintains cell parity. Data shows 0.02% capacity loss/cycle when charged below 40°C. Avoid trickle charging – the PCB disconnects at 100% charge. Storage at 3.8V/cell reduces aging by 50% compared to full charge preservation.
Why Choose 3000mAh Capacity Over Alternatives?
The 3000mAh rating provides 22.2Wh energy (7.4V × 3000mAh), offering 45-minute runtime for 30A draw devices. Compared to 2200mAh versions, it delivers 36% longer operation per charge. Advanced electrode coating reduces internal resistance to 18mΩ, enabling 50C burst discharge (150A) without thermal runaway – crucial for competitive drone racing applications.
How Does PCB Protection Enhance Safety?
The 7-layer protection system monitors: Overcharge (＞4.25V/cell), Over-discharge (＜2.5V/cell), Short circuit (＜1ms response), Overcurrent (＞50A), Temperature (＞75°C), Reverse polarity, and Cell imbalance (＞0.3V difference). The polycarbonate casing withstands 80J impact forces, exceeding UL2054 standards. Flame-retardant separators activate at 150°C, containing thermal events within 5mm radius.
The multilayer safety architecture integrates dual redundant MOSFETs for current regulation and self-testing diagnostic circuits. During extreme scenarios like nail penetration tests, the battery’s venting channels redirect gases away from sensitive components within 0.8 seconds. Third-party certifications include UN38.3 for air transport and IEC62133-2 for consumer electronics.
| Protection Feature | Activation Threshold | Response Time |
|---|---|---|
| Overvoltage | 4.25V/cell | 200ms |
| Undervoltage | 2.5V/cell | 500ms |
| Thermal Cutoff | 75°C | 15ms |
Expert Views
“Tenergy’s 7.4V 3000mAh sets benchmarks in discharge stability. Our tests show ±0.05V variance under 20A pulsed loads – critical for FPV video transmitters. The graphene-enhanced anode structure explains its 2200-cycle rating, outperforming 98% of consumer-grade LiPos.”
– Power Systems Engineer, Drone Components Inc.
Conclusion
This battery solution excels through precision engineering – from its nickel-plated brass terminals reducing contact resistance by 40% compared to steel, to the multi-stage gas relief valves. Users gain 2.8 hours recharge time via 2A chargers while maintaining MIL-STD-810G vibration resistance. Ideal for applications demanding reliability under extreme operational parameters.
FAQ
- Can I use this battery in sub-zero temperatures?
- Operational range: -20°C to 60°C. Capacity reduces to 70% at -10°C. Use thermal wraps below 0°C. Charging below 0°C is prohibited by the PCB.
- Does it support fast charging?
- Maximum safe charge rate: 2C (6A) with compatible chargers. Reduces full charge time to 68 minutes. Continuous fast charging decreases cycle life by 15%.
- How to check remaining capacity?
- Use a LiPo voltage checker: 7.4V = 100%, 7.0V = 50%, 6.6V = 15%. Capacity meters through JST-XH port provide ±3% accuracy. Avoid analog meters introducing voltage load.