Ignitions and Electrical› Charging Systems

DieHard

Battery Terminal Safety Switch

$27.49

SKU: 45148

In Stock
In Stock
Ships by Sep 9
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Beginner — under 30 min

Overview

The DieHard 45148 is a battery terminal safety switch designed for side post batteries. It features a quick disconnect function that eliminates battery drain by allowing for safe disconnection without removing the battery cable. This single terminal offers up to three wire connections and a vertical drive clamping feature for easy reach, making it ideal for batteries with infrequent use.
Show original supplier description
The DieHard 45148 is a battery terminal safety switch specifically engineered for side post batteries. This accessory simplifies battery maintenance by providing a quick and safe disconnect feature. Its integrated circuit-breaking switch allows you to easily shut off power without the need to remove battery cables, effectively eliminating parasitic battery drain. This is particularly beneficial for vehicles or equipment that are not used regularly, ensuring the battery remains charged. Constructed with brass terminals and a nickel-plated switch lever, this battery disconnect switch is built for durability. The unit offers the capability for up to three wire connections and includes a vertical drive clamping mechanism for convenient access and secure attachment. This product is covered by a 30-day warranty. One review also noted that the disconnect arm could be shorter, requiring careful attention during connection and disconnection. Additionally, a user recommended that the product specifications, such as the amperage rating (e.g., 250 amps), should be clearly listed.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandDieHard
Part Number45148
CategoryIgnitions and Electrical

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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