No. I am using Fanoush's boot menu, but I did not choose the last option "...no charger plugged". my 2X AA external charger cannot wake up the N800, it gives a screen of "...hold menu to get boot menu...". It does wake up the 770 though. Anyhow, I browsed thru the whole 180+ posts, found out that most people use as a supplement battery while the tablet battery is full. I will try that tonight. bun