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  1. #1
    Join Date
    Mar 2013
    Location
    Anchorage, Alaska
    Posts
    591

    Default Portable DC Source For Testing, Instead Of Hauling A Car Battery.

    Sometimes I would need a 12V battery source. I either go to the car or haul out a spare battery that might have gone low charged. I would think there should be a very portable, palm-size unit I could plug into the AC outlet, or an adapter to my battery charger to produce a 12V power. Hope I asked this question correctly.

    Cheers.
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  2. #2
    Join Date
    Apr 2017
    Location
    San Diego
    Posts
    182

    Default

    Search Amazon for "power probe." Hundreds of these on the market now with varying levels of functionality. Power Probe is a name brand, so you may find a lot of this one brand, but there are a lot of less expensive knock offs.

    Brett
    Last edited by Brett San Diego; 03-20-2023 at 12:58 PM.

  3. #3
    Join Date
    Jul 2007
    Location
    Toronto, Canada
    Posts
    605

    Default

    Quote Originally Posted by Oka View Post
    Sometimes I would need a 12V battery source. I either go to the car or haul out a spare battery that might have gone low charged. I would think there should be a very portable, palm-size unit I could plug into the AC outlet, or an adapter to my battery charger to produce a 12V power. Hope I asked this question correctly.

    Cheers.
    Portable jump starters (aka battery boosters, emergency boosters, battery jumpers, jump boxes) often have a 12V outlet. Some of them also have inverters, flashlights, USB recharging ports, tire inflators, etc. Of course, most (there are some that use ultra caps) are just an AGM battery in a box although Lithium Ion batteries are now taking over. Here is one brand with a range of models: https://no.co/products/power/boost

  4. #4
    Join Date
    Feb 2010
    Location
    Virginia Beach
    Posts
    4,130

    Default

    Portable battery charger if the work is being done in the car. Something like this:

    https://www.amazon.com/Schumacher-SC...dp/B0797KK3N2/

    Power supply if the work is being done on a bench. Something like this:

    https://www.amazon.com/gp/product/B000Y8GFIE/
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