Lithium Battery Cell 18650 Li-ion Battery Pack 3.7v 7.4V 2600mAh 19.24wh Power Lithium Batteries
Price:
Negotiable
MOQ:
100pcs
Delivery Time:
7-10days
Brand:
RESKY
Product Description
Lithium Battery Cell 18650 Li-ion Battery Pack 3.7v 7.4V 2600mAh 19.24wh Power Lithium Batteries
Electrical Performance
| Parameter | Specification |
|---|---|
| Nominal Voltage | 7.4V (two 3.7V 18650 cells in series) |
| Operating Voltage Range | 6.0V-8.4V |
| Rated Capacity | 2600mAh (at 0.2C discharge rate) |
| Charging Voltage | 8.4V standard |
| Charging Current | 0.2C-1C (520mA-2600mA recommended) |
| Discharge Current | ≤1C (2600mA) continuous, 2C (5200mA) peak |
| Cycle Life | ≥80% capacity after 500 cycles, ≥60% after 1000 cycles |
| Internal Resistance | ≤100mΩ (total pack including connections) |
| Safety Thresholds | Overcharge: 8.7±0.05V, Over-discharge: 5.5±0.1V |
Key Advantages for Heating Devices
- Strong Voltage Adaptability: 7.4V matches most small heating elements without additional transformers, reducing energy loss and device size
- Stable Power Output: Series structure provides stable voltage platform with slow voltage drop during discharge
- Balanced Capacity: 2600mAh provides 1.9-3.8 hours of continuous heating for 5-20W devices
- Standardized Design: Mature 18650 production ensures consistent parameters and reliable performance
- Compact Size: 18mm diameter, 65mm length fits portable heating devices
- Safety Features: Integrated protection boards with multiple safeguards against overcharge, over-discharge, and short circuits
- Cost-Effective: Mass production lowers costs compared to custom battery solutions
Applications
- Electric Tools: Clippers, drill saws - provides sustained power output
- Audio Equipment: Portable speakers - ensures stable voltage for clear sound
- Portable Electronics: Laptops, power banks - high-capacity energy storage
- Energy Systems: Solar/wind energy storage units
- Medical Devices: Portable monitors requiring long battery life
Safety Information
Overheating Risk
Battery packs operate within specific temperature ranges. Malfunctioning temperature control can lead to thermal runaway - a chain reaction causing rapid heat generation, potentially resulting in fire or explosion.
Pressure Build-up
Excessive heat causes battery swelling from internal pressure increases. Severe cases may lead to electrolyte leakage, which is flammable and corrosive, posing fire and chemical burn risks.
Product Images
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Shenzhen Resky Electronics Co., Ltd.
Location
Room 1405-1, Building 3B, Huaqiang Idea Park, Guangming Street, Guangming District, Shenzhen, Guangdong Province,China
Contact Person
Alice