Dumb wiring help

[Azar]

Hey guys,

I know very little about electricity and/or wiring so I'm turning to you guys for a bit of an assist. (I feel like this is the most basic of electrical questions, so I'm really opening myself up for some serious ridicule....of which I'm likely deserving)

I'm working on building a little portable speaker box guy, I've got it all cut and ready for the parts to mount. I've got my battery (This is it, for reference

I've got my amp, and I've got a voltmeter/USB charger and I have 2 SPST switches with 2 contacts.

How the fuck do I wire it up so I can flip a switch to power the amp and then flip another switch to power the voltmeter/charger??

I put it together quickly at work and I thought it was supposed to be a loop, I feel like I'm missing something big.



Like I just have the positive going into the amp...then it stops and out comes the negative. Does the positive need to loop back to the battery? What am I missing...I also have an inline fuse holder so I don't blow up my battery or catch myself on fire...so where should I put that?

If anyone has any suggestions, I'm fully open ears. The videos I had watched had 3 contact SPST switches where it was ground, load, and power....which made sense to me, but I got switches that only have 2 contacts. (I was using this for my idea of wiring: https://youtu.be/OfDi-DxL86E )

If you have any questions, please don't hesitate to ask...I was trying to get this done to take on a trip on Friday....so we'll see!

Other pertinent info: Amp = http://www.daytonaudio.com/index.php/kab-250-2x50w-class-d-audio-amplifier-board-with-bluetooth-4-0.html
I also have female and male power pigtails...

[freeskier7791]

What are the switches rated at?  You can put them in line on the positive or negative.



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[Cobranut]

Azar,

That looks fine. 
Install the fuse between the battery + terminal and the feeds to the switches.

As far as fuse rating, most USB's supply no more than 2.1 amps or so, the voltmeter draws almost nothing, and the amp should have an input rating.
Add these values together, and use a fuse around 1.5 to 2 times that value.

Hope this helps.

David

[Azar]

Azar,

That looks fine. 
Install the fuse between the battery + terminal and the feeds to the switches.

As far as fuse rating, most USB's supply no more than 2.1 amps or so, the voltmeter draws almost nothing, and the amp should have an input rating.
Add these values together, and use a fuse around 1.5 to 2 times that value.

Hope this helps.

David

Thank you so much, I think that will take care of it. I'll put the fuse inline with the positive before it splits to go to the switches. Thank you again!!!!

[jwvand02]

re: your loop comment, what you've done is create two separate loops that function independent of each other. If you remove the charger/volt loop, you'll see you have a pretty clear amp loop and vice versa. This is how having more than one circuit on the same source works! 

[DDv8]

Quote

If anyone has any suggestions, I'm fully open ears. The videos I had watched had 3 contact SPST switches where it was ground, load, and power....which made sense to me, but I got switches that only have 2 contacts. (I was using this for my idea of wiring: https://youtu.be/OfDi-DxL86E )
 
The grounded switches are likely for a lighted switch. the ground closes the loop for the light in the switch.

DD

[Azar]

Thank you my guys for your input and help! I had put the sound deadener in it the other night so tonight was all about wiring. All done and it works exactly how I wanted.



4 inch waterproof speakers up front, right LED is power (turns red when you power on), left LED is bluetooth (flashes when nothing connected, stays solid when connected)

On the panel side there's obviously the USB (1 1a charger, 1 2.1a charger) then the voltmeter, left switch with the red cover is power to the amp, middle top is volume knob, lower mid is aux input, right switch is voltmeter (have a translucent blue cover coming for that one)

The other side there's a dust cover for the charging port, when the top is on and the handle down it's hard to see but accessible for charging without taking the top off.

[freeskier7791]

Cool idea!! finished product looks nice, glad we could help