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LED Power supply?

Discussion in 'Power Electronics' started by Brandmark, Oct 3, 2020.

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  1. Brandmark

    Brandmark

    3
    0
    Oct 3, 2020
    Hello,
    Starting a new project using 4, 5m LED light strips 12V 2A wall plugin transformer, I want to swap over to 12V rechargeable battery to supply lights for 8 to 10 hours.
    I need to know what direction to go to figure out Volt and Amp to accomplish my goal.
    Thanks Brent
     
  2. Bluejets

    Bluejets

    4,217
    894
    Oct 5, 2014
    You need to supply the current drain to work out an equivalent battery capacity.

    If it currently takes 2 amp for 10 hours (20Ah) then probably a 12v car battery.
     
  3. Brandmark

    Brandmark

    3
    0
    Oct 3, 2020
    Thank you, a great place to start, I was not sure if hooking up something with a greater amount of Amps would just fry it not knowing much about DC usage.
     
  4. Audioguru

    Audioguru

    2,926
    654
    Sep 24, 2016
    A load does not take more current than it needs. The low current clock in your car is not fried by being powered from the car's extremely high current battery.
     
  5. Brandmark

    Brandmark

    3
    0
    Oct 3, 2020
    Very well said to someone just learning how it works. Thanks
     
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