I was just trying to figure a way to get rid of the huge 2-3 and four cigarettes lighter adaptor at the panel, the other way to do it would be to have a battery powerful enough to power 2 or 3 devices while plugged to the 12 v adaptor and recharging, I would love to have an internal battery in each device, but the problem remain, each will need a separate wire running to the huge Multi-plugs at the cigarette lighter, I think the technology to make lighter thinner internal bateries is expensive, and anyway you still, will have the problem of the batteries depleting at a different rate, the Ideal would be a new device, with built-in ADS-B , Wi-Fi and battery, but this would be defeating the low cost of the original intented by IFLY.
thank you for your replies
ciao