In Cab Power Inverter

Looking to hook up a power inverter inside the cab of my 06 via the main battery. If i run 4 AWG wire through the firewall directly to the battery and hook up the inverter will i have any problems? I'm a noob with electronics so feel free to bash me and make suggestions haha

 

have an inlined fuse or circuit breaker in between the inverter and the battery

 

okay, any recommendation for type or size? like i said i know nothing about electronics...

 

How big is your inverter?

 

just a 200 watt black and decker, but i might go bigger

 

4AWG is overkill.
200w is only 14a.
You can safely feed that with 10ga and fuse it at 20a.

 

Ok cool, any recommendations on where to buy all that? Home depot?

 

If you plan to go bigger later, I would go with 4 gauge. This is what i used for my 750W. I used flexible welding cable from the local hardware store (True Value) for $2.50/ft. Also used a 300 amp battery disconnect switch and a 60 amp inline fuse.

 

I think I have 6-8AWG for my 750 watt inverter. I used to have it hooked up to a 100A circuit breaker, but I moved it to a fuse panel with a 30A fuse (then moved the circuit breaker in between the fuse panel and battery)

 

I'm surprised the 30a is holding up, unless you aren't pulling full load.
750w is just over 53a.
Minimum fuse size should be the next increment above 60 (calculates out to 66a) and minimum wire gauge should be sized for 85a... or minimum 4ga (preferably 2!)

That's a LOT of current to be pulling from your battery.

 

I have a 400 watt inverter that I am going to hardwire to the battery. I'm using 4 gauge wire and an inline 60 amp fuse.

 

Yeah you're right. But I barely use it. And when I do, I'm not powering anything too crazy. I mainly wanted an inverter 1) inside 2) constant - meaning the truck didn't need to be on (like the bed inverter). I was thinking of inserting a higher fuse, but each slot in that fuse panel can only support up to 30A

 

I wouldn't go over 40 on the 8, 50 on 6, but keep in mind the sum total of the circuits on that block.
That main 100a breaker is way too large for the wire feeding it... which should be #1 or even 1-ought.

If that's the #4 that it looks like, the wire is your "breaker" since it can go (depending on temperature) as low as 85a.

The wire between the breaker and the fuse block should be sized similarly. At first look, it might appear that it only needs to carry the max of any one fuse in the block, but in actuality, if you have six 30a fuses, that wire could carry a constant 150a without any of the 30a fuses being at risk of blowing.