

XS Power 556 Battery Terminal Hardware
Many in-stock orders ship within 1-2 business days, but timing varies by item. Custom, built-to-order, oversized, special-order and supplier-direct products may need extra processing time. Free shipping applies to qualifying orders over $99 in the contiguous US. Approved returns may be subject to a restocking fee.
Most products are covered by the manufacturer's warranty against defects. Damage from over-powering or improper installation isn't covered — we'll help coordinate any valid claim.
Tell us your vehicle, subwoofers and electrical setup and our team will help you match the right gear. Reach out before you buy.
Every solid car audio build has a starting point, and the XS Power 556 battery terminal hardware is designed to make that starting point as strong as possible. This terminal adapter bridges the gap between an XS Power AGM battery and the heavy ring terminals and battery cable lugs used in high-power systems, creating a low-resistance top post terminal connection that stays secure through heat cycles and vibration alike.
Whether your priority is winning an SPL event or simply keeping a loud daily driver from flickering its headlights, the right car audio battery hardware at the source is essential. The 556 brings the fit and finish expected from XS Power accessories, giving your installation a professional look and reliable performance from the very first connection.
Authorized XS Power dealer at JS Ultimate Sounds. Free shipping on orders $99+.
PROP 65 WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer or birth defects or other reproductive harm. Wash hands after handling.
For more information, visit www.P65Warnings.ca.gov


