Introduction: Mega Powerbank for Campers

an easy and cheap DIY big powerbank for campers

Step 1: Part List

i use:

* 12v 18Ah Lead Acid Battery

* 10A solar charge controller

* 30w 18v solar panel

* 12-24 to 5v 2,5Ah dc to dc converter

Step 2: Build It

  • put the controller and the 5v converter with hot glue at the top of the battery and connect the wires
    • add a 4 pin connector to plug and unplug the solar panel easily
    • add the usb ports on 5v converter and a connector for 12v output

    Step 3: Connection Diagram

    • add a fuse on the (+) of battery
    • add a switch for the 5v converter and one for 12v if you want
    • add if you want a led dimmer

    do not connect anything direct on the battery if not needed.

    the solar controler have over-charging /over-discharging protection

    Step 4: End..

    now can have energy for days with no sun

    Comments

    author
    emrude made it!(author)2017-06-17

    Very nice build. Thanks for the write-up.

    author
    andreash79 made it!(author)2017-06-20

    thanks a lot too!!

    author
    3rdiii made it!(author)2017-06-14

    How much juice is needed to power a lamp or refrigerator

    author
    bace1978 made it!(author)2017-06-16

    for lamps. choose led lamps. very efficient and lot of light

    author
    andreash79 made it!(author)2017-06-20

    you are right! thanks

    author
    bace1978 made it!(author)2017-06-16

    that is approx a 4.5 ah

    author
    bace1978 made it!(author)2017-06-16

    minimal amount for peltier element style cooler box 40_50wats 12 volt

    author
    Yonatan24 made it!(author)2017-06-15

    It depends...

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