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Thread: Solar charging 12v batteries

  1. #1
    Member sako75's Avatar
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    Solar charging 12v batteries

    @gadgetman or anyone else in the know

    I have about 8 of the 12v 7Ah batteries I use with fluorescent tube lights for camping and powercuts such as last night

    I have a wall charger that I charge them twice a year or as about to use them

    Question is can I use one of these solar panels to charge them if I connect all the positive terminals in a line and negatives in a line?


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    dont try to charge lead acid in parallel (positives linked and negatives linked) do them separately.

  3. #3
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    Quote Originally Posted by sako75 View Post
    @gadgetman or anyone else in the know

    I have about 8 of the 12v 7Ah batteries I use with fluorescent tube lights for camping and powercuts such as last night

    I have a wall charger that I charge them twice a year or as about to use them

    Question is can I use one of these solar panels to charge them if I connect all the positive terminals in a line and negatives in a line?


    Attachment 54477
    You will struggle with a charger like that.
    sako75 likes this.
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  4. #4
    SiB
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    I bought the 10w output solar panels. Auto sparky said the 1.5w type were not up to it

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    Member sako75's Avatar
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    Thanks
    Might get another and just keep rotating them 1 at a time

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    Quote Originally Posted by sako75 View Post
    Thanks
    Might get another and just keep rotating them 1 at a time
    I'd also look at LED strip lighting. A lot more rugged than flouro and more energy efficient. Can easily hook up a cheap $3 controller to vary output too.
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    I bought an LED inspection wand sometime ago. Just had a look at it and still has cig lighter fitting on it job for tomorrow
    Wind is blowing its tits off again and already seen lines arcing outside

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    Quote Originally Posted by sako75 View Post
    I bought an LED inspection wand sometime ago. Just had a look at it and still has cig lighter fitting on it job for tomorrow
    Wind is blowing its tits off again and already seen lines arcing outside
    I made up a lead with spade connectors on one end and a lighter socket on the other so I can still use stuff in the car.
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    I've got candles, no hassles, just matches and much more romantic !
    Boom, cough,cough,cough

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    Quote Originally Posted by Maca49 View Post
    I've got candles, no hassles, just matches and much more romantic !
    Your hunting mates don't look at you sideways in the tent?
    jakewire, Beaker and Natatale like this.
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    Only if I sit on them to extinguish!
    jakewire likes this.
    Boom, cough,cough,cough

  12. #12
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    Quote Originally Posted by Maca49 View Post
    Only if I sit on them to extinguish!
    As long as you don't proceed to try and blow them out.
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    Caretaker jakewire's Avatar
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    Enough, surely.
    Shudder.
    Quis custodiet ipsos custodes?

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    There are some great little LED lighting kits that you can get that have everything you need in it to run off multiple power sources like car battery, cig lighter, 240v mains plus some kits come with long cables and dimmers etc which they are boht perfect for camping/ caravaning and emergencies plus they are allot lower current than the old fluro lights.

    Let us know if you would like some links to these kits.

  15. #15
    GWH
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    Quote Originally Posted by RedMoose View Post
    There are some great little LED lighting kits that you can get that have everything you need in it to run off multiple power sources like car battery, cig lighter, 240v mains plus some kits come with long cables and dimmers etc which they are boht perfect for camping/ caravaning and emergencies plus they are allot lower current than the old fluro lights.

    Let us know if you would like some links to these kits.
    Post some links please

 

 

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