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Old 12-24-2013   #1
 
Highlands Ranch, Colorado
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Water Powered Charger

Anyone have any experience with these: powertrekk at REI - FREE SHIPPING With no minimum purchase.. I just came across them today and it seems like an interesting alternative to a solar charger for extended river trips (Think a winter Grander trip where sun is at a premium and angling a solar charger is difficult at best).

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Old 12-24-2013   #2
 
Highlands Ranch, Colorado
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Or, something like this? Scorpion | Eton
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Old 12-24-2013   #3
 
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I saw post recently about some company developing some water turbine based thing that you could probably hang from your raft in the current and it would charge the batteries overnight while you're sleeping
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Old 12-24-2013   #4
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Schutzie recalls that!

http://energyphysics.wikispaces.com/...Turbine+System

15 KG, $5,000 each.

Buy two!
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Old 12-24-2013   #5
 
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Quote:
Originally Posted by Schutzie View Post
Schutzie recalls that!

http://energyphysics.wikispaces.com/...Turbine+System

15 KG, $5,000 each.

Buy two!
Your example is a pretty high output capable of recharging an electric car. The one I found was a crowd funded design to recharge mobile electronics that could be deployed anywhere in the world that they have running water
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Old 12-24-2013   #6
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It would be nice if they just designed all these toys to run and disposable batteries. Would be no problem to carry enough for any trip. Rechargeable is nice close to civilization but not so good in the wilderness
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Old 12-24-2013   #7
 
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I think this is the one you are talking about Avatard
Hydrobee Harvests Water Energy for USB Power to Go by Burt Hamner — Kickstarter
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Old 12-24-2013   #8
 
Walterville, Oregon
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Originally Posted by waterbob83 View Post
Anyone have any experience with these: powertrekk at REI - FREE SHIPPING With no minimum purchase.. I just came across them today and it seems like an interesting alternative to a solar charger for extended river trips (Think a winter Grander trip where sun is at a premium and angling a solar charger is difficult at best).
No personal experience, but I was curious. $150 for the unit, $12 for three pucks. Each puck produces less energy than two long-life alkaline AA batteries.
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Old 12-24-2013   #9
 
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Originally Posted by Wadeinthewater View Post

No personal experience, but I was curious. $150 for the unit, $12 for three pucks. Each puck produces less energy than two long-life alkaline AA batteries.
Each puck probably closer to three or four based on watt-hour/voltage

But see your point. For that price you can do close to dozen rechargeable batteries and a decent solar charger
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