Inverter 12v power source

[boxcreek]

I want to put a 12v power source plugin for a inverter.
should I run the power straight from the battery,or can I splice-in at some other existing 12v line?
I want to run a TV.
Thanks
New to the Forum

[A32Deuce]

I would try one of three places. Battery last because of distance, converter is one and where the fuse panel is another. Just use correct size wire for the load and protect with correct size fuse.

[DaveG39]

If you have a crank up TV antenna you may have a switch with a 12 receptacle in the compartment near TV that you could plug in a small inverter with sufficient power for TV.

[OLYLEN]

Depends on how big of an inverter and use. 2000+ watt direct to battery bank. 200-400 watt the appropriate fused and wire size. More info needed, what ya doin?

LEN

[C.Martin]

Refer to the manual!

Most inverters are located close to the battery...very close. 12v requires much more amperage than 110v per watt...so you save on losses by having the 12v run to the inverter short...and the 110v wiring longer.

[Skip426]

Welcome to iRV2.

The size of the inverter you need to install, will determine the size of the power supply wiring and circuit protection ( fuse amps).
Inverter size will depend on the load from the TV and possibly other devices. ( DVD player ? )
TV type will be a factor too , so you need the TV manual to get it's power requirements.
If you can use a 400 Watt , inverter you should be able to tap into an existing circuit provided the wiring/fuse is adequate .
Anything larger , JMHO : I know it could be a PIA , but run a dedicated fused circuit . There may be a main power hub some where close that could be used , rather that go all the way to the batteries.

[C.Martin]

Well...as a for example...

2800 watt Inverter...recommended gauge 4/0 from batteries to Inverter... 30 amp 110v circuit 10 gauge wire. Which would you like to buy 20 feet of? 4/0 or 10 gauge?

Just sayin'

Same holds true regardless of inverter size. You'll do better to keep the 12v run shorter.

[PbdBlue]

Even with a small inverter you'll be much better off tapping directly to the battery and placing it as close to the battery as you can. Go oversize with the wire. Voltage drop is your enemy.