Hello.
Edit: Read the last line first... not worth the money!
Low on power?
I am currently testing a battery pack with solar panels.
I've taken some pictures and uploaded them to flickr while it's charged my phone.
Click on the pic for more pics.
I did first a charge over night from my phone wall charger (the charger that comes with it has US sockets.
It comes with a 6 plugs for Nokia, Samsung, MOTO, SE, Iphone 3g etc, and the best of all, Mini usb
I do need a micro usb soon... when my new phone arrives. (HTC Desire)
I have no idea how long it will take to charge the device on solar power, but i would guess days... There is not that much sun here yet. I will test that in the next few days.
While it was charging, the phone was downloading music from spotify, wifi on, no 3g on.
I bought the item DX: dealextreme.com/details.dx/sku.30011 it cost $13.63
charging process in numbers:
[17:40] level 33 voltage 3692
[18:01] level 41 voltage 3816
[18:23] level 52 voltage 3890
[19:12] level 61 voltage 3829 <-- Stopped charging!
Now the solar charger stopped top charge my phone...
It was cheep, just don't buy this device if you need extra power...
rvenes said:
Hello.
Edit: Read the last line first... not worth the money!
Low on power?
I am currently testing a battery pack with solar panels.
I've taken some pictures and uploaded them to flickr while it's charged my phone.
Click on the pic for more pics.
I did first a charge over night from my phone wall charger (the charger that comes with it has US sockets.
It comes with a 6 plugs for Nokia, Samsung, MOTO, SE, Iphone 3g etc, and the best of all, Mini usb
I do need a micro usb soon... when my new phone arrives. (HTC Desire)
I have no idea how long it will take to charge the device on solar power, but i would guess days... There is not that much sun here yet. I will test that in the next few days.
While it was charging, the phone was downloading music from spotify, wifi on, no 3g on.
I bought the item DX: dealextreme.com/details.dx/sku.30011 it cost $13.63
charging process in numbers:
[17:40] level 33 voltage 3692
[18:01] level 41 voltage 3816
[18:23] level 52 voltage 3890
[19:12] level 61 voltage 3829 <-- Stopped charging!
Now the solar charger stopped top charge my phone...
It was cheep, just don't buy this device if you need extra power...
Click to expand...
Click to collapse
try turning off your phone and letting it sit. it may still charge your phone to 100% but not when your are drawing a charge.
charge in day light not moonlight like 17-19:00
and turn damn wifi off
Thanks for the review. I go camping often and this was a thought, but not anymore.
i would really like to know if you turn your phone off will it charge it to 100%
Id probably find a bigger solar panel i used one like that in some school project lol
josefcrist's test I think reflects the reality for all solar chargers with internal battery, even those with double the capacity.
Maybe I'm a little bit off topic, but since I got the same more or less experience with a similar product, I'd like to say a few maybe usefull words on the matter.
I got a solar charger with 2500mAh battery. The led light on one side shows that the battery is being charged (when it is green). Well, i put it on my office's window and the green light never went off (at least for 3 days that I checked). This means that sunlight is not enough to charge it fully.
Then, one day I tried to charge my phone with it. I charged the gadget first with my phone charger (using a usb mini chord). Then I tried to charge my phone. It worked for half hour and then the gadget's battery was drained, while the phone's battery increased for 10% only.
Maybe I had many losses because I used the phone's long micro usb chord (the gadget had only a usb mini adaptor).
Then, I said "Ok maybe I have to charge it on DIRECT SUNLIGHT in order to see if it is really effective". Hmmmm. Well! I kinda destroyed the solar charger (I think). When I went to pick it up (I put it in my car's screen on a really sunny day IN GREECE) hardly could I touch it and when it cooled off i saw that the solar panel became curved from heat (and stayed that way) while it was plain previously.
Now I cannot figure out whether it works or not. Maybe I will through away a few more bucks buying another similar (OF COURSE NOT THE SAME), just to be sure that these things DONT REALLY DO WHAT WE ALL IMAGINE (OR HOPE) THEY DO!!!! PERIOD.
Thanks so much for this review, I always wondered about these.
i use Arctic C1 Mobile solar charger (http://www.arctic.ac/en/p/power/batteries/44/arctic-c1-mobile.html), i guess it's just similar, but with only 3 connector adapters and greater battery. always nice to have it on the way.
maybe try using another phone to charge.....
