I have a PD car charger that puts out up to 130W, for instance – that’s enough to charge even large laptops at maximum speed. The input voltage is still 12v from the car, but the output voltage and amperage changes depending on what the device can handle and how close to being fully charged it is.

Does that make sense?

À big Thanks for the answer 🙂

5v/2,4A chargers tends to become quite common by now, that’s good news . The next voltage(s) for charging Electronic stuff are 9v, then 12v . I suspect the Nebula needs 9v or 12v to complete a full charge (5v should reach ~95% which is very good), so it will fully charge on a car charger (decent ones provides 5v, 9v, and 12v) .

Good news. Thanks again Dave .

Ok, to answer your question as best I can:
– the projector does not charge at all from a 5v/1a charger (5W)
– I don’t have a two amp charger to hand, but with a 5v/2.4a (12W) charger, the projector displays a warning message about slow charging, saying that it will extend play time but not fully charge the device
– I don’t have a 12v USB wall charger — if you’re referring to a USB car charger, then it will be the same as the above, and depend on the wattage that it can put out. Decent USB C PD car chargers aren’t expensive, at least, so it won’t cost much to buy one if you need it.

I’m about 10,000 miles away from my review unit for the next several weeks, but if I remember when I get back, I’ll try to test some other chargers for you.

Thanks for the review.
Can you tell us (try) if the battery does charge on a « regular » 5v/1A usb charger ? Of course if it does it will take more time to get the battery fully charged than from a PD charger (more volts/amps) but it could be interesting anyway .
Same question with 5v/2a charger and also 12v/Xa charger .

Thanks again 🙂