The upper limit of the charging cut-off voltage of 48V10A lithium battery is 3.65V, and the charging cut-off current is 0.02C. The voltage platform is close of 3.2V. 48/3.2=15 strings*3.65=54.75V In order to ensure battery life, it is recommended that the charging cut-off voltage be 54V.
The discharge cut-off voltage of a single string is 2.5V, so the discharge cut-off voltage of the 48V module is 15 strings * 2.5V = 37.5V , which is a conservative 38 V. Because it is a module, considering the voltage unbalance of a single string, a single string voltage detection needs to be added... It depends on the IC parameters of the protection board that you choose. The cut-off voltage of different IC protection boards is different.
You need to find the datasheet of the selected integrated circuit, which contains the cutoff voltage of a single cell, and then themultiply by the number of strings in the battery to get the cutoff. tension.
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With the continuous development of lithium battery industry , more and more Lithium batteries are being used in more and more devices.
In addition to mainstream lithium polymer batteries on the market, ternary lithium batteries and lithium iron phosphate batteries hold a relatively high market share.
Over time, the market share of ternary lithium batteries has gradually exceeded that of previously mature lithium iron phosphate batteries. Generally speaking, the cell voltage of ternary lithium batteries is 3.7 volts, and that of ternary lithium batteries. Lithium iron phosphate batteries The core voltage is 3.2 volts.
For a small number of batteries, the price of batteries per bedhium iron phosphate may be lower than that of ternary lithium batteries, but for large capacity lithium batteries, ternary lithium batteries are even more cost-effective. . However, at present, the market price of lithium batteries is relatively chaotic, with high and low quotes in the market, so everyone should pay attention to it when purchasing products.