Power to internal outlets with Engine off???

AgRN16

Active member
Mar 7, 2025
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Landcruiser 250, 4runner TRD Pro
Been frustrated for a bit with a dilemma I have with our Land Cruiser. The worst part is I am sure there is a way to fix it, but I haven't a clue how.

How can we get/modify the truck so that the internal power outlets will supply power to the truck, even when the power is off?? In my 5th gen 4runner (2019 TRD Pro) I was able to easily make a fuse modification to the fuse box under the steering wheel, and after swapping out the stock battery for a much stronger deep cycle AGM battery, whenever I went on trips with the fridge in it I could run that bad boy all night with no problem, engine off all night and start up like a cock crowing loud in the morning.

Is there nothing like this for our Land Cruiser 250? No simple work around? Upgrading the starter battery is easy, but getting power to all the outlets full time even with engine off? I haven't the foggiest . . . 😣
 
When you say "power to all the outlets" No way that I've heard of.

120v outlet and cigar lighter, probably not going to happen without some rewiring.

Super easy to install a new 12v outlet in the 12v battery area. More details on my build page.
 

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