Lead-acid battery consistency screening method

The invention discloses a lead-acid battery consistency screening method, which comprises the following steps of: measuring and calculating alternating-current impedance data of at least two lead-acid batteries under alternating-current excitation current in the same test scene; and calculating the consistency of the alternating-current impedance data of any two lead-acid batteries, and if the alternating-current impedance data are consistent, determining that the two lead-acid batteries are consistent. The matching condition of the batteries is obtained only through one round of charging, the lead-acid batteries which can be matched into groups are quickly screened, the matching method considers the capacity difference of the batteries and also considers the impedance difference during operation, and the scientificity and accuracy of the consistency of the lead-acid battery monomers are ensured. 一种铅酸电池一致性筛选方法，包括以下步骤：在相同的试验场景下测算至少两个铅酸电池在交流激励电流下的交流阻抗数据；计算任意两个铅酸电池的交流阻抗数据的一致性，若所述交流阻抗数据具有一致性，则该两个铅酸电池具有一致性。仅通过一轮充电