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Power Cylindrical 18650 Li-ion Polymer Battery Pack 3.7v 7.4V 2600mAh 19.24wh Lithium Batteries

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Power Cylindrical 18650 Li-ion Polymer Battery Pack 3.7v 7.4V 2600mAh 19.24wh Lithium Batteries

Brand Name:	RESKY
Model Number:	LI-7.4-2600
MOQ:	100pcs
Price:	Negotiable
Packaging Details:	Paper box
Payment Terms:	T/T,Western Union

Detail Information

Product Description

Ratings & Reviews

Detail Information

Place of Origin:

China

Certification:

CE, RoHS, MSDS, Un38.3,IEC62133,CB,UL,ECT

Rated Capacity:

2600mAh

Standard Voltage:

7.4V

Usage:

Heated Gloves, Heated Insoles, Heating Jacket, Bike Light, Medical Device, Speakers

Cell:

18650 Cells

Wh:

15W

Connector:

Customizeable

Weight:

105g

Color:

Blue, Black,ect

Shipping:

UPS, DHL, FedEx, TNT, By Air, By Sea

HS Code:

8507600090

Supply Ability:

10000pcs/day

Highlight:

18650 Li-ion battery pack 3.7v 2600mAh

cylindrical lithium battery pack 7.4V

Li-ion polymer battery 19.24wh

Product Description

Power Cylindrical 18650 Li-ion Polymer Battery Pack

3.7V / 7.4V 2600mAh 19.24Wh 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

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.

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