DM-I blade battery

Voltage -25.6V

Electricity -1.22kWh, with 1.22kWh divide by 25.6V, obtained a single battery capacity of 47.7AH, which corresponds to the capacity identification of the battery pack.
A simple arithmetic question, how did the blade battery come from? In fact, the internal blade battery should be connected by 8 battery cells, because the standard voltage of lithium iron phosphate battery cells is 3.2V, and 3.2V is equal to 25.6V by 8 (series).
So, how did the battery pack 384V voltage come from? In fact, it is also very simple. The entire battery package is connected in series by 15 knots of the blade batteries. 25.6V is equal to 384V by 15.6V.
It should be noted that the unit of 47.7AH, this parameter also represents the current base of the battery charging and discharge power, which is 47.7 amp. Use a constant 47.7A discharge for 1 hour, and the battery is put from full power to 0; 1 hour is charged with constant 47.7A, and the battery can be charged from 0 to full power. The 1C multiplier charging, the corresponding charging current is 47.7A. In the same way, the 2C charging current is 95.4A. This current can be filled with the battery within half an hour, provided that the battery can withstand such a large charging current.
For 3.3kW slow charging, the conversion of the DC charging current is about 8A (reduced loss). This charging current is equivalent to 0.17C. It can be filled with the battery from 0 to 100%for about 6 hours. This charging multiplier is a very safe value.
For the fast charging of the DM-I model, the parameters given by the rated power manufacturers are 18kW, and the charging current is 1C in addition to 384V. This charging multiplier is 1C. Then it can be inferred that the manufacturer believes that the safety fast charging rate of this blade battery is 1C.
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