Complex sentence: In spite of lack of ammunition, unreliable fuses, electrical batteries that discharged too quickly, central sights that fell apart due to the shock waves from firing, lack of training and more, the batteries claimed to have shot down five or six German aircraft.
Split into simpler sentences: In spite of a lack of ammunition, unreliable fuses, electrical batteries that discharged too quickly, central sights that fell apart due to the shock waves from firing, lack of training and more. The batteries claimed to have shot down five or six German aircraft.