The Pacific Automotive Network 24V ternary lithium battery is 7 string. Although electric vehicle batteries rarely discharge at 1C, the capacity of their cells is often more than 20ah, and a current of 0.2C can reach 4A.
1: It’s very simple. Connecting in series increases the voltage and connecting in parallel increases the capacity. The standard voltage of ternary lithium is 3.7 V. When fully charged, it is 4.2 V. Three strings are 48 V, four are needed. three strings. However, lead-acid electric vehicles When the battery is fully charged, 58V is the best, so the lithium battery also needs to reach about 58V, so 14 strings are needed to reach 58.8V, 14 times iron. lithium is fully charged at around 3.4V, which requires four strings of 12V, and 48V requires 16 strings. By analogy, 60 V requires 20 strings of the same model and msame capacity. Two 10 Ah batteries connected in parallel make 20 Ah to 48 V ternary lithium. +14 10ah batteries. The last 14 series connected in parallel form a 48v20ah lithium battery Answer
2: It's actually very simple. For example, 48 volts refers to voltage. Ternary lithium batteries generally refer to 48. divided by 3.7. This way, thirteen and fourteen strings are both counted as 48 volts. Ten three strings are charged with a 54.6 volt charger and fourteen strings are charged with a 58.8 volt charger. As for 20 Ah, it refers to the capacity of the battery. If a single 18650 battery cell has a capacity of 2000 mAh, it will be 2 Ah each. Ten cells together will be 20 Ah and the entire battery will be. 14 String multiplied by 10 cells = 140 cells.
The same goes for 60 volts. Usually 16 to 17 strings are counted as 60 volts. For example, the capacity of a single battery cell at 60 volts and 20 amps is 2,000 mA, or 16-. 17 multiplied by 10, 160 -170 cells. It should be clear from here that the total voltage of an iron-lithium battery is divided by 3.2. For example, a 48 volt iron-lithium battery refers to 15-16 strings. The algorithm is the same, except iron-lithium has several others. Strings of batteries as ternary lithium. Another. The charging voltages of lithium iron and ternary lithium are also different. Please communicate with the boss when purchasing.
(Photo/Text/Photo: Pacific Automotive Network Q&A)
There are many brands of 24V intelligent lithium batteries on the market. Among many brands, Kaerku is quite remarkable. famous. They recently launched a 24V start-stop intelligent lithium battery for heavy-duty trucks, which has attracted a lot of attention, mainly becauseon its large capacity and long lifespan. custom special quality. Low temperature battery cells have multiple protection functions such as ultra-low temperature, anti-puncture, high temperature resistance and anti-collision, making safety safer.