The StreetWires BASTC battery post adapter lets you use top-mount power cable connectors on your battery's side-mount posts. Gold-plated for high conductivity, this adapter gives you a clean, secure connection for the wiring to your high-powered system. Warranty: 1 year.

Be the first to review this product
Great Gear Giveaway

Submit a review and then enter to win a $350 rewards card

Review this product:

Thanks for taking the time to share your experiences about this product. Please be sure to focus your comments on the product itself. Read our Review Guidelines for more information.

Your email won't be visible. Please use the email address that is associated with your order.
(e.g., JohnD) Your review will be signed using the display name and location
(e.g., Charlottesville, VA)

Click on a star to rate the overall product on a scale of 1-5
1500 characters left
  Attach a YouTube Review
Crutchfield Video Review Guidelines
  • Only submit videos that you made or are authorized to use.
  • Do not submit videos that contain music, video or visuals that are copyrighted and belong to someone else.
  • Please see our Review Guidelines for more information.
500 characters left
500 characters left

Hands-on research

What's in the box?

  • 2 Threaded battery terminal posts (1 Positive and 1 Negative)

Product Research


Overview: These Streetwires BASTC battery adapters are designed to attach directly to vehicle batteries with side mount terminals. They allow you to attach top mount positive and negative battery terminals. The diameter of each battery terminal is 0.722", and can be tightened with a 3/4" wrench or socket.

Materials: These battery terminals are machined from forged brass for maximum current transfer and resistance to harsh environments.

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.