How to buy a large-capacity lithium-ion battery?

At present, most electric vehicle manufacturers process electric vehicle battery voltages; 36V, 48V, 60V, 72V. But the battery capacity is more; 10AH, 20AH, 30AH, up to 400AH, or even larger, theoretically infinite, but as an electric bicycle, 100A is big enough, and it is enough to run takeaways. Choose the size of the capacity according to your actual needs. There are several important indicators for selecting lithium-ion batteries: 1. Safety: 2. Charge and discharge times, 3. High and low temperature charge and discharge characteristics, 4. Volume weight, 5. Battery energy density. Combining the above analysis, it is a good choice to use lithium iron phosphate batteries in the south, because lithium iron phosphate is afraid of cold, and the charge and discharge current at minus 10C is 50% of that at 25C, which means that the ambient temperature is 25C. When you can ride 40KM, but when the ambient temperature is minus 10C, you can only ride 20KM. There is no very cold weather in the south, and the coldest is just 1-2 degrees below zero. The extreme weather didn't last a few days, so it didn't matter. The most important thing is that the lithium iron phosphate battery is very safe, which is much safer than the ternary lithium ion. The life of lithium iron phosphate battery is 1.5 times that of ternary lithium ion battery. Ternary lithium-ion batteries are suitable for northern regions. Ternary lithium-ion is also afraid of cold, but it is much better. When the ternary lithium-ion is below minus 30C, the charge and discharge current attenuates sharply. But the ternary lithium ion is afraid of heat and is easy to run out of control, causing high temperature, fire and explosion. So do not expose to the sun in hot weather. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: What is the principle of the high price of lithium iron phosphate battery pack?