hi, I've been pretty busy with my sh4d.

But lately I've noticed a sometimes showing screen alert saying "warning battery low" , yet I have no batteries inside the machine. I am using USB power to my iPad via one of those iPad with keyboard conversion cases, so I can use it like a laptop, and it has two USB ports i believe which are usb 3.0. Typically I've had my Roland plugged into a usb hub connected not even to my other MacBook pro so this warning actually is a recent thing although I've had my sh4d for about almost a year.

Anyhow I only saw this low battery warning a couple times. But I thought it was pretty strange as I had no batteries inside. Could it be the ipad port is somehow not enough power for it?

Any helpful answers are welcome!