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  • INR18650-2600mAh Li-ion Rechargeable  cylindrical battery
Product Name:

INR18650-2600mAh Li-ion Rechargeable cylindrical battery

Product Parameter

2600mah Li-Ion Battery Product Details:

NO.ItemsSpecifications
1ModelINR18650-2600
2Can MaterialNi-Iron
3Rated Capacity2600 mAh(0.2C5A)
Min. Capacity2550 mAh(0.2C5A)
4Nominal Voltage3.7V
5Max. Charge Voltage4.2 V
6Discharge Cut-off Voltage2.75V
7Max. Charge Current1 C5A
8Standard Discharging Current0.2 C5A
9Max. Continuous Discharge Current13 A
10Max. Pulse Discharge Current30A( 2s pulse  )
11Max. Diameter(include PET)≤18.40 mm
12Max. Height (include PET)≤65.50mm
13Weight (Approx.)44.0±1.0g
14Impedance (Max. at 1000Hz、charged status)≤ 18 mΩ
15Charge Method (CC/CV)Standard0.5 C5A×6hrs
Quick1 C5A×1.5hrs.
16Operating TemperatureCharge0℃~45℃ 32oF~113oF
Discharge-20℃~60℃ -4oF~140oF
Storage-20℃~45℃ -4oF~113oF



configuration

INR18650-2600mAh Li-ion Rechargeable  cylindrical battery

Mainly capability graph (For Reference Only)

INR18650-2600mAh Li-ion Rechargeable  cylindrical batteryINR18650-2600mAh Li-ion Rechargeable  cylindrical battery

Characteristic

Without special instructions, the following tests should be done under the condition of : temperature(23℃±3℃), atmospheric pressure (86KPa~106KPa), relative humidity (45%~85%), and the tests should be done within two weeks after receiving the products.

the definitions of some nomenclatures of this specification :

standard Charge: Charge with current 0.2C5A to limit charge voltage under the condition of23℃±3℃ surrounding temperature, then change to charge with constant voltage till the current less than or equal to 0.02C5A.

Electrical Characteristic

NO.ItemStandardTest Method
1Discharge rate capabilitiesA)1 C5A ≥97% B)5 C5A ≥95%Standard charged under the condition of normal atmospheric pressure and the environmental temperature of 23℃±3℃ and45%~85%RH, then rest for 30mins and discharge at1C5A, 5 C5A to the discharge cut-off voltage respectively. Charge/discharge cycle can be conducted for 3 times beforemeeting the Standards(the same below)
2capacity retention and recoveryResidual capacity≥94% Recoverablecapacity≥*98%Standard charged under the condition of normal atmospheric pressure and the environmental temperature of 23℃±3℃,Stored for 28 days, then discharge at 0.2 C5A to 2.75Vmeasuring residual capacity; Then standard charge/discharge measure recoverable capacity.

             3
Low TemperaturePerformancedischarge capacity≥85% rated capacityno distortion and no ruptureThe cell shall be charged in accordance with the standard charge. Then stored in the temperature of -10℃±1℃ for4h, Discharge at the constant current of 0.2C5A down to the end-of-discharge voltage 2.750V.
4Cycle Life0.5C5A charge / 1C5A discharge cycle ≥ 1000cycles;
           1C5A charge / 5C5A discharge cycle ≥ 500cycles
A: 0.5C5A charged the cell to 4.2V,then change to charge with constant voltage till the current less than or equal to0.04C5A, rest for 30mins; 1C5A discharge to 2.75V, one cycle is finished, rest for 30mins. Then repeat above steps, when capacity is less than60% of initial capacity, the battery life is over.B: 1C5A charged the cell to 4.2V,then change to charge with constant voltage till the current less than or equal to 0.04C5A, rest for 30mins; 5C5A discharge to 2.75V, one cycle is finished, rest for 30mins. Then repeat above steps, when capacity is less than 70% of initial capacity, the battery life is over.

Safety Characteristic

NO.ItemStandardTest Method
1OverchargeNo fire, No explosionAfter standard charge, rest for 10mins; then charge at constant current of 3C5A to 10V.(or charge at 3C5A for90mins).
2Forced dischargeNo fire, No explosionThe battery to be discharged with standard discharging condition, Inverse charge current =1C5A;time: ≥90mins
3Short Circuit testNo fireNo explosionThe battery to be fully charged with standard charging condition, and short the positive and negative terminalswith wire resistance ≤50mΩ.Tests are to be conductedat 23℃±3℃ and at 55℃ ±5℃, keep 24h or case temperature decline to 20% of the max temperature ,test isover.
4Crush testNo fire, No explosionA battery is crushed between two flat surfaces. The applied force is 13 kN±1kN by hydrocylinder, Once the maximum pressure has been obtained or voltage decrease to 1/3 of nominal voltage sharply, then release pressure.

