Anybody using one of the new battery powered Ac units? do they work?

I have a freightliner Cascadia evo. It has the parks mart with opt idle. Will keep the sleeper cool in 100 degree heat during the day. Notice I said sleeper. Opt idle will start truck when batteries are low about 5-6 hrs in that type of heat. It's gentle when it starts an bunk is well insulated I don't hear it. Shut down is gentle as well.