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This is test
Fuel, like diesel and propane, is too heavy for the Mars mission to carry much, if any, of it. So power is likely to be provided by a solar array instead of a generator. The energy collected from the solar arrays will be stored in large battery banks. Most of the circuits will have a load of about 12 Ω. If 4 A is needed to run the equipment, what voltage does the battery bank need to be?