            5
Shock testNo fire, No explosionThe full charged battery is fixed on shock table, to force a certain shock to three mutual vertical direction, in initial3ms, the min. average acceleration is 75gn,the peak acceleration is between 125gn and 175gn.
6Heating test(130°C)No fire, No explosionThe cells are fully charged with standard charging condition, and put into incubator with nature air or cycled air convected, heat battery by velocity of 5°C ±2°C/min to130°C±2°C,and maintain for 10mins.
7TemperatureCycling Testno leakage, no fire, no explosionThe fully charged batteries are placed in a test chamber and subjected to the following cycles: a) Raising the temperature to 75°C ±2°C within 30 minutes and maintaining this temperature for 6 hours. b) Reducing the temperature to minus 40°C ±2°C within30 minutes and maintaining this temperature for 6 hours. c) Repeating the sequence for a further 9 cycles. d) After the 10th cycle, storing the batteries for 24 hours prior to examination.

Environment Adaptation Performance

NO.ItemStandardTest Method
1Altitude/Low pressure simulation testno leakage, no fire, no explosionThe full charged cells are to be stored for 6h at an vaccum environment with pressure of less than 11.6kPa and atemperature of 23℃±3℃.
2Free drop testno fire, no explosionThe fully charged battery drops on the concrete ground from height(1m),total 3 times,to obtain the shock of random directions.
3Vibration testNo remarkable damage, No smoking , No explosionAfter standard charging, fixed the cell to vibration table and subjected to vibration cycling that the frequency is to be varied at the rate of 1Hz per minute between 10Hz and 55Hz,the excursion of the vibration is 1.52mm. The cell shall be vibrated for 90 minutes per axis of x, y axes.

Storage Temperature for Shipping

If the cell is kept as ex-factory status (50% of charge), the 0.2C recoverable capacity rate is more than 80%.

1 month -20°C ~ 60 °C

2 months -20°C ~ 40 °C

3 months -20℃~ 25 °C

Appearance

There shall be no such defect as deep scratch, flaw, crack, rust, leakage, which may adversely affect commercial value of the cell.

Package

The cells are packed with JIANGSU SUNPOWER CO.,LTD. standard carton box, which hold four inner boxes. There are 100pcs 18650 cells per inner box. And the inner box and outer box identifies battery capacity, voltage and impedance information.

INR18650-2600mAh Li-ion Rechargeable  cylindrical battery

Warranty Period & Product Liability

According to the quality technical agreement, under normal use, to meet the requirements of relevant provisions of the technical specifications of the performance index in 3 years from manufacturing code. JIANGSU SUNPOWER CO., LTD. is not responsible for the troubles caused by mishandling of the battery which is against the instructions in this specification.

Warnings and Cautions in Using the Battery

To prevent a possibility of the battery from leaking, heating or explosion please observe the following precautions:

● When using a new battery for the first time or after long term storage, please use the battery charger specifically for that purpose fully charge the battery before use.

● Do not disassemble or open, crush, bend or deform, puncture, or shred;

● Do not modify or remanufacture, attempt to insert foreign objects into the battery, immerse or expose to water or other liquids such as water, seawater, drinks such as soft drinks, juices, coffee or others, or expose to fire, explosion, or other hazard.

● Do not short circuit a battery or allow metallic or conductive objects to contact the battery terminals.

● Avoid dropping the phone or battery. If the phone or battery is dropped, especially on a hard surface, and the user suspects damage, take it to a service center for inspection.

● The battery replacement shall be done only by either cells supplier or device supplier and never be done by the user.

● Replace the battery only with another battery that has been qualified with the system per standard. Use of an unqualified battery may present a risk of fire, explosion, leakage, or other hazard.

● Don't keep a battery at rest for a long time (over 6 months). Safety accident may happen when recharging battery which has a rest for a long time.

● In the event of a battery leak, do not allow the liquid to come in contact with the skin or eyes. If contact has been made, wash the affected area with large amounts of water and seek medical advice.

● Battery usage by children should be supervised. Seek medical advice immediately if a battery has been swallowed

● Never disassemble cells. The disassembling may generate internal short circuit in the cell, which may cause firing or other problems.

● Never incinerate nor dispose the cells in fire. These may cause firing of the cells, which is very dangerous and is prohibited.

● When use the battery , must to ensure the charge and discharge voltage of the battery is between 2.75V to 4.2V.

● Do not remove the outer sleeve from a battery pack nor cut into its housing.

● Do not mix our batteries with other battery brands or batteries of a different chemistry such as alkaline and zinc carbon.

● Do not mix new batteries in use with semi-used batteries, over-discharge may occur.

● Promptly dispose of used batteries in accordance with local regulations.

Ship

The cells might be damaged during shipping by shock. If any abnormal features of the cells are found such as deformation of the cell package, smelling of an electrolyte, an electrolyte leakage and others, the cells shall never be used any more. The Cells with a smell of the electrolyte or a leakage shall be placed away from fire to avoid firing.

Storage

The cell shall be stored at the environmental condition of -20℃ - 45℃ and 65%±20% RH. The voltage for long time storage shall be 3.5V-3.7V range. If the cell has to be storied for a long time (Over 3 months), the environmental condition should be: Temperature: 23℃±3℃; Humidity: 65%±20%RH; please activate the battery once every 3 months according to the following method: Charge with current 0.2C5A until the voltage achieve to 3.6V.

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