Long life Battery Pack

Discussion in 'The Projects Forum' started by bobdylonxxx, Jan 24, 2011.

  1. bobdylonxxx

    Thread Starter New Member

    Jan 24, 2011
    3
    0
    Hello.

    I'm not really experienced with electronics outside of pc's and have a little project that needs doing for work. I could do with some help!

    For the background, I will be having a 15" digital photo frame inside a sealed display stand at a show and unfortunately will not have mains access or the ability to change batteries during the day.

    there is also very limited space inside the stand.

    what would be the best way to keep it powered for 9 or so hours straight?

    Thanks in advance
     
  2. kubeek

    AAC Fanatic!

    Sep 20, 2005
    4,670
    804
    kinda depends how much power it needs, but a 15" lcd could take 30-40W. Probably some lead-acid battery to keep it on for that long.
     
  3. bobdylonxxx

    Thread Starter New Member

    Jan 24, 2011
    3
    0
    I'm working around the idea that it will be on a 9v power lead
     
  4. blueroomelectronics

    AAC Fanatic!

    Jul 22, 2007
    1,758
    98
    No chance with a teeny 9V battery.
     
  5. bobdylonxxx

    Thread Starter New Member

    Jan 24, 2011
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    would there be any way to run say 4/6 9v lithium's simultaneously and have a something regulating how much there putting out so its effectively hooked up to 6 9v lithiums ?
     
  6. blueroomelectronics

    AAC Fanatic!

    Jul 22, 2007
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    First you need to figure out what the power requirements are of the photo frame are.
     
  7. wayneh

    Expert

    Sep 9, 2010
    12,103
    3,038
    +1

    Impossible to speculate without that info. Try to find two things: 1)What does the frame's normal AC adaptor supply say on it - it should report what the capacity of its output is, and maybe what it's AC power requirement is. 2) The frame itself may also indicate its power needs, likely near where the adaptor plugs in.

    An ideal finding would be that the frame requires 12v DC, which would make a lead battery a good option. A tractor or motorcycle battery might be big enough. Give up the 9v battery plan. I think it's very unlikely to work.
     
  8. Lightfire

    Well-Known Member

    Oct 5, 2010
    690
    21
    I purchased 2 9 volts battery and it don't even make my halogen lamp brigther. Yes, a lead-acid battery would be great. :)
     
  9. wayneh

    Expert

    Sep 9, 2010
    12,103
    3,038
    It'd be great only if it works. You need the information on what the panel requires to work properly. If it needs AC, you might need a battery AND an inverter.
     
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