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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.
source:Industry News release time:2023-11-27 Hits: Popular:AG11 battery
I believe the vast majority of consumers have heard that the lifespan of lithium batteries is "500 times", with 500 charges and discharges. Beyond this number, the battery will "die". Many friends, in order to extend the lifespan of the battery, charge it every time the battery is completely depleted. Does this really have an effect on extending the lifespan of the battery? The answer is no. The lifespan of a lithium battery is "500 times", which refers not to the number of charges, but to a charging and discharging cycle.
A charging cycle means the process of charging the battery from full to empty, and then from empty to full, which is not equivalent to charging once. For example, a lithium-ion battery only uses half its capacity on the first day, and then fully charges it. If this continues the next day, that is, charging half of it and charging it twice in total, it can only be counted as one charging cycle, not two. Therefore, it may usually take several charges to complete a cycle. Every time a charging cycle is completed, the battery capacity will decrease slightly. However, the reduction in battery capacity is very small. After multiple cycles of charging, high-quality batteries still retain 80% of their original capacity, and many lithium-ion powered products are still in normal use after two to three years. Of course, lithium-ion batteries still need to be replaced after their lifespan reaches the end.
The so-called 500 times refers to the manufacturer achieving about 625 charging cycles at a constant discharge depth (such as 80%), reaching 500 charging cycles.
(80% * 625=500) (ignoring factors such as reduced lithium battery capacity)
Due to various impacts in real life, especially the discharge depth during charging is not constant, "500 charging cycles" can only be used as a reference for battery life.
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