Li-ion Polymer 232738 2700mAh 3.8V with PCB and UL1571 24AWG RED&BLACK (The operating temperature is -40℃~55℃)
Product Parameters:
| Pos. | Product Parameters | Data |
| 1 | Cell dimension | Max 24(T) * Max 28(W) * Max 41(L) mm |
| 2 | Nominal capacity | 2750mAh |
| 3 | Minimum Capacity | 2700mAh |
| 4 | Norminal voltage | 3.8V |
| 5 | Standard charging method | 0.2C constant current to 4.35V, constant voltage 4.35V continue charging till current decline to ≤0.01C. |
| 6 | Charge current | 0.5c/1350mAh; 1.0C/2700mAh |
| 7 | Standard discharging method | 0.2C constant current discharge to 2.5V |
| 8 | Operation Temperature and relative humidity Range | Charge: 0~15℃ Max 0.2C CV to 4.35V 15~45℃ Max 1.0C CV to 4.35V , 60±25%R.H. Discharge: -40~10℃ Max 0.2C DC to 2.5V 10~60℃ Max 1.0C DC to 2.5V , 60±25%R.H. Storage temperature for a long time: 0~25℃, 60±25%R.H. |
Application :
lighting, backup power supply, wind energy storage, communication equipment, IT products, IC card terminal, GPS system, LED lights, medical equipment,instrumentation, beauty and hair products, electric toys, flashlight, miner's lamp, agricultural machinery equipment, electric tools, etc.
Product performance:
1. Good safety performance. Built in circuit protection board, with short circuit, overcharge,over discharge, shock, vibration, acupuncture, high temperature,no explosion ,etc.
2. Stable performance. Long cycle life, after 500 times of ontinuous charge and discharge,the battery capacity shall not be less than 80% of the rated capacity.
3. Small thickness and high volume utilization. Polymer lithium battery overcomes Lithium battery in the thickness of the bottleneck, to achieve ultra-thin settings, and can assemble it into a credit card. Polymer cell can achieve thickness up to less than 1 mm, in line with the current demand for mobile phones.
4. Light weight. Polymer lithium battery does not need to use metal shell as outer packaging.In quality, it is 40% lighter than that of steel shell lithium battery with the same capacity shell batteries are 20% lighter.
5. Quality assurance. It adopts A-product cell with high capacity and low internal resistance.
6. Shape can be customized. Polymer lithium battery models and capacities are available,it has strong applicability.
7. No memory effect. It can be charged and discharged at any time.
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 Cycle Life of Lithium-Ion Batteries?
There are many factors that endanger the service life of the lithium battery's circulatory system, but the direct reason is that the total number of lithium-ion batteries participating in kinetic energy transmission continues to decrease. It must be emphasized that the total output of lithium in rechargeable batteries has not decreased, but the active lithium-ion batteries are becoming less and less. They are restricted elsewhere or in the safe passage of themed activities, and cannot participate in the circulatory system battery charge and discharge at will. The whole process.
Under normal conditions, lithium batteries have been operating for 2 to 4 years, and the recharging frequency of the recycle battery is about 300 times. According to the quality of the rechargeable battery and the materials of the lithium battery, the life frequency of the lithium battery is clarified:
1. The frequency of the circulation system of ternary materials is around 800.
2. The cycle frequency of lithium iron phosphate battery is about 2500 times.
3. The frequency of the genuine lithium battery cycle system is different from that of the defective lithium battery cycle system. The genuine rechargeable battery is designed, manufactured and manufactured according to the cycle system frequency on the manufacturer's instructions. The frequency of the defective battery cycle system is sometimes very high. It may not be easy to circulate the system 50 times.
The current life of the 18650 cycle system can be up to 500 to 1000 times, and if it is a rechargeable battery produced by a reliable manufacturer, the life of the 18650 cycle system can be up to 2000 times. Of course, if it is a defective product Or counterfeit rechargeable batteries, then it is too short.
Its service life is divided into cycle time service life and schedule service life. Cycle time service life refers to the frequency of the battery charging cycle time of a rechargeable battery; calendar table service life refers to the time from production to completion of the rechargeable battery. The service life of this type of cyclic system refers to the frequency of recharging the battery of the lithium battery recyclable system.
