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Robb |
2010-03-03
, 12:37
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Posts: 146 |
Thanked: 76 times |
Joined on Feb 2010
@ Poland
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#11
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Originally Posted by 6sicSIX
How do you know that "n900 can handle up to 1200mA"?
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2010-03-03
, 12:43
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Posts: 184 |
Thanked: 33 times |
Joined on Jan 2010
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#12
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Originally Posted by Robb
havent you checked the output rating on your charger?
How do you know that "n900 can handle up to 1200mA"?
__________________
<a href="www.thepunditreport.com">Nokia N Series</a>
<a href="www.thepunditreport.com">Nokia N Series</a>
| The Following User Says Thank You to di1in For This Useful Post: | ||
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2010-03-03
, 12:56
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Posts: 819 |
Thanked: 806 times |
Joined on Jun 2009
@ Oxnard, Ca.
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#13
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Originally Posted by 6sicSIX
kinetic charger
I've been thinking about this too, but i've decided to stick the panel into a casette tape case and add a usb socket..
I didn't want it on the back because it will be hard to use while trying to point at the sun.
http://www.gizmag.com/npower-peg-use...devices/10716/
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2010-03-03
, 13:08
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Posts: 144 |
Thanked: 75 times |
Joined on Dec 2009
@ Israel
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#14
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Originally Posted by aironeous
Oh my god, this is a backpacker's dream!
kinetic charger
http://www.gizmag.com/npower-peg-use...devices/10716/
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2010-03-03
, 13:21
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Posts: 1,217 |
Thanked: 446 times |
Joined on Oct 2009
@ Bedfordshire, UK
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#15
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Originally Posted by roney711
Total marketing gimmick, the panel is way too small to provide any significant power.
u don't have to leave yor phone out for other ppl.. its would be easy access to charging anywhere u go .. that way u don't have to worry abut battery.. look at Samsung earth phone .
http://images.google.com/imgres?imgu...26tbs%3Disch:1
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2010-03-03
, 14:53
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Posts: 75 |
Thanked: 125 times |
Joined on Nov 2008
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#16
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This really is a great idea, but unfortunately wont work.
You'd need roughly a 1 foot by 1 foot panel to generate enough mA at 5V to actually power and maybe charge the N900 (in full direct sunlight).
You'd also need a power regulator to keep the voltage at 5V no matter where you point the panel... a 6V panel will go to almost 12V in the sun (unloaded), and barely 0.5V indoors.
Which brings me to my next point. If you want to be able to charge the N900 and *not* have to leave it in the sun, you're going to need at least a 1m x 1m 24V panel... In the shade, it will maybe *just* be able to produce 5V (loaded) and a few milliamps. Maybe just enough to power the N900, but doubtful enough to charge it.
You'd need roughly a 1 foot by 1 foot panel to generate enough mA at 5V to actually power and maybe charge the N900 (in full direct sunlight).
You'd also need a power regulator to keep the voltage at 5V no matter where you point the panel... a 6V panel will go to almost 12V in the sun (unloaded), and barely 0.5V indoors.
Which brings me to my next point. If you want to be able to charge the N900 and *not* have to leave it in the sun, you're going to need at least a 1m x 1m 24V panel... In the shade, it will maybe *just* be able to produce 5V (loaded) and a few milliamps. Maybe just enough to power the N900, but doubtful enough to charge it.
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2010-03-03
, 14:58
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Posts: 579 |
Thanked: 286 times |
Joined on Oct 2009
@ Australia
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#17
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Originally Posted by aironeous
kinetic charger
http://www.gizmag.com/npower-peg-use...devices/10716/
sold sold sold
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2010-03-03
, 15:07
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Posts: 293 |
Thanked: 76 times |
Joined on Jan 2008
@ Fremantle, W. Australia
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#18
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I actually had this on my first mobile phone.
It was a Nokia 1610 and took credit-card sized SIM cards, so this was a long time ago, in the early years of GSM. It had more surface area than modern phones, even than the N900.
Nokia sold a battery with solar panel on the back. The idea was to just leave the battery lying in the sun - not the whole phone.
It was a Nokia 1610 and took credit-card sized SIM cards, so this was a long time ago, in the early years of GSM. It had more surface area than modern phones, even than the N900.
Nokia sold a battery with solar panel on the back. The idea was to just leave the battery lying in the sun - not the whole phone.
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2010-03-03
, 22:41
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Posts: 19 |
Thanked: 7 times |
Joined on Dec 2009
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#19
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Here's what you want:
http://www.amazon.com/USB-AA-Solar-P...7655274&sr=8-1
Solar panel trickle-charges AA rechargeable batteries, which themselves output stable 5V over USB.
I have one... works great for charging anything over USB!
5 ounces w/o batteries, 6.8 ounces with (comes with pair of Sanyo Eneloops... bets NiMH you can get.)
;>
http://www.amazon.com/USB-AA-Solar-P...7655274&sr=8-1
Solar panel trickle-charges AA rechargeable batteries, which themselves output stable 5V over USB.
I have one... works great for charging anything over USB!
5 ounces w/o batteries, 6.8 ounces with (comes with pair of Sanyo Eneloops... bets NiMH you can get.)
;>
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2010-03-03
, 23:04
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Posts: 3,664 |
Thanked: 1,530 times |
Joined on Sep 2009
@ Hamilton, New Zealand
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#20
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great idea also great risk.
One most importantly is that customising the charge pattern of the N900 may causing a problem to the battery's life via back cover. It may be too slow to charge the battery to the speed of the battery being consume by the device. The only way to get it working is to get light but would you risk your expensive device to be sitting in a hot sunny day?
One most importantly is that customising the charge pattern of the N900 may causing a problem to the battery's life via back cover. It may be too slow to charge the battery to the speed of the battery being consume by the device. The only way to get it working is to get light but would you risk your expensive device to be sitting in a hot sunny day?