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PORTABLE BATTERY BOX / POWER SUPPLY

Discussion in 'Home Brew' started by firerunner, Feb 8, 2018.

  1. firerunner

    firerunner Active Member

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    I have done some portable radio work but usually around AC power / and generator. I want to do some QRP work either back packing out in my 4x4 or out on the quad. I don't want to risk running the battery down on the 4x4 or the quad, so i decided to build a small battery box. Now this is not an original idea a lot of us have done this before. I got my idea from a buddy who bought a box from POWERWERX and I built mine a lot like theirs but i used a smaller box to be more compact.

    I started the build with a ammo box from Harbor Freight, on special the cost 3.99. I cut some bracing out of the lid to mount parts that follow. I ordered a volt meter, usb charging port and a 12v power socket from Amazon. This came with a 3 hole face plate and the wiring with fuses. Cost 19.99. I then bought a battery from BIOENNO POWER. The battery is a 12V, 9Ah LFP Battery (PVC, BLF-1209A) cost is 99.99 plus 6.00 shipping. Bioenno Power got the battery to me in two days by UPS. They did a great job of packaging. I also ordered a charger for the battery NOTE these batteries take a special charger cost 19.99. The battery weighs just 2.6 pounds and comes with Anderson Power Poles installed which just so happens that what i use for battery connectors.

    Box with custom go fast stickers LOL.
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    Hope you like the build.


     
    PA770 and 309hellinois like this.

  2. firerunner

    firerunner Active Member

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    [​IMG]
     
    Shadetree Mechanic and binrat like this.
  3. Moleculo

    Moleculo Administrator
    Staff Member

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    Link to the charging panel you used?
     
  4. firerunner

    firerunner Active Member

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    Moleculo, are you talking about a solar panel? I don't have a solar panel at this time. I did do a on air test the other day. Ran the radio for 6 hours making contacts at 5, 10, 20 and 40 watts but a lot of the time was listening but did have 3 or 4 15 min qso's. starting voltage was 13.3 at the end it was 12.9 and i charged my phone from 2%to 85%.

    https://www.bioennopower.com/collec...cts/copy-of-12v-9ah-lfp-battery-pvc-blf-1209w

    Thats the battery and if you click on the battery only it will list the charger if thats what you wanted to know.
     
  5. kopcicle

    kopcicle Well-Known Member

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    Four stroke line trimmer head > mini alternator > LiOn cell > direct drive or line and pulleys .

    Dedicated 12V power source :)

    I made one for track days. Ended up making a dozen.
     
  6. Riverman71

    Riverman71 Sr. Member

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    Cool.
    Can do portable backyard HF and keep the lawn looking nice.
     
    firerunner likes this.
  7. Shadetree Mechanic

    Shadetree Mechanic 808 On The North Side of Dover

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    Do you have any pictures?
     
  8. PA770

    PA770 W9WDX Member

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    Nice box. My setup was 20ah with option 10amp solar charge controller with MC4 connectors on outside of box. I used a 3 pin polarized aircraft style plug.. 50 call plastic ammo can.. I always date the batteries.. I also have a metal fat 50cal can with dual 7ah batteries that my KW TMv-71a actually bolts into with external antenna connector. I can hook together and end up with 34ah.

    IMG_20170702_084627.jpg
    IMG_20170702_084652.jpg
     
  9. firerunner

    firerunner Active Member

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    Great build K3ACZ, looks like about the same size box. I started to put my connections on the side. Have you used it and how long does the battery last? I need to post a picture of the inside of my box , totally forgot to do that.
     
  10. PA770

    PA770 W9WDX Member

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    Never ran full out to test. Based on just AH and using 50% usage as not to kill battery.. Figure 1 hr of straight deadkey (conservative) at 50w if running in 34ah configuration.
     

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