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Custom Battery Box Mod 5v

Battery Box Mod 5v

This is how I built my battery box for powering all my go pros around my yak.

Currently, powers 2x Go Pro Hero 3+ Back Editions and a Go Pro Fusion 360 action cam

I will do a Kayak Builds and Mods post, For my kayak wiring in another post.

So to start…

I decided to use two big batteries, I bought the biggest cheap eBay li-ion battery packs I could find that would fit in my yellow Peli case.


These are cheap and cheerful batteries but seem to last ages so are doing a good job for now.

You can make this same set up using the items I have here with any batteries of your choice as long as they are 12volts

I cannot remember the figures from the total discharge of this battery box when I built it, but I’m planning on making a bigger one.


So will update new figures when I do the new post for that in the future.

From our rough calculations, We believe this box will run my Go Pro cameras for over 3 days fishing 12-hour days.

SEE BELOW AN INLINE FUSE IN MENTIONED. YOU WILL NOT SEE ONE IN MY BOX AS IT IS WIRED ELSEWHERE!!!

PLEASE WIRE IN A 1AMP FUSE TO PROTECT YOU AND YOUR GEAR

Battery Box Mod 5v

I Continue…

ALL PARTS FOR THIS BUILD CAME FROM EBAY

Parts needed:

YOU ONLY REQUIRE 1 OF EACH ITEM BELOW:

Inline fuse holder (put this between your Sp17 Connector And the positive From Battery or converter)

1amp fuse

waterproof box. (i used a Peli Case)

Y
splitter wire with connectors of your choice

2 pin SP13 Connector (I use Sp13 for everything except my fishfinder)

(12v in) (5v 3amp out) converter

Batteries of your choice, wire 0.75mm, flux core solder, soldering iron, electrical tape,


CLICK BELOW TO BUY ALL ITEMS NEEDED FOR THIS BUILD:

My box has 2x SP13 plugs but only one is needed really

5v batt box

The sidewalls of the Peli cases are very thick. To get around this I put a sanding disk in my 4 1/2 grinder and sanded the inside and outside down a little.

So the connector would fit properly and the backing nut would do up nice and tight using all the thread inside the nut.

I also apply a bit of very strong sealant on the inside and outside around the connector for good measure.


I recommend CT1 for everything kayak related, It sticks to everything and is strong as F#!K.

It is expensive at around £10 a tube, But a tube goes a long way as not a lot is needed.

12v to 5v 3amp out

See above 12v to 5v converter max 3amp out otherwise you will damage you Go Pro

You will see my batteries are wrapped in electrical tape. This is because these batteries came in shrink-wrapped packs with on-off switches wired in the tops.


I pulled all the outer packaging off and removed these switches as they are not needed for this build.

You wouldn’t believe it, But I have reduced the overall size of the batteries by 1 quarter by removing all the cardboard and foam wrapping.

I unwrapped them back to their individual cells and just cut a new cardboard outer layer.

Then taped them up. doing this is entirely at YOUR discretion. Li-ion batteries are dangerous to handle them with care!!!

All soldered up

Continued…

Next, when the sealant is dry, You want to solder the output wires from the converter to the SP13 connector.

The SP13 connector pins are numbered. I chose to wire everything on my kayak so PIN 1 IS POSITIVE, PIN 2 IS NEGATIVE.

This way there is no confusion when adding other things in later.

Battery Box Mod 5v

Next solder your splitter wire to the converter input, making sure you get the connections the right way round.

Always wire all batteries in PARALLEL to KEEP THE SAME VOLTAGE!!!

YOU ONLY WANT TO INCREASE THE AMPS PER HOUR or AH

If doing this with one large 12v battery you still need the voltage converter DO NOT wire straight to SP13 connector.

If using more than one battery, I would recommend buying a splitter or set of splitters. This makes the build easier to connect and remove batteries as and when needed.

Packing in the case

Continued…

Once everything has cooled down, Double check all wiring!!! Then check again!!!

Battery Box Mod 5v

Once you are happy everything is wired correctly, Tape up all soldered joints to make sure nothing shorts out.

Time to start cutting lots of strips of foam to pack everything in place. You do not want all your batteries banging around in the waves or the back of your car etc…

All packed neatly

Once you have carefully arranged your batteries and wires and packed them all in tight you are done.

Battery Box Mod 5v

Once finished close the lid and grab a voltmeter and test your voltage and the polarity coming from your sp13 connector to confirm its correct before plugging into your Go Pro or external device.

All done

You can use these basic instructions to make any size battery box for your kayak.

It’s the same principle from start to finish using whatever components meet your personal requirements.

Feel free to message us with any questions or queries and we will help where we can.

Thanks…


Harley@proanglerkayak.fishing

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