Subject: Re: Inca Trail and Battery Charging
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From: Neil <>
Subject: Re: Inca Trail and Battery Charging
Date: Sun, 29 Oct 2017 14:39:33 -0400
Organization: A noiseless patient Spider
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On 10/29/2017 2:28 PM, sms wrote:
> My wife and daughter are going on an Inca Trail trip to Machu Pichu next 
> year.
> What are some ways to manage the lack of any way to charge devices along 
> the way?
> I can give them some USB power banks, though these are rather heavy to 
> carry and the losses to charge one battery from another battery are 
> significant.
>  From what I've seen of the hand-crank USB chargers, they are really not 
> practical, you'd have to stay up all night cranking just to charge a 
> small battery.
> There are some small solar panels that hang on a backpack, that claim to 
> deliver 500mA of current, and that are about $100. These could probably 
> charge a 1200mAH battery in five or six hours.
> There is a wood-powered USB charger, but I don't know if it's possible 
> to find fuel along the trail. This would be good to use at night, since 
> solar obviously won't work. 
> <>
> Or I can just buy them four or five spare camera batteries each. These 
> are for compact P&S cameras, not for SLRs, and after-market batteries 
> are $10 each.
> Has anyone here come up with a good solution for trips of several days 
> where they will not have any access to electricity?
> The other suggestion I made is that we resurrect one of our many old P&S 
> film cameras and that they take a bunch of film.

Of your choices, it sounds like the best option is to buy extra camera 
batteries and a multi-battery charger when they have access to AC power.

best regards,