Dumb question about connecting those teeny swamp cooler pump wires to a giant battery

[wizzzzzzard]

Hi folks,

I have followed one of the many swamp cooler instructables and notice that I have those teeny gauge wires coming from the pump and the fan connected to bigger wires that eventually will get connected to two 6V 230 AmpHour batteries in parallel. Do I need to worry about all that amperage flowing through those tiny wires?

Thanks

[Token]

It will be fine.

I highly recommend you spend the extra $20-$30 and get :

Terminal Blocks

To do the wiring

A fused terminal block for the Red+ side.

A ground terminal block for the Black- side.

Here are examples from a big chain online store:

Red:

https://www.amazon.com/dp/B00QMULSUI/re ... mDbZB172J0

Black:

https://www.amazon.com/dp/B003175XJW/re ... mDbN7BPNTF

And then pick up some small automotive fuses for your devices.

It will make everything neat, more reliable, easy to figure out if others need to troubleshoot.

[TT120]

The pump wires are tiny because the pump does not draw that much current. You could hook that pump up to a million amp battery and it will only draw the current it needs.

[wizzzzzzard]

I thought as much...but thank you, folks. I will pick up an inline fuse for the cooler. What amperage would you recommend?

[TT120]

I thought as much...but thank you, folks. I will pick up an inline fuse for the cooler. What amperage would you recommend?

For just the pump, go with a fuse a little bigger than the max current rating on the pump. If your pump is rated at 1.9 amps, I'd go with about a 3 amp fuse.