The Tenergy 7.4V 2200mAh Li-Ion battery combines high energy density, lightweight design, and stable output, making it ideal for drones, RC vehicles, and portable electronics. Its rechargeable nature and built-in safety mechanisms ensure cost-efficiency and reliability. This lithium-ion cell delivers 16.28Wh of energy, supports fast charging, and operates efficiently between -20°C to 60°C.
How to Prevent Lithium-Ion Battery Fires and Explosions
What Are the Key Specifications of the Tenergy 7.4V 2200mAh Battery?
The Tenergy 7.4V 2200mAh Li-Ion battery offers a nominal voltage of 7.4V, a capacity of 2200mAh, and an energy output of 16.28 watt-hours. It features a 2S1P configuration (two cells in series), a discharge rate of 1C, and a maximum continuous current of 2.2A. The battery weighs 110g and includes overcharge/over-discharge protection.
| Parameter | Specification |
|---|---|
| Cell Configuration | 2S1P |
| Charge Voltage | 8.4V |
| Cycle Life | 500+ cycles |
How Does This Battery Compare to NiMH or LiPo Alternatives?
Unlike NiMH batteries, the Tenergy Li-Ion variant provides higher energy density (250Wh/kg vs. 100Wh/kg) and no memory effect. Compared to LiPo batteries, it offers safer chemistry with rigid casing and lower risk of swelling. However, LiPo cells typically support higher discharge rates (e.g., 50C), making them better for high-performance RC applications.
Top 5 best-selling Group 14 batteries under $100
| Product Name | Short Description | Amazon URL |
|---|---|---|
|
Weize YTX14 BS ATV Battery  |
Maintenance-free sealed AGM battery, compatible with various motorcycles and powersports vehicles. | View on Amazon |
|
UPLUS ATV Battery YTX14AH-BS  |
Sealed AGM battery designed for ATVs, UTVs, and motorcycles, offering reliable performance. | View on Amazon |
|
Weize YTX20L-BS High Performance  |
High-performance sealed AGM battery suitable for motorcycles and snowmobiles. | View on Amazon |
|
Mighty Max Battery ML-U1-CCAHR  |
Rechargeable SLA AGM battery with 320 CCA, ideal for various powersport applications. | View on Amazon |
|
Battanux 12N9-BS Motorcycle Battery  |
Sealed SLA/AGM battery for ATVs and motorcycles, maintenance-free with advanced technology. | View on Amazon |
For users prioritizing safety over extreme performance, this battery strikes an ideal balance. The aluminum alloy casing provides better physical protection than standard LiPo pouches, while the 1C discharge rate meets requirements for surveillance drones and photography equipment. In thermal stress tests, the Tenergy cells showed 18% less expansion than equivalent LiPo packs after 200 cycles.
What Safety Features Are Integrated into the Design?
The battery incorporates a PCM (Protection Circuit Module) that prevents overcharging (beyond 8.4V), over-discharging (below 6V), and short circuits. Its flame-retardant ABS casing and pressure relief vents mitigate thermal runaway risks. The balanced cell configuration ensures voltage stability during charge-discharge cycles.
The multi-layered protection system includes redundant voltage sensors monitoring each cell independently. During testing, the PCM cut off power within 0.8 seconds of detecting a short circuit. The pressure vents activate at 1,200kPa, effectively releasing gases before casing rupture occurs. These features make it compliant with UN38.3 transportation safety standards.
How Does Temperature Affect Performance and Lifespan?
Below 0°C, capacity drops by 20–30%, and charging risks lithium plating. Above 45°C, electrolyte degradation accelerates, reducing cycle life by 40%. Optimal use between 20°C–25°C maintains 80% capacity after 500 cycles. Thermal sensors in advanced models auto-advert discharge rates to prevent overheating.
Expert Views
“The Tenergy 7.4V Li-Ion battery’s PCM design sets a benchmark for safety in mid-range applications. Its cycle life outperforms competitors by 15–20% under moderate discharge conditions. However, users must avoid exceeding the 2.2A continuous current limit to prevent premature aging of the cells.”
— Industrial Battery Systems Analyst
- Can This Battery Be Used in High-Drain Devices?
- No. The 1C discharge rate (2.2A) makes it unsuitable for devices requiring sudden high-current bursts, like racing drones. Use LiPo batteries with 30C+ ratings for such applications.
- Is a Special Charger Required?
- Yes. Always use a Li-Ion-specific charger with balancing ports to ensure cell voltage uniformity. Chargers for NiMH or LiPo may damage the battery.
- How Many Cycles Can It Endure?
- Up to 500 cycles while retaining 80% capacity, assuming partial discharges (50% DoD). Full discharges reduce lifespan to 300 cycles.