So I tried this solar panel on an N810. It appeared to charge, but the duty cycle of on 5 sec/off 3 sec caused the screen to be permanently on and the charging notification (pop up and sound) to appear every 8 seconds. Unless the notifications and screen can be turned off in software, this charger isn't the greatest for the tablet.

Hopefully the battery I ordered will take care of the duty cycle. We'll see.

Frank