Our precision-engineered metal end caps are specifically designed for use in AA (5#) thiab AAA (7#) roj teeb sib dhos, serving as the top and bottom terminals. Made from high-quality nickel-plated steel or custom alloys, these battery caps provide excellent conductivity, corrosion kuj, and mechanical strength for high-performance battery applications. Cov yam ntxwv tseem ceeb: Haum rau AA (5#) thiab AAA (7#) standard sizes Material: …