

Science: GM Power Bar Plus (part# 84974434) SOMEWHAT works with Chevy Blazer EV PPV for V2L and V2H
The Chevy Blazer EV PPV is currently the only trim of the Blazer with the 19.2kw AC charger. This charger is the bidirectional module that allows V2H/V2L in other Ultium products. GM themselves states that this car is compatible with the other version of the GM Power Bar (part# 84942991). However there was no documentation anywhere that the "plus" version was compatible. I took the risk and bought one used for $400 (ouch!) because if I'm able to run my fridge and a few other essentials with the TT30 port on the Power Bar Plus that would be a major win in case of a power outage.
The startup sequence for using the device is as follows. First you turn the car on and since this is the PPV trim with 'Proteced Idle', I did not need to leave my keys in the car. Second you plug the device into the car, wait a few seconds, the push the button on the handle of the Power Bar Plus twice. The car then says "Charge cord connected", a green LED flashes then stays lit, and a white LED on the power strip side illuminates. As you can see it works great for low load applications such as that portable UV lamp I had. Unfortunately, as soon as I plug anything into the TT30 port, the cable faults out. The white LED turns off and the green handle LED turns red. According to the manual, this means "Manually resettable error - calibration failed". I tried multiple different power cycles, and flipped the breaker on the Power Bar. I even turned my generator inlet port completely off at my main house panel before plugging the Power Bar Plus into it and it still immediately faulted out.
In conclusion: the Power Bar Plus, while not explicitly stated to be compatible with the Blazer EV PPV, will in fact work for basic household outlet use only. This feels like something that could be fixed with a software update as the car has all the hardware to make the TT30 port work as well (I think). If this were to work, I could run my house off the car battery without needing to buy the proprietary $10,000+ GM Home Backup system. Thank you for coming to my TED talk.