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Compact 12v Power Supply

The compact 12v power supply is a portable power supply that converts the DC voltage of a car battery into usable AC voltage. This allows you to run devices such as laptops and cellphones that require AC voltage. Browse the top-ranked list of compact 12v power supplies below along with associated reviews and opinions. 

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  1. CyberPower - M175XUC 175 W Power Inverter - Black

    SKU: JX8P9XGZHV

    Backup power source for road trips...Bought this for emergency charging of dead electronics of the car's power system. Our car has a high watt output 12v plug in the cargo area. ...I plug in my laptop,...

    Product Description

    A compact black power inverter that converts 12V DC to AC, featuring dual outlets and USB charging ports.
    See all Power Inverters
    Your price for this item is $40.99
    Save $4
    The previous price was $44.99

  2. Metra - Heise 12V Power Supply - Multi

    SKU: J7RX7YJ2X2

    A 12v power supply is randomly hard to find - this fits the bill....Power supply...Found this power supply connection at best buy work very good

    Product Description

    A lightweight multi-color 12V power supply delivering 2 amps for single-color LED lighting systems.
    See all Lighting
    Your price for this item is $22.99

  3. PAC - 12V DC Adapter - Black

    SKU: J2VK4T5F99

    This item is an easy way to add a 12v power outlet....Necessary for an intermittent power supply...My vehicle had only constant on power supplies; this adapter was installed behind my dash side panel...

    Product Description

    A universal black 12V DC adapter that adds a power outlet and 10A fuse protection in vehicles.
    See all Cell Phone Car Chargers
    Your price for this item is $9.99

  4. Jackery - Explorer 300 v2 (288Wh) Portable Power Station with 40W Solar Panel, All-in-One Solar Generator for Outdoor and Travel (288 Wh Capacity) - Black

    SKU: J3GW9H69F2

    Product Description

    A portable black power station with 288Wh capacity and 40W solar panel for reliable outdoor charging.
    See all Solar Generators & Power Banks
    Your price for this item is $349.00
    Save $40
    The previous price was $389.00
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In-store pricing may vary. Prices and offers are subject to change. © 2026 Best Buy. All rights reserved. BEST BUY, the BEST BUY logo, the tag design, and MY BEST BUY are trademarks of Best Buy and its affiliated companies.