Garmin PowerSwitch and Hybrid

sog

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Tacoma
2024 Trailhunter
Gents,
I got my TrailHunter and was wonder if anyone wired Garmin PowerSwitch to Hybrid yet? the battery under the seat is 380LN3-MF and its 70Ah Lead Acid, but the Garmin documentation says to install 125Amp Fuse. I dont think my setup will pull that much power. Anyway as i see there is 2 potential options:
1. Possibly upgrade 12V AUX battery to 100Ah and run the power cable from that battery to engine bay and wire up garmin powerswitch (i think it would be easier to connect accessories there)
2. Dont think this option is safe tbh. There is 12V cable that goes to fuse box, so im thinking wire up 125Amp fuse to that cable and then wire up garmin powerswitch.

As right now i got prisu roof rack coming with rigid 40" led (14.8Amp) planning to wire it to AUX1 (15Amp) should be fine, but i will test and monitor. The AUX2 (10Amp) will have 4-6 Side LED's from baja designs i think S2 and AUX3 (5 Amp) will be 4x rock lights also baja designs.

There is AUX4, but after pull switch panel i didnt see any extra connectors (i havent looked that hard though), but there is a "D" connector under the bed, which is rated for 20Amp (Manual https://assets.sia.toyota.com/publications/en/om-s/OM04042U/pdf/OM04042U.pdf). I also looked for a fuse for AUX4 but i didnt find anything. Anyway was thinking on adding Garmin PowerSwitch. My first option was to go with Redarc setup, but my calculations got me to $8000.
 

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If I am understanding correctly, I think you may be confusing Ah with amps. Having a 125amp fuse to a 70ah battery is totally fine.

Amp hours means simply, the battery will supply 1 amp per hour for 70 hours. Or 70 amps for 1 hour.
125amp fuse just means no more than 125 amps through it at any given time. Your 70ah battery is more than capable than this.

The biggest thing to look at it the wire size to run all the way from the battery, to the front of the truck. Blue Sea Systems has a good wiring diagram you can find on google that will tell you wire size per length.
 
ah yeah i messed up. i figured out my future plan.
If I am understanding correctly, I think you may be confusing Ah with amps. Having a 125amp fuse to a 70ah battery is totally fine.

Amp hours means simply, the battery will supply 1 amp per hour for 70 hours. Or 70 amps for 1 hour.
125amp fuse just means no more than 125 amps through it at any given time. Your 70ah battery is more than capable than this.

The biggest thing to look at it the wire size to run all the way from the battery, to the front of the truck. Blue Sea Systems has a good wiring diagram you can find on google that will tell you wire size per length.
ahh yeah i messed that up haha. Spend some time on thinking what i want and here is what i came up with if anyone is interested:
1. I assume itll be about 10 feet: Wire a 3/0AWG wire with 500A ANL fuse from battery to under the hood to a 4 terminal bus bar.
2. Wire XX AWG wire with 100A Mega fuse from bus bar to garmin powerswitch
3. Wire XX AWG wire with 500A Mega fuse from bus bar to winch.
4. other 2 are for later use.
 
Don't forget you may completely lose your warranty.
 
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Don't forget you may completely loss your warranty.
good call, especially for this transmission TSB. My trailhunter is effected and dealership told me i have 60k miles as warranty for it
 
good call, especially for this transmission TSB. My trailhunter is effected and dealership told me i have 60k miles as warranty for it
Yep, me too since they added the hybrid versions recently.
 
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dealership said i got like 2 years free tow. I doubt that it includes trails though, i plan to take it out offroading more often to see if transmission will give out before 60k :)
 
Lol, yeah, give it hell! Better to break on their dime.
 
ah yeah i messed up. i figured out my future plan.

ahh yeah i messed that up haha. Spend some time on thinking what i want and here is what i came up with if anyone is interested:
1. I assume itll be about 10 feet: Wire a 3/0AWG wire with 500A ANL fuse from battery to under the hood to a 4 terminal bus bar.
2. Wire XX AWG wire with 100A Mega fuse from bus bar to garmin powerswitch
3. Wire XX AWG wire with 500A Mega fuse from bus bar to winch.
4. other 2 are for later use.
For your 500amp fuse, I would recommend looking into a Blue Sea Systems 500amp 1-2-Combined switch or just a 500amp disconnect switch. Peoples winches have ran away on them before. A button or solenoid can get stuck. I have my Fj wired this way so the winch is always off, and when I need to winch I pop the hood real quick and turn it on (or leave it on for a trip) but it gives me the option as a kill switch should it run away.

I used a 1-2-combined- off switch for the Fj because I had an inverter running through it as well that I wanted the option to isolate.

For the truck I will use a simple On/Off disconnect.

They are rated for 350amp continuous and I forget how many peak amps, but myself and many others have used it as a winch shutoff.
 
For your 500amp fuse, I would recommend looking into a Blue Sea Systems 500amp 1-2-Combined switch or just a 500amp disconnect switch. Peoples winches have ran away on them before. A button or solenoid can get stuck. I have my Fj wired this way so the winch is always off, and when I need to winch I pop the hood real quick and turn it on (or leave it on for a trip) but it gives me the option as a kill switch should it run away.

I used a 1-2-combined- off switch for the Fj because I had an inverter running through it as well that I wanted the option to isolate.

For the truck I will use a simple On/Off disconnect.

They are rated for 350amp continuous and I forget how many peak amps, but myself and many others have used it as a winch shutoff.
Thanks, i was thinking about this. I was planing to get a decent size plug, so i can plug and unglug. Im skeptical to order stuff on amazon since there is bunch of fake stuff on there from china, but i think ill just get it straight from the vendors website
 

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