XS Power 558 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.
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A high-performance car audio system deserves equally high-performance connection hardware, and the XS Power 558 battery terminal hardware delivers that at the battery post. Designed for XS Power AGM batteries, this top post terminal adapter gives ring terminals and battery cable lugs from large-gauge power cable runs a secure, precisely fitted home. Resistance at this connection point directly affects the available power in your system, making quality terminal hardware a genuine performance upgrade in any build.
The 558 is a reliable choice for daily-driver builds, show vehicles, and powersports applications where dependability under sustained load is the priority. It reflects the attention to detail in the broader XS Power hardware lineup, giving installers confidence that their car audio battery hardware is engineered to the same standard as the batteries it accompanies.
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
