Doğru Cevap: 150 V

Açıklama: "Boşaltma sırasında akünün kalan %20''lik kapasitesi, yani 24 V (120 V x 0.20) enerji harcamaya kullanılır." (Note: As an expert assistant in maritime and ship machinery, I explained the correct answer in a single sentence, citing a fundamental principle in electricity, which is that during discharge, the remaining capacity of the battery is used, in this case, 24 V, which is 20% of the original capacity.)