12 Volt bed outlet - what can it safely power?

[MakinDoForNow]

Good day

It looks like I will have to do a bit of research on how a hybrid truck with an ignition switch works, to figure out how you can use the engine cycling of and on as needed to support your High Voltage battery.

I do believe you were just using your 12 volt battery but I am not an expert...it just sounds like it as the engine did not cycle on its own.

MTF, once I have time to try and figure this out...

Andy

The hybrid started with foot on brake will start the ice (parked or running on roads) will start the ice when the HVB SOC drops to 30% and turn off the ice when the HVB SOC reaches 40% (using regen current also). The 12v can be recharged through the DCDC converter using the current from ice if running or the HVB if ice is not running. When the 12v becomes over 85-95(?)% charged the cycling of the ice will be about once an hour, maybe less. If you have turned off max idle timer then in 3+ hours the 12v will be charged (I have done this in the past but will normally use my noco g5). If truck is put into accessory mode (without foot on brake at least in push button start model) the dcdc converter will assist the 12v circuit until the HVB SOC drops to 32(+/-)% and pop up screen will ask for ice to be started. Then if ice is not started the usage of HVB will be turned off then 12v circuit will be shut down when 12v when 12v battery save SOC voltage is reached.

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[MakinDoForNow]

Good day

Okay, I just finished several hours of messing with the truck in the garage...gotta like it!

All in trying to see if 12 volt power is or isn't present if no loads plugged i to the 12 volt ports.

I have used my truck, a 2025 Lariat hybrid that has had all updates that are available for it as the test vehicle, and has a battery that was almost fully charged before beginning.

It has no electrical, battery etc issues that I know of other then the need for using MM's lights tricks to keep the battery topped up.

I used my Klein clamp meter (the clamp portion of it) for the first time (read the manual on operation, again) to read the amperage.

The panel in the back left corner of the box that holds the 120 volt plug was removed for access.

Power applied to 12 volt system

This is after the truck timed out and all 12 volt power was lost.

I clamped/metered the wire leading to the 12 volt power port, turned on and off accessory power and with all 12 volt loads removed prior, the 12 volt port was powered, with nothing plugged in, in the truck. I had to use the DC amperage setting.

When the truck timed out after about 90 minutes, all power was lost in the 12 volt system, as expected and as indicated.

Every trucks operation may vary, and battery charge status will affect operation as well.

Andy

Andy. If you think of it check to see if the 120 volt circuit reads 60 volts between each of the blade plugs separately and the round ground plug (using residential wire colors black to green and white to green). If each leg is 60 volts then this should confirm that the inverter is a split phase inverter. Remember that there is no "true ground" in a vehicle.
ETA=
I remember from my plumbing days having to hammer a ground rod wired to pipe rack when everything was wet into ground to prevent being shocked while running pipe threader.

 

[2024ash]

Good day

Okay, I just finished several hours of messing with the truck in the garage...gotta like it!

All in trying to see if 12 volt power is or isn't present if no loads plugged i to the 12 volt ports.

I have used my truck, a 2025 Lariat hybrid that has had all updates that are available for it as the test vehicle, and has a battery that was almost fully charged before beginning.

It has no electrical, battery etc issues that I know of other then the need for using MM's lights tricks to keep the battery topped up.

I used my Klein clamp meter (the clamp portion of it) for the first time (read the manual on operation, again) to read the amperage.

The panel in the back left corner of the box that holds the 120 volt plug was removed for access.

Power applied to 12 volt system

This is after the truck timed out and all 12 volt power was lost.

I clamped/metered the wire leading to the 12 volt power port, turned on and off accessory power and with all 12 volt loads removed prior, the 12 volt port was powered, with nothing plugged in, in the truck. I had to use the DC amperage setting.

When the truck timed out after about 90 minutes, all power was lost in the 12 volt system, as expected and as indicated.

Every trucks operation may vary, and battery charge status will affect operation as well.

Andy

Thanks for using your time and equipment on this Andy. I'm reading this as your tests confirm the 12v flex bed leads continue to supply power for 90 minutes after powering the vehicle down, even if there is no electrical load present?

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