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Case I_max: Current that the battery can deliver

Given a battery type and operating conditions, find the maximum peak current.

Load scenario

Total duration in s 1...120 s Min. voltage in V 7.5...10.8 V

Equivalent profile: U_min = 9.00 V for t_eff = 30.00 s U_min,30.00s = 9.44 V I_max,5s = 150 A, I_imax,30.00s = 123 A,

Battery condition

I_cc rating in A 100...1000 A

Ageing condition BoL / EoL

Temperature in °C -40...40 °C State of Charge in %Cn 30...100 %Cn

Result

With the given parameters, the battery would deliver a maximum current of I_max ≈ 123 A (good accuracy).

Can you modify the minimum battery voltage?

How would another I_cc rating perform?

Can you modify the minimum battery temperature?

Can you modify the minimum state of charge?

These diagrams show how the result changes with each parameter. Notice the strong impact of minimum allowed peak voltage – lowering it by 0.5 V can significantly reduce battery size requirements.

––––– Good accuracy ––––– Moderate accuracy – – – Invalid range

Select diagram type: