any option ,solution to use solar panel.. Did anyone thinking about solar panel ..
I have a foldable solar panel and an external batterypack that works perfectly for my purpose.
http://www.solar-umpc.com/2007/06/sunlinq-25w-and-tekkeon-power-bank-work.html
My setup is not 100% like the one in the link above but quite similar. My twist is that I use a setup of two Tekkeon-batteries (MP3450 and 3450-10 to double the capacity). Because available power from the solar panel is varying as sun-conditions change I find it better to use a battery-pack to store the power until it is needed by a device (it can also be charged from the power-grid).
The Tekkeon-batterypack has a 5V USB-outlet and an outlet with several power-tips and voltages from 6V-19V.
Related
There are plenty of small solar chargers/batteries out there so I'm looking at that as an option to extend battery life, but I'd like a bit of info before I go shopping and end up with either something useless, or worse fry the Shift.
The battery on a Shift is 7.4, and the AC charger outputs 12v, so what output would be needed on a solar charger?
try 12v 3a should be ok , but rgds to solar charging battery - it will take a long long long long time to fully charge the battery and quick to fully used the juice , so take care if u r buying
in germany there is a specialist called solarc for laptop charging solutions:
http://www.solarc.de/cms/pages/en/products/consumer-products/e.go.php
I think the e.go professional can charge a Shift. (I use that for charging my Iphone, Nokia and WM devices if I around the world
or - if you need more power - the company have bigger industrial solutions too..
Anyone here uses a solar charger? If so, which do you recommend?
telmoabff said:
Anyone here uses a solar charger? If so, which do you recommend?
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I have one that came with my car.. to top up the battery I use that.. also there is one built into my sunroof..
Thinkgeek dot com has very useful phone chargers, manual and solar.
Sent from my rooted android over9000 x10i using swype on the xda app.
solar charger for laptop
telmoabff said:
Anyone here uses a solar charger? If so, which do you recommend?
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This 16000MAH solar charger for laptop espow.com/wholesale-electric-eye-multicrystal-silicon-16000mah-solar-battery-charger-panel-for-laptop.html can be your smart choice. It just takes less than 3 hours of charging to fill it up and the internal battery provides 3 - 5 hours of run time for laptop with a full charge. It also comes with a voltage selection button to ensure full compatibility with a wide variety of electronic products, such as; MP3/MP4 players, portable DVD players, mobile phones, or any other USB powered device using the built-in 5V USB port.
solar chargers
Hi, I do own a Bicrystal solar charger, it really good one. I ordered it 6 months before from Chinabuye, they have wide collection of solar chargers and features. Its housed in a plastic case, and has an output lead to cigarette lighter plug, with a LED, which illuminates when the solar panel receives a charge.I was looking for one and i found thinkgeek is quite costlier.
Hi guys,
I've been trying to use the navigation on my SGS2 (particularly iGo). The problem is that, even the phone is connected to the lighter socket, and indicates that it's charging, the battery level still drops. I tried two separate USB power adapters, one rated at 1000mAh and another rated at 2000mAh, same results. The phone was in front of the air vents in the car, so no question of overheating.
Any ideas what may be happening?
Do you know what are the power requirements when nav/data are running?
Thank you
I noticed the same, back on my former galaxy I7500, and still on my sg2.
Navigation works great, but use simultaneously 3D display, gps and wifi for localisation, sensors for direction and position intropolation (I guess), plus 3g.
It seems that heavy use comsume more juice than the typical 500ma you get out of a car plug.
On SG2, it drain slower than on the I7500, despite the larger screen. I guess the hardware is more energy efficient.
If it's a real issue, you can try to :
reduce screen brigthness
switch from 3g to edge only (fast enought for navigation)
Disable bluetooth (unless you use blutooth to get navigation from car speakers).
Use a 1000ma usb car plug
The cigarette plug on my car is supposed to give out some 10Amps, so there is juice available. In any case, I'll try different adapter/cable/car combinations, see if all behave the same or it's just a case of incompatibility.
I am using bluetooth to connect to the car audio system, so that has to stay. I suppose I can disable data connection as the maps are on SD, but not sure if it would make a difference. Anyway, is there an official (or unofficial) spec about the max current drawn by the device?
Read in some other thread that charging is limited to 700 mA so don't think it will matter.
So no workaround?
Can you please point me to that thread?
No way to fix this yet. Charging is limited to 650 mA in the driver, and the phone pulls more than that doubt tasks like navigation or gaming. Your best shot is use min screen brightness to bring current draw down.
It seems part of the problem was the USB cable, it was a 3rd party one. I tried now with the original cable, and the battery level remained constant, which is a definite improvement
Will try with the second charger (the 2000mAh one) and see what gives.
Right here goes I know we have the DIY charging thread which I must say thanks for, because the information supplied there helped me to make this possible, I don't think anyone has done this before and if I'm in the wrong forum can somebody move it please, I have a transformer and I like to go out camping a lot so I wanted to charge it whist I go away for a couple of weeks. Riding my bike through wales .
I can't charge the transformer whilst the panels are charging the gorilla but I can charge my phone HTC Desire Z.
..I have a power gorilla (a mini gorilla should also work might need to buy car socket adapter though.) The gorilla supplies the appropriate voltage 12 volts minimum to charge the transformer, i'm also using the 22100mah battery in the gorilla to store energy from my 2x freeloader supercharger solar cells.
First the solar charger, I got a Y power supply cable from amazon. 2 x male USB to 1 female USB, these connect to the panels then the female USB socket has a USB to DC barrel connector cable like the one on a router. This then goes into the power gorilla to charge it. The gorilla recognizes the solar panels charge and displays it on the LCD.
I then have the car socket adapter which came with it connected to a 12v car charger with USB 2.0 output (the gorilla pad adapter for ipad won't work.). Then connect the transformer USB cable into this and select 12 Volts on the gorilla.. Voila! The gorilla charges the tablet, making the little charging little noise to confirm and the icon changes, you can also charge your phone at the same time.
I'm not trying to sell any of the items quoted in the topic i just hoped it might help someone out, One of my first proper posts so go easy guys, thanks. b
Sent from my Transformer TF101 using xda premium
Always cool to hear about solar options. I do a bunch of AT hikes each year, maybe my TF will take the trip next time!
diy is awesome. heres a thaught. with more solar power , battery,a few electrical supplies and the hardware in the gorilla charger we could have one heck of a charging system for small eletronics.
You have to calculate everything in watts. Do the math. Figure out how well it will work. And don't forget to calculate the loses. You'll need a large solar panel.
I do a lot of motorcycle camping. I carry a small 12V lead acid battery, a 1 watt solar panel, and of course a 12 volt adapter for my smart phone. My phone has a 1600MaHr battery. It is a power hog and needs a full charge daily. So that is about 6 watt/hours per day (3.8 volts roughly). About 0.5 amp/hours from the 12 volt battery. Add in the conversion losses to charger the gel battery and operate the voltage converters, and you need closer to 1 amp/hour, or about 12 watt hours.
Now the solar panel is rated 1 watt. But those numbers are a stretch and I never see that. And what you do see is only there during perfect weather and perfect alignment, for a short few hours. I would guess that I see maybe 5 watt hours from it with a full day of sunlight. I would need three panels to break even on really perfect weather. Toss in a cloudy day and you are at a loss.
So the solar panel is a bit of a gimmick in this case. I charge the 12V gel cell battery well at home before I head out, and it does the work for me. It holds about 48 watt hours, throw in the solar, so that will cover it for a 5 days or a bit more.
Now I believe the TF101 has a 3300mAhr battery, and two of them in series. Or about 26 watt/hours. If you figure 4 hours of perfect light per day, you need over a 6 watt panel. Figure in the various loses, and you had better have more like a 10 watt panel. That gets pretty big.
I'm thinking about getting an Anker Astro3 10000mAh portable battery for this year. The lithium battery would have a more efficient charge conversion then the gel cell. Plus is is supposed to charge the phone and the tablet. It would be about 38 watt/hours. And much smaller then my 12 volt gel battery. It would charge the phone many times. But it will only charge the tablet a bit more then once.
I should be able to charge it a little from the solar panel, or in my case, plug in into the motorcycle while under way for a quicker charge.
Good idea, thanks for sharing.
And: if it works in Wales, it will work anywhere.
I was looking at this ready built charger - wonder if it will do the trick using a 3.0 USB cord to trickle charge. Or if it needs 12V to kick it off then use the 12V output into a car charger - or just mod the female portion of the car charger to go directly into the charge plug for a more streamlined package.
http://www.goalzero.com/shop/p/79/Guide-10-Adventure-Kit/1:1/
Cheaper at Costco:
http://www.costco.com/Browse/Product.aspx?Prodid=11678541
Hello! I am working on building an android phone (got a cheap Blu Dash Music C) solar powered server. I am working on the power system and an torn between several possible power options, and I guess it boils down to the following scenario:
What will happen if I root the phone and modify the "fast charge current" to 2000ma (or whatever the max rate the hardware allows) but the source is unable to supply that current? Will it just charge at whatever the available power rate is, or will this cause some issues which I have not thought of? I am thinking I will replace the phone's battery with a 20ah 3.7v (4p 5ah). If it would indeed be capable of charging at 2a, this would be perfect as:
- I could use all parts I have on hand, and use the phone itself as a charge controller.
- That would be similar my solar panels output (wattage)
- If power gets low, phone should power off like normal vs having to install some type of low voltage cutoff for an extrnal system.
But obviously as it gets dark power will drop off to zero.
Thoughts?
Thanks
P.S. Got this working reat with a Raspberry Pi and simple SLA battery but I believe an adroid phone will use less power overall and has 3G/4G built in.