Environment Friendly 7.4 V 2000mah Rechargeable Battery Lithium Iron Pack

Rechargeable Lithium Iron Battery ICR18650 2000mAh 7.4V-Environment Friendly

Product Parameters:

Product performance:
 

1.The working voltage of single cell is as high as 3.6-3.8v.

2.Greater than the energy. At present, the actual specific energy of hyb steel shell battery is 100-135w.h/kg & 280-353w.h/l (2 times of Ni Cd and 1.5 times of Ni MH). With the development of technology, the specific energy can reach as high as150 w.h/kg and 400 & w.h/l.

3.Long service life. The service life of 18650 lithium battery is very long. The cycle life of 18650 lithium battery is more than 500 times, which is more than twice that of ordinary battery.

4.Good safety performance, no pollution, no memory effect. As the predecessor of Li ion, Li ion battery has short circuit due to its easy formation of dendrite lithium, which shortens its application fieldThere are some pollution elements in the environment. One of the disadvantages of some Ni Cd batteries is "memory effect", which seriously restricts the use of batteries, but there is no such problem in Li ion.

5.Large capacity. The capacity of 18650 lithium batteries is generally between 1200mAh and 3600mAh, while the capacity of general batteries is only about 800. If 18650 lithium batteries are combined to form 18650 lithium batteries, then 18650 lithium batteries will be used Group a can break through 5000 MAH at will.

Application:

1. Toys

2. Smoke alarm

3. Electric scales

4. Electric toothbrush

5. Wireless doorbell

6. Remote controller

7. Electronic instrument

8. Electronic thermometer

9. Cordless telephone/Microphone etc.

Performance Curves of Lithium Cell:
 

1.Lithium Cell Charge Curve (Charge at 1C)  
 

2. Lithium Cell Discharge Curve (Discharge at 1C )
 

3. Lithium Cell Cycle Life Curve
 

What is the Equalization Treatment of Lithium Battery Packs?

Lithium battery packs are made up of multiple batteries. Since the batteries are independent individuals, there will be some slight differences. After the combination is welded, it will be affected by the direction and length of the connecting piece and the welding process. Increasing the generation of differences, each charge and discharge will increase the value of individual differences. When the value reaches a certain height, it will eventually lead to partial overcharge and overdischarge of the cell. This situation will cause damage to the cell and ultimately As a result, the entire set of lithium batteries cannot work effectively.

The equalization treatment of lithium battery pack can solve this problem. When there is a large difference in the value of a single string of lithium-ion batteries, the equalization voltage of the battery is controlled by the BMS, which can maximize the service life of the lithium battery pack. To put it bluntly, the balance is to maintain all lithium battery packs in all normal categories to ensure overall safety.

The balance link is to ensure that the input and output of the lithium battery pack are reasonable to each lithium battery, so that they can be used reasonably and effectively without damage. At present, the two most common equalization methods for lithium battery packs are energy-consumption equalization and transfer-energy equalization.

 

Lithium battery equalization technology means that after the lithium batteries are grouped, the overall performance of all batteries in the battery pack is brought to the same level through human intervention. The purpose is to ensure that the performance of the lithium battery pack can be fully utilized and to ensure the safety of the battery during use.

 

 

FAQ

Q1:Are these new cells?
yes 100% ,factory direct.

 

Q2: Are you a trading company or manufacturer?
A: We are globally trusted supplier and manufacturer of emergency lighting battery, emergency lighting products, whose batteries range covers Ni-Cd, Ni-MH, LiFePO4,, Lion-polymer and other relevant lithium batteries.

 

Q3: Can you do OEM?

A: Yes, OEM is acceptable. You can provide the detailed specification requirements to us, our engineers can design the most suitable battery solution for you.

 

Q4: Is it possible to buy a sample to test?
A: Yes. You can buy a sample to test.

Q5:Where can I get the price?
A: Please Click Contact Now or Request a Quote. We will offer you the best quote in 24 hours after we get

the product specifications such as voltage capacity application etc.