what is a good safe voltage for led light strip

Discussion in 'The Projects Forum' started by Arcamax, May 8, 2015.

  1. Arcamax

    Thread Starter Member

    May 5, 2015
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    i want to make a picture tracing light box/board and i was planning to use batteries to power it instead of a dc power adapter and i need to know what is a good battery that wont fry the strip.
     
  2. Dodgydave

    AAC Fanatic!

    Jun 22, 2012
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    you need to know what voltage and current the led strip needs, then choose a battery with the capacity that will last.
     
  3. Arcamax

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    May 5, 2015
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  4. Dodgydave

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    Last edited: May 8, 2015
  5. Arcamax

    Thread Starter Member

    May 5, 2015
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    like i said i want make a light box/board to trace with, so maybe a couple(2) hours for sure if possible more.
     
  6. Dodgydave

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    Jun 22, 2012
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    looks like the leds take 1.2amp per strip, so 2.5amps total, for two hours is a 5ah battery, go for a 7ah 12v battery.
     
  7. Arcamax

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    May 5, 2015
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  8. mcgyvr

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  9. Arcamax

    Thread Starter Member

    May 5, 2015
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    oh yeah sorry lol, didn't see the "m" on mAh.
    Anyway isn't there anything more portable i can get.
     
  10. Dodgydave

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    Jun 22, 2012
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    reduce the leds, or power consumption and then you can use a smaller battery.
     
  11. Arcamax

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    May 5, 2015
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    oh yeah ok then, i was thinking of cutting sections and putting a little bit of wire in between each section of 3 led's possibly reducing some led's. About 1"-2" of wire
     
  12. Arcamax

    Thread Starter Member

    May 5, 2015
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    what about a power bank?
     
    Last edited: May 8, 2015
  13. OneFierceSon

    New Member

    May 5, 2015
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    You could use something like this http://www.hobbyking.com/hobbyking/store/__9184__Turnigy_5000mAh_3S_20C_Lipo_Pack.html
    Lithium Polymer (Lipo) batteries will be the lightest you will find for your application and they come in all different shapes and sizes.They can be a little pricey though and they need a quality charger to go with them. You would need a 3s Lipo which just means it has 3 separate 3.7 volt batteries inside it. They are labeled 11.1 but when they are fully charged they are 12.6 volts, which
    is right around what your bulbs need. And remember you can always run multiple smaller batteries in a parallel configuration which will raise your amperage but your voltage will not be affected.
     
  14. Arcamax

    Thread Starter Member

    May 5, 2015
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    i'm still looking for something like this...
    but what if i took apart a dc adapter or other power supply, is there anything i can get
     
  15. Arcamax

    Thread Starter Member

    May 5, 2015
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    Last edited: May 11, 2015
  16. bertz

    Member

    Nov 11, 2013
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    No and No! You need gobs of current and small batteries will not give you gobs of current for any length of time.

    Why cant you use an AC power supply? Is portability the issue?
     
  17. Arcamax

    Thread Starter Member

    May 5, 2015
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    Yeah i know i'll have to use an AC power supply, it's just that its nice when people have things that are portable... you know right.
    Is this good or too low Amps http://www.be-electronics.com/product_p/68-121a-1.htm
     
  18. Dodgydave

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    Jun 22, 2012
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    Last edited: May 12, 2015
  19. Arcamax

    Thread Starter Member

    May 5, 2015
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    urgh dont you just hate it when they have the wrong pictures. lol
     
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