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  #11  
Old 05-11-2013
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Re: Solar phone/tablet chargers

Quote:
Originally Posted by Philzy3985 View Post
I've read that the solar chargers do not kick out enough power to fully charge cell phones, it might get it to about 80% of the cell phone's battery supply but can't recharge the battery past that. The problem is these rechargeable batteries build a "memory" of how it recharges and you'll start damaging your cell phones charge longevity - which might matter to you on normal days of normal usage -

Portable Solar Battery Charger | Portable Solar Panels | Off-Grid Solar Generators | Goal Zero - Extreme Portable Power

--- I've seen surfers use these on crazy long backpacking trips to keep phones and cameras charged. --- They rave about how great it works, however I'm not sure if they're endorsed by the company for the trip or being totally honest.

However, they seem to have a pretty high capacity
Modern Lithium batteries do not suffer the same "memory" problems of older technologies.

I don't understand why you don't just plug the phone into your 12v system. Your house battery has the capability of charging your phone many dozens of times.
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  #12  
Old 05-11-2013
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Re: Solar phone/tablet chargers

The marine 12v sockets destroyed my verizon cell phone charger nor would it allow me to use the regular 12v usb plug. If you have a 12v on board you should at least have one automotive one that doesnt have the lock ring on it. On that trip on a friends boat out of refit there were 5 people with no way to recharge since there were no inverters and the generator failed. I went and got a little 30 dollar solar charger/battery on amazon. It works great though it likes to use its on cables for charging.
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Old 05-11-2013
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Re: Solar phone/tablet chargers

got solar/wind on the boat But the admiral got a littlefolding 2 panel from REI that fits in purse/pocket and keeps us going in a pinch. she's had it for 3y now and it still works. one I got thro internet broke in a ~week. moral- if you're going to carry it around make sure it's durable.
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  #14  
Old 05-14-2013
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Re: Solar phone/tablet chargers

Thanks everyone for your thoughts. It looks like some more research is in order; unfortunately, these chargers are not so cheap that you'd go buy a bunch, test them, and keep the one that performs best (I suppose that's what CNET and Wired are for).
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Old 05-15-2013
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Re: Solar phone/tablet chargers

zeil-
"keep the one that performs best"
The technology behind them is all about the same. All solar cells are fairly similar in performance. All the consumer really needs to know is what is the power output of the gizmo, what is the storage onboard (if any) and then do the math. Compare reviews (on Amazon or other sources) to see if one is poorly made or not, but take the reviews with a grain of salt because a lot of the reviewers don't understand basic concepts. Which is why Apple won't let them change an iPhone battery without adult supervision.
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