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Portable Power Station Parameters 5: Charge and Discharge Current

Charge and Discharge Current

This blog is about the Charge and Discharge Current of the portable power stations.

During the discharging process in a battery, electrons flow from the anode to the cathode through the load, to provide the required current and the circuit is completed in the electrolyte. During the charging process, an external source supplies with the charging current and the oxidation takes place at the positive electrode while the reduction takes place at the negative electrode. For practical purposes, the term C-rate is used to express the charge or discharge current relative to the rated capacity. For example, a discharge rate of 1 C means that the battery will be fully discharged in 1 h.

Which battery types can tolerate constant charging and discharge of high currents?

Lead-acid and NiCad both have the capability of large currents, both while charging and discharging. Some of the lithium-ion batteries are also capable of large currents while still providing long lifetimes. Not all lithium battery chemistries are capable of large currents

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