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**Charging current**

I am total stumped on the following to questions so if someone could show me how to get started that would be good thanks.

1) A storage battery rated at 120 ampere-hours is to be fully charged at constant current in 8 hours. Calculate the charging current.

2) A lead-acid battery is designed to give continuous discharge of 180 amperes for 5 hours. Calculate the time it will be discharged by a steady current of 220 amperes.

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