Thanks for info! Will gonna try the Arctic charger
Thanks for the review... Overheating a charger on a car dash... I can't believe it failed
I have an LG Lucid which isn't half bad. Unless you factor in battery life.
So I'm ready to pull the trigger on a spare battery or two, as well as a wall charger. You know those ones that you plug the battery into itself.
Anyone have recommendations on an inexpensive, decent charger that will charge a 1800-1900mah battery within maybe 6 hours or so?
Thanks!
Oh- looking on amazon if I can, as I have a gift card.
I just did this for my S3.
I can't recommend one for your phone, but once you know what to look for, it's the same basics across all batteries and chargers.
Do you want it to charge slowly ? You say 6 hours, but that seems awfully slow to me. Is that the point - so you can leave it on overnight ? I have a charger that chargers my 2200mAh battery in ~4 hours.
Look for a charger that will charge at 600+mAh. Often it will charge faster if connected to USB. You want to avoid the ones that charge as slowly as 300mAh. I guess they're good if you want to leave something overnight, but they're going to take ~8 hours to charge the battery !
Anyway - no matter if you want it to charge fast or slow, just look at the mAh output and do the math compared to your battery capacity - you can even use a "calculator" that will do the math for you (but it's really easy - "2200 / 600 = 3.6" - so 3.6 hours, but with some wiggle room for lower than 100% efficiency).
I got mine from the brand Anker - they were one of the few that offered a charger that wasn't ridiculously slow. It's 600mAh from an outlet, 1000mAh from USB (meaning it could charge the battery almost twice as fast). It came with two spares and the charger. All the reviews I read didn't say great things about the "universal" chargers, and they all seemed to have lower rates of charging - but maybe I wasn't looking at the right ones.
Hi xda,
i have recently bought these 2x 3600mah batteries from ebay. I cannot post the link but they are from an ebay store called bravo-ex. Its one of those white batteries with red and yellow stripes. The batteries brand says RD, but i think its a generic china brand or something.
Anyways,
I was able to use the batteries a first couple of times. I managed to charge both up only up to around 65%.
Now i have this problem where the charging indicator is not showing properly when i plug my phone in. There is no battery indicator lightning sign or moving. It stays stagnant at 5%. Tried charging for hours and nothing changes.
When i try to charge with phone turned off the phone will boot back up to home screen, instead of showing the big charging battery icon.
When i plug in the usb cable. Battery section in settings shows status as Not Charging but the led light still comes on red so i know there is charging going on but the battery meter doesnt move!
I have tried the following:
- edit build.prop battery capacity to 3600
- deleted the batterystats (couldnt delete at 100% because i cannot charge beyond 65%
- reflash to stock rom 2.3.4 and kernel (it did work for a while but went back again after a couple of plugging and unplugging)
- switching back to stock battery to check if usb port is faulty. The charging still works!
- changing around between 3 pairs of cables and chargers
My system is
-R800i
- Rom: Elite Gamer v2.0 GB
- Kernel: Lupus v12 for GB
- I had my digitizer and flex cable replaced at a third party service center about 2 weeks ago.
Please help me i am getting desperate. It may be the batteries are DOA but both batteries being dead seems a little unlikely. I really love this little piece of gaming heaven. I would really appreciate if someone can give me any expert advice. Thank you!
-
i have discovered a weird and non permanent fix.
i have to swap the old battery and the extended batteries back and forth several times until the battery meter decides to show up on the extended one.
But it only works after like 10+ swaps and after few minutes of charging it goes off after like 10mins!
WTF!
I agree that you have wierd problem.
I would blame the charger, but you already test another one...
If i where you, i would measure voltage on battery after it stop charging with voltmeter. 0% should be 3.2V and 100% charged should be 4.2V. On both, stock and extended battery.
Also, measuring voltage at pins that connect the battety to see the voltage value (with battery removed and usb charger plugged in)
Or maybe contacts on usb jack on phone is dirty and can be cleaned with alcohol and cloath (with phone off and battery removed)
This is just wild guesses, i really can't say what is causing it
Sent from my R800i using xda app-developers app
Hi guys!
Thought id share my find here picked up a momax charger to keep my n7 charged on the go! Love it.
Outputs about 1.5 amps seemingly charges pretty fast. I have charged my N7 from 10% to 100% withing hour and a half.
Kind of new to the whole portable charge thing but