Q. I am going on a vacation in Yosemite for 5 days, i'd like to know how well do you think an iphone solar charger will work. whats your experience with these.
A. Solar Charger?
Goodluck is all I have to say.
Or bring a back up charger the one that already charged, all you need is to plug your iphone in it and it will charged it. Worked for camping if you do not have your car or no electrical outlet nearby. They worked pretty good for me. Make sure it is made or compatible for iphone.
Goodluck is all I have to say.
Or bring a back up charger the one that already charged, all you need is to plug your iphone in it and it will charged it. Worked for camping if you do not have your car or no electrical outlet nearby. They worked pretty good for me. Make sure it is made or compatible for iphone.
how much energy is used for my iPhone to charge?
Q. when i plug my iphone into the wall to charge it, how much energy is passed from the wall to my iphone before its fully charged??
i'm writing a blog entry about solar iphone cases, and i'd like to try and calculate how much energy you'd save or how much carbon you'd offset if you used a solar charger to juice your iphone for a year instead of the walljack.
thanks!
i'm writing a blog entry about solar iphone cases, and i'd like to try and calculate how much energy you'd save or how much carbon you'd offset if you used a solar charger to juice your iphone for a year instead of the walljack.
thanks!
A. 4 to 6W for iphone 2 and 3
I have 3G-S and if I use it for phone calls or mp3 it needs charging every 1-2 days.
I have 3G-S and if I use it for phone calls or mp3 it needs charging every 1-2 days.
Would solar panel powered objects last longer if we were closer to the sun?
Q. I have a solar paneled portable iPhone charger. If I held it higher to the sun, would the amount of time it would take to restore the battery shorten?
A. Sure! Great Idea!
Lets say you want to increase the speed by 10% and that recharge speed is directly proportional to light intensity, ok? ( A reasonable first approximation) So, since intensity is inversely proportional to distance squared we have 1.1 = d(high)²/d(low)² where low & hi are the two heights. That gives us â1.1 = d(high)/d(low)
or d(hi) = (â1.1)*d(low)
Since â1.1 ~ 1.05 we have the difference in height has to be about 5% of the distance to the sun closer to the sun to get a 10% increase in power. 5% of 93 million miles is 4 million miles (roughly).
So, if you will hold your panel about 4 million miles above the ground you can obtain a modest power increase.
HTH
<edit>
This analysis presumes that the same light filtering our atmosphere does would be done on the phone. Of course at 4 million miles there isn't any atmosphere so the intensity would be lots and lots higher.
Lets say you want to increase the speed by 10% and that recharge speed is directly proportional to light intensity, ok? ( A reasonable first approximation) So, since intensity is inversely proportional to distance squared we have 1.1 = d(high)²/d(low)² where low & hi are the two heights. That gives us â1.1 = d(high)/d(low)
or d(hi) = (â1.1)*d(low)
Since â1.1 ~ 1.05 we have the difference in height has to be about 5% of the distance to the sun closer to the sun to get a 10% increase in power. 5% of 93 million miles is 4 million miles (roughly).
So, if you will hold your panel about 4 million miles above the ground you can obtain a modest power increase.
HTH
<edit>
This analysis presumes that the same light filtering our atmosphere does would be done on the phone. Of course at 4 million miles there isn't any atmosphere so the intensity would be lots and lots higher.
Powered by Yahoo! Answers
No comments:
Post a Comment