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

[Andra DuPont]

Paul,
Thanks for the response and link to the actual circuit diagram showing the reverse polarity protection.

Andy


On Dec 14, 2010, at 10:01 PM, Paul Fox wrote:

> 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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> 
> =---------------------
> paul fox, pgf at laptop.org
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