Can a battery be charged when being discharged?
Answer: If the charging current is higher than the discharge current, it is possible to charge the battery when being under load. When charging the charging current will be first consumed by the load and only the current in extra will be used to charge the battery: Example: the discharge current is 4 Amps, the charging current is 5 Amps. The effective charging for the battery will be the difference: 1 Amp.