Windows 3 described in the Bible

Maybe I missed this, the posts got sort of long winded and started running together, so sorry if this has been addressed. I used to have a 386 laptop computer, and if I recall correctly the battery life SUCKED, so it seems to me that mid-presentation the visitor from the future would have to take a break, head to the nearest outlet and recharge...right? What outlet? Maybe my perception of when things like electricity were discovered for use is a bit off, but it doesn't seem to work to me. Sorry for spelling mistakes it's 2:40am here...
Brad