[Power] Charging XO-1.0 From 12V DC Battery

[Paul Fox]

forster at ozonline.com.au wrote:
 > Just a note of caution
 > 
 > My understanding is that the XO's only protection against reverse
 > voltage is an internal fuse on the circuit board.

a couple of years ago i had a major panic after riding for half a day
with my XO-1 connected in reverse polarity to my motorcycle, so i know
that this isn't true.  it's diode protected.  the 1.0 and 1.5 inputs
both look like this:
	http://dev.laptop.org/~pgf/power_input.jpg

paul

 > 
 > If using a home made system (like alligator clips on the battery terminals) 
 > there is a real risk of damage. In this case the XO lead could have a series 
 > diode in it when made up, even though it wastes 0.7V of precious voltage.
 > 
 > Tony
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 > Power at lists.laptop.org
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=---------------------
 paul fox, pgf at laptop.org