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18650-3S1P 2600mAh Lithium Battery Pack

This battery is a lithium battery pack,it is composed by 18650 battery cells,3pcs is connected in series,1pc in parallel. Its capacity has 2600mAh.

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I / Product Spec:



Rated Performance




Rated Capacity



Discharge at 0.2C

 after standard charged fully





Nominal Voltage


Operating voltage 

standard discharge


Cut-off Voltage


 Voltage at end of discharge


Charging Voltage




 Standard Charge

Constant Current 0.5C

Charge time: Approx 4.0h.


 Standard Discharge

Constant current 0.2C

   End voltage 3.0V


 Max. Continuous Discharge Current



Operation Temperature Range

Charge: 0~45℃

60±25%RH(Bare Cell.)


Discharge: -20~60℃


Max size 


Can be Customized



 Based on UN3480 PI965

 Can be Customized



II / Product Description:


Model: 18650 3S1P 

Rated Capacity: 2600MAH

Minimum Capacity:2600MAH

Norminal Voltage: 11.1V  

Cut off Voltage:9V

Operation Temprature:  0°C -60° C


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Sincere service

*Lithium battery produced by Sum has a 12-month warranty. If there is any problem during the warranty period, you can directly ask us to solve it.

*If there is an after-sales problem, we will provide a solution within 24 hours after receiving the complaint. The cause of the problem is analyzed within 3 days and the solution will be available within 7 days.

* All products of Sum Electronics have been globally insured, and foreign countries importers do not have to worry about claims.

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