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release time:2023-03-25
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1. The necessary conditions for calculating the capacity
A, discharge current
It is necessary to clarify the increasing or decrease and change of load current during the discharge process and its time change.
B. Discharge time
The maximum time of predictable load.
C. Minimum battery temperature
Pre -predetermine the temperature conditions of the battery places, and determine the minimum value of the battery.
It is generally 50C when it is set indoors, and is -50C when the room is indoors in particular cold areas. Use air conditioners to ensure that indoor temperature is used as the minimum temperature according to the actual temperature.
D. The minimum voltage allowed
The minimum voltage allowed (V/single -grid) = (the minimum voltage+the voltage loss of the voltage allowable allowed in the load)/number of series
2. Calculation formula for capacity
C = 1*[K1i1+K2 (I2-I1) ,,,,,,,,,, kn (in -n-in)]/L
C: 250C's rated discharge rate conversion capacity (AH) ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, is 10HR capacity.
L: The revision value used for changes in the capacity caused by the maintenance coefficient, the number of years, and the conditions of the use conditions. Generally L value is 0.8.
K: The capacity converting time determined by the minimum use temperature of the discharge time T and the battery, and the minimum voltage allowed.
I: Dry current
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