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Sino Science&Technology Battery Co.,ltd is a high-tech production enterprise which specialize in the R&D and production of Lifepo4 batteries,energy storage battery,portable UPS power supply,personalized customization lithium battery pack etc .

Environmental cylindrical 18650 21700 32700 26650 14500 18500 lithium ion rechargeable battery, LifePO4 battery,3.7V lithium polymer battery, NiMH battery , NiCD battery ,Lead acid battery,dry cell battery ,alkaline battery ,heavy duty battery, button cell battery etc. we devote to R&D,innovation ,production & sales

Shenzhen Green Power Energy Battery Co.,ltd specializes in a wide range of digital battery such as environmental cylindrical 18650 21700 32700 26650 14500 18500 lithium ion rechargeable battery, LifePO4 battery, 3.7V lithium polymer battery, NiMH battery, NiCD battery, dry cell battery, alkaline battery, heavy duty battery, button cell battery etc. we devote to R&D, innovation, production & sales. With automatic production machines we have been exported goods to all over the world over 15years. We have complete exported certificate such as KC, CE, UL, BSCI, ROHS, BIS, SGS, PSE etc

Dongguan Datapower New Energy Co.,ltd is a high-tech production enterprise which specialize in the R&D and production&sale of lithium polymer batteries,drone battery,airplane batteries &battery pack etc.

Anhui Seong-hee New Energy Technology Co.,ltd is a high-tech production enterprise which specialize in the R&D and production of primary batteries. And mainly produces and sells alkaline batteries & carbon zinc batteries. there are size AA, AAA, C, D, 9V etc

Guizhou STD Battery Co.,ltd is a high-tech production enterprise which specialize in the R&D and production & sale of lithium polymer batteries, drone battery, airplane batteries & battery pack etc.

release time:2024-04-26 Hits: Popular:AG11 battery
Characteristics of 3.7v 3000mah 18650 battery and working principle of protection circuits
Since the characteristics of 3.7v 3000mah 18650 battery are different from other rechargeable lithium batteries, there is a circuit board inside with the characteristics of 3.7v 3000mah 18650 battery and the working principle of the protection circuit.
Lithium batteries are divided into primary batteries and secondary batteries. Currently, the reserve rechargeable batteries of mobile phones mainly use non-rechargeable primary lithium batteries due to their small consumption, while the main batteries of mobile phones use rechargeable secondary batteries due to their large power consumption, that is, Lithium Ion Battery.
Compared with nickel-cadmium and nickel-metal hydride batteries, lithium batteries have the following advantages:
1. The working voltage of 3.7v 3000mah 18650 battery is higher, and the working voltage of each lithium-ion battery is much higher than Ni-cd and Ni-h rechargeable batteries.
2. High volume density, the relative volume density is twice that of Ni-h rechargeable batteries or Ni-cd batteries.
3. It has strong charge retention ability (that is, small self-discharge), and its volume damage is not significant after long-term placement.
4. The service life of the circulation system can be more than 500 times that of all normal uses.
5. There is no memory effect, there is no need to drain the remaining power before charging, and it is easy to use.
Due to the chemical properties of lithium batteries, the internal organic chemistry of electromagnetic and mechanical energy conversion is reflected in all normal applications, but under conditions such as overcharge, overcharge, overdischarge and overcurrent, the organic chemistry of the rechargeable battery may be Adverse reactions will seriously endanger the characteristics and service life of the rechargeable battery, and may cause a large amount of vapor, causing the working pressure inside the rechargeable battery to explode rapidly. Therefore, all lithium batteries must have a protection circuit to reasonably detect the charging and discharging conditions, and follow a certain Some standards turn off the charge and discharge control circuit to avoid damage to the battery.
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