# Install Bay Battery Side Post Adaptor Brass 10 Pack- BT305-10 — resale value

Source: JunkPal price guide — https://junkpal.ai/products/install-bay-battery-side-post-adaptor-brass-10-pack-bt305-10-b00xjk3qd6

**Install Bay Battery Side Post Adaptor Brass 10 Pack- BT305-10** sells for about **$31.99** new or sealed, based on real closed eBay sales.

Live listings and the full sold-price history are on the page: https://junkpal.ai/products/install-bay-battery-side-post-adaptor-brass-10-pack-bt305-10-b00xjk3qd6

## Value

| Condition | Value (USD) |
| --- | --- |
| New / Sealed | $31.99 |

Values are medians of real closed eBay sales, updated 2026-07-17. They are estimates for reference, not offers or appraisals — condition, completeness and edition move them a lot, so compare against the sold listings before pricing anything.

## Check the market

- [Sold listings on eBay](https://junkpal.ai/api/go?to=https%3A%2F%2Fwww.ebay.com%2Fsch%2Fi.html%3F_nkw%3DBay%2520Battery%2520Side%2520Post%2520Adaptor%2520Brass%2520BT305-10%26LH_Sold%3D1%26LH_Complete%3D1%26mkcid%3D1%26mkrid%3D711-53200-19255-0%26siteid%3D0%26campid%3D5339166094%26toolid%3D10001%26mkevt%3D1%26customid%3Dmd-sold&p=md-sold) — the closed sales these medians are computed from
- [Live listings on eBay](https://junkpal.ai/api/go?to=https%3A%2F%2Fwww.ebay.com%2Fsch%2Fi.html%3F_nkw%3DBay%2520Battery%2520Side%2520Post%2520Adaptor%2520Brass%2520BT305-10%26mkcid%3D1%26mkrid%3D711-53200-19255-0%26siteid%3D0%26campid%3D5339166094%26toolid%3D10001%26mkevt%3D1%26customid%3Dmd-live&p=md-live) — what sellers are asking right now

eBay links are affiliate links: JunkPal may earn a commission at no cost to you.

## Details

| Field | Value |
| --- | --- |
| Brand | Install Bay |
| Category | Car Electronics |

## About

This product is the Install Bay Battery Side Post Adaptor Brass, model BT305-10, sold as a 10-pack. It falls under the Car Electronics category.

This adaptor is sought after by individuals needing to connect or adapt battery posts in their vehicles.

The resale value of this item is influenced by the condition of the brass adaptors and whether the complete 10-pack is present.

## FAQ

**What is the Install Bay BT305-10?**

It is a 10-pack of Brass Battery Side Post Adaptors made by Install Bay, categorized under Car Electronics.

**What affects the resale value of this adaptor set?**

The condition of the brass adaptors and the completeness of the 10-pack are the primary factors driving its resale value.

**Where does this item fit in the market?**

This adaptor is designed for use in automotive applications, fitting within the Car Electronics market.

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Full price guide: https://junkpal.ai/products/install-bay-battery-side-post-adaptor-brass-10-pack-bt305-10-b00xjk3qd6
How these values are computed: https://junkpal.ai/methodology
Cite as: "JunkPal price guide value as of 2026-07-17, based on real sold listings (junkpal.ai)"