If it were me I'd replace those battery terminal ends that have the wire clamps with manufactured cables. Those ends work as a quick fix, but tend to corrode and get loose over time.
Mike B
Mike Boteler
1956 Chevy 3100 Resto Rod 1952 Willys M38 Army Jeep 1983 Jeep CJ7 Laredo 1984 Jeep CJ7 +++++ Silver Spring, MD