I live in an off grid property running on 6 12v batteries. We have a 2000w inverter and are trying to get a fridge to run on our system. We have enough power to run it however the issue I am having is on the initial start up the compressor draws around 100amps for around a second. This draw drops the voltage of the batteries to the point that anything else we were using (TV, computer) turns off and has to be rebooted.

I am looking into a soft start device to distribute that instant 100amp draw over a few seconds (such as this one <https://www.jaycar.co.nz/240v-10a-motor-speed-controller-kit-with-soft-start/p/KC5526>

I was wondering if anyone has any experience with this and if they believe that it will work or any other suggestions. My main concern is that the soft start will mess up the timing of the electric motor of the fridge and it will just stall out.

Thanks in advance!