Question

Photovoltaic module has a open circuit voltage of 16v and short circuit current of 3a. This pv module is directly connected to a battery which has a no-load voltage of 12v. The battery is getting charged from the pv module. The most appropriate operating point is
 (13.5v, 2.7a)
 (14.5v, 1a)

Answer 1

Explanation:

Explanation:Before connecting the battery, calculate the charge voltage according to the number of cells in series, and then set the desired voltage and current limit. To charge a 12-volt lead acid battery (six cells) to a voltage limit of 2.40V, set the voltage to 14.40V (6 x 2.40). Select the charge current according to battery size. For lead acid, this is between 10 and 30 percent of the rated capacity. A 10Ah battery at 30 percent charges at about 3A; the percentage can be lower. An 80Ah starter battery may charge at 8A. (A 10 percent charge rate is equal to 0.1C.)

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Answer 2

Answer:

Before connecting the battery calculate the charge voltage according to the number of cells in series , and then set the desired voltage andcurrent limit . To charge 12 - volt lead acid battery (six cell) to a voltage limit of 2.40V st the voltage to 14.40V (6× 2.40). Select the charge current according to battery size. For lead acid this is between 10 an 30 percent of the rated capacity .A 10AH battery at 30 percent charges at about 3A; the percentage can be lower . An 80AH starter battery may charge at 8A . ( A 10 percent charge rate is equal to 0.1C.)

Explanation:

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