E-torque is 48v of raw power, how do I use it to power my fridge?

[James57]

I am using the 48V e-torque battery to power my compressor and fridge.

I am using a 48V to 24V DC-DC convertor, but same could be done 48V to 12V if you already had 12V accessories. I used a DC to DC by Vicor engineering but there are many good ones that are >90% efficiency.

The higher input voltage means more efficiency so I urge you to run at 24V if you can as you will get longer run-times.

The setup works well, and what is nice with this setup is I don't need to worry about discharging the primary battery. Even after a run down test the JL starts fine, tells you start/stop is disabled while the 48V is re-charged, and as this battery charges at a much higher current you get a very fast recovery when the engine is running.

Let me know if you need any help, but this is not a project for someone not comfortable with electrical systems. The 48V battery is lithium and if you screw up you have a fire on your hands that most fire extinguishers can not put out. This is why Tesla's like to burn to the ground.

I just came across your comment about using the E Torque batt. for power acc.
What is it that you did to make this work.
I do have experience with electrical systems.
I have a 2021 JLUR
Thanks
J

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