Q≥KIT/η[1+α(t-25)]
Where: Q -- battery capacity (ah);
K -- safety factor, taking 1.25;
I -- load current (a);
T -- discharge hours (H);
η - discharge capacity coefficient;
T - Minimum ambient temperature value of the actual battery location (Guangdong is considered as 5 ℃)
α - cell temperature coefficient (1 / ℃),
When the discharge hourly rate is ≥ 10, α = 0.006;
When 10 > discharge hour rate ≥ 1, α = 0.008;
When the discharge hourly rate is less than 1, α = 0.01;
Discharge capacity coefficient (η) table:
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