Has anyone deduced the weight/hit to payload of the 2KW Pro Power option?

 

I've wondered this, but it is not listed in the e-source guide under "option weights" (none of the 2021 specific options are). I suspect between 50-100# but I have not seen 2 equally configured truck stickers, one with and without the 2kW. Two car batteries themselves should be >50# alone, then add alternator and inverter.