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Li-ion 18650 3.6V 2600mAh Cell

Li-ion 18650 3.6V 2600mAh Cell

Li-ion 18650 3.6V 2600mAh Cell Characteristics Cycle life is super long; 100%DOD could reach 1000 times; Two time of normal li-ion 18650 cell Fast Charge: Support max 0.5C charge rate, which making charging time decreased to be 2 Hours Powerful output ability; Support max 2C constant discharge,...
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Li-ion 18650 3.6V 2600mAh Cell



  • Cycle life is super long; 100%DOD could reach 1000 times; Two time of normal li-ion 18650 cell

  • Fast Charge: Support max 0.5C charge rate, which making charging time decreased to be 2 Hours

  • Powerful output ability; Support max 2C constant discharge, 3C pulse discharge

  • No Memory effect

  • Working temperature range is wide

  • CE / RoHS / UN38.3 / MSDS / UL 1642 / IEC 62133 / CB

Product parameter






Standard Capacity


0.2C,( current value of 2600mA at 1C)


Capacity Range




Standard Voltage

3.6 V


Alternating Internal Resistance



Charge Conditions

Cut-off Voltage


constant-current charge to 4.2V at 0.3C,constant voltage charge to stop until 0.01C mA

Cut-off Current



Max. Charging Current



Discharge Cut-off Voltage




Standard Discharge Current



Fast Discharge Current



Max. Continuous Discharge Current



Pulse Discharge Current



Cycle Characteristic


the residual capacity is no less than 70% of rated capacity at 0.5C rate.

1500 times(80%DOD)

3000 times(50%DOD)


Working Temperature



Storage Temperature

-20°C ~ 45°C

Short-term storage (< 3 months)


Battery Weight

45g (Approx.)

Product test data curve



Application field

  • Solar Light

  • Home Light system

  • Battery Pack

  • Home application

  • SLA Battery Replacement

  • Light Electric Vehicle

  • Power bank

  • Others

Commercial terms

Original: Shandong, China
 Company approval: ISO9001 / TS 16949
 Package: Internal Box+Standard Carton+Wooden Pallet
 Incoterm: EXW / FOB / CIF
 Shipping: Courier Shipping / Air Shipping / Sea Shipping
 Free Sample: Yes
 Sample delivery time: 7-10 Days
 Bulk order delivery time: 20-25 Days

main market

  • West Europe

  • North America

  • Asia

  • Australia

  • Africa

1. Are you a manufacturer, trading company or a third party?
We are a manufacturer, and we have builded up our company since 2003.

2. Where is your factory located?
Our factory address is : No.3 Fuyuan Road, Hi-Tech District, Zaozhuang City, Shandong, China

3. How can I get to your factory?
Our factory is near Zaozhuang high speed train station, we can pick you up from the train station.

4. If i will need to stay in your place for few days, is that possible to book the hotel for me?
It’s always my pleasure, hotel booking service is available.

5. Which level of quality are your products?
We guarantee high quality with 2 years full warranty, also approved by CE / RoHS / UN38.3 / UL 1642 / IEC 62133 / CB

[When should I start charging in normal use]

This can often be seen because the number of charge and discharge cycles is limited, so the battery power of the mobile phone should be recharged as much as possible. In fact, the life of the lithium battery has nothing to do with this. An experimental table on the charge and discharge cycle of a lithium ion battery can be exemplified below. The data on the cycle life are listed below:

Cycle life (10% DOD): >1000 times

Cycle life (100% DOD): >200 times

Among them, DOD is the abbreviation of depth of discharge.

As can be seen from the table, the number of chargeables is related to the depth of discharge, and the cycle life at 10% DOD is much longer than that of 100% DOD.

Of course, if it is converted to the actual total capacity of the charge: 10% * 1000 = 100, 100% * 200 = 200, the latter's full charge and discharge is still better, but the previous netizen's statement to do some corrections:

Under normal circumstances, you should have the reserve to charge according to the principle that the remaining battery power is used up and recharge, but if your battery is not likely to stick to the whole day on the 2nd day, you should start charging in time, of course, if Willing to carry the charger to the office is another matter.

The principle of recharging the remaining battery power is not to go to extremes. One of the more widely spread arguments like long charging is to "try to run out of battery power." This practice is actually only a nickel battery, the purpose is to avoid the memory effect, unfortunately it is also circulating on the lithium battery.

Someone has used the example of automatic shutdown since the warning of the low battery level of the mobile phone is still not used. As a result, the mobile phone in this example did not respond during the subsequent charging and booting, and had to be sent to the customer service for repair.

This is actually caused by the battery being over-discharged and the voltage is too low, so that it does not have normal charging and power-on conditions.

Personally recommend that the mobile phone lithium-ion battery should not be too full or use no electricity, the battery will not charge when it is used up, it will not cause damage to the battery, charging within 2-3 hours is appropriate, not necessarily full. However, the lithium battery should be fully charged (normal charging time) and discharged after 1 to 2 times every 3 to 4 months.

Lithium batteries that have not been used for a long time should be stored in a cool and dry place, in a semi-electric state (70--80% of full power, if your mobile phone displays 4 grids when fully charged, then 3 grids can be best). The storage of full power is dangerous and the battery will be damaged. If the battery is stored without electricity, it will be destroyed. Check every three to six months to see if you want to recharge.

Lithium-ion batteries can be divided into liquid lithium-ion batteries and polymer lithium-ion batteries according to the electrolyte. The electrolyte of the polymer lithium-ion battery is a colloid and does not flow, so there is no leakage problem and it is safer.

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