Car Battery Terminal Post Shim Adapter Converters – 2 Pairs

Ensure a Secure Battery Connection Every Time

Keep your vehicle's electrical system running smoothly with these Car Battery Terminal Post Shim Converters. This 2-pair set allows a positive battery terminal to fit securely onto a negative battery post — a simple, effective solution for mismatched terminals or worn battery posts that no longer hold a tight connection.

Made from durable metal construction, these adapters are built to handle the demands of automotive environments. Whether you're dealing with a terminal that's too large for the post or a battery post that has worn down over time, these shims create a snug, reliable fit without the need for expensive replacements.

Key Features

• Converts Positive to Negative: Allows a positive battery terminal to fit a negative battery post seamlessly.
• Fixes Loose Connections: Ideal for worn battery posts where the terminal no longer fits snugly.
• Durable Metal Construction: Built to withstand automotive conditions for long-lasting performance.
• Easy to Install: No special tools required — simply slide onto the battery post for an instant, secure fit.
• 2-Pair Value Set: Includes 2 pairs (positive and negative adapters) so you have spares on hand.

Specifications

• Material: Metal
• Height: 16mm / 0.63"
• Positive Outer Diameter: 19mm x 17mm (Max. × Min.)
• Positive Inner Diameter: 14mm x 12.5mm (Max. × Min.)
• Negative Outer Diameter: 17mm x 15mm (Max. × Min.)
• Negative Inner Diameter: 12mm x 10.5mm (Max. × Min.)

Package Contents

• 2 Pairs × Battery Terminal Post Shim Adapters (Positive & Negative)

Made in Mainland China.

For more information on vehicle electrical safety and battery maintenance best practices, visit the U.S. Consumer Product Safety Commission (CPSC).

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Frequently Asked Questions

Q: What do these battery terminal post shim converters do?

A: These metal shim adapters allow a positive battery terminal to fit onto a negative battery post, bridging the size difference between the two. They can also be used to tighten the fit on worn or undersized battery posts so your terminal stays firmly connected.

Q: Are these adapters compatible with standard car batteries?

A: Yes. These adapters are designed to fit standard automotive battery posts. The positive adapter fits posts with an outer diameter of up to 19mm, and the negative adapter fits posts with an outer diameter of up to 17mm — covering the vast majority of standard car, truck, and SUV batteries.

Q: How many adapters are included in the package?

A: The package includes 2 pairs of battery terminal post shim converters, giving you both positive and negative adapters with spares available for future use.

Q: Do I need any special tools to install these adapters?

A: No special tools are required. Simply slide the appropriate shim adapter onto your battery post before attaching the terminal clamp. The adapter creates a snug fit that improves the connection without any complex installation steps.