

XS Power 551 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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The XS Power 551 battery terminal hardware makes a simple but important contribution to any car audio build: it ensures that the first electrical connection in your system is also the best one. Engineered for compatibility with XS Power AGM batteries, this terminal adapter gives ring terminals and heavy battery cable lugs a firm, secure seat on the top post. Loose connections at the battery are among the most common causes of unexplained voltage drop and amplifier clipping.
Whether you are upgrading the electrical system in a show vehicle or reinforcing a daily driver to handle a new amplifier stack, reliable car audio battery hardware at the battery post is essential. The 551 is a no-compromise answer to that need, built to the standards XS Power applies across its entire product line.
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


