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How many watts are required to start a 7 HP 12 VDC motor you want to start the motor on solar panel?
Wiki User
∙ 9y ago
For calculation purposes 1 HP is equal to 746 watts. So you have a total of 746 x 7 = 5222 watts. The amperage will be A = W/V = 7222/12 = 435 amps. You can not start the motor directly off of the solar panel. You would need a large 12 VDC parallel connected battery bank to obtain the amperage capacity to start the motor. The solar panels would be connected to the battery bank and used to charge the batteries after the start.
Wiki User
∙ 9y ago
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