Ampire PK-PLUS - Battery terminal, positive pole

Ampire PK-PLUS 

AMPIRE brass battery terminal for the positive pole according to DIN-EN 60095-2 (19.5mm) with red silicone cover

BRASS vs. ZINC
Brass is, in the truest sense of the word, a more ductile and malleable metal made of over 50% copper and approximately 40% zinc. Compared to cheaper zinc alloys, brass is significantly more stable under pressure and much more resistant to cracking, which in turn contributes to its longevity. In mobile electronics, brass is unbeatable in terms of appearance, feel, and value.