Plan for using 12v accessories with 48v wiring in the CT?

[rizvend]

Ford T3 BlueOval TN/KY would me my guess.

I looked at 48v to 12v converters but also see 10 A, 20 A and undefined as choices. Which one will work for the CT or is it accessory dependent? Help please. Thanks ?

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[SSonnentag]

I'm planning on simply using 120V AC instead of 12V DC. My coolers run on either. Air compressors can be had either way. Laptops come with AC adapters. So far the lack of 12V hasn't been an issue for me.

 

[mstatkus]

yeah the forward 48v is 400w 8.33A. Stepped down to 12V thats about 33.3A available. You could build your own setup or get something like a ecoflow to buffer if you needed more power. Run that into say the solar input to charge the unit, then use it for AC 120V. Thats got a peak of 2400w and constant of 1800w AC Power. Or skip that and run a 12 gauge extension cord off the bed.

Even building a off grid workshop with 2x100w solar panels, 2x 12V 100Ah LifePO4 batteries, a inverter and a solar charge controller can save a little over the ECOFlow but those batteries range in discharge 100A-200A max. So me drawing 15A at 120V (inverter) is placing a load like 185A at the batteries at 12V and an inline 200A fuse.

I got a DC adaptor for AC outlets (bed or in the cab) to cover plugging in my air compressor if needed as it also runs on battery. Or any other old 12V accessory if I need it. Believe that was 12V 15A (180w) peak support.

 

[ThatGuyBo]

So… I did a little more searching online and it looks like the convertors that are available have fairly low wattage capacity and are made for those living the van life. It also seems like the power draw from using some of these is really inefficient so with the range not being what many had hoped then aftermarket accessories may have the potential to become a bit of a range liability without an efficient, safe, conversion box of some sort to step down the DC voltage so that typical items from the aftermarket can be made to work with the CT… if at all. I also saw some comments that some of the versions of convertors on the market may even be a fire hazard and probe to failure.

You should do some more searching.
The efficiency of some of the 48v - 24v/12v dc-dc converters can be 90%+.
On top of that, what exactly are you looking to run? I can't imagine anything you want running off of the 48v line would require more than you could achieve with a buck converter.

Also, any cheaply made power supply can be a fire hazard. Don't buy junk.

 

[Woodrick]

I looked at 48v to 12v converters but also see 10 A, 20 A and undefined as choices. Which one will work for the CT or is it accessory dependent? Help please. Thanks ?

48V to 12V is the voltage. 10A, 20A are the current capacities. Get the current capacity that fits your requirements.

 

[mongo]

48V to 12V is the voltage. 10A, 20A are the current capacities. Get the current capacity that fits your requirements.

With the understanding that the 48V feeds are only 400W.

 

[mongo]

I'm planning on simply using 120V AC instead of 12V DC. My coolers run on either. Air compressors can be had either way. Laptops come with AC adapters. So far the lack of 12V hasn't been an issue for me.

You can also use the 12V feed from the 7 pin trailer connector. It's 13.5V at 20A (or 30A in Electric over hydraulic brake mode).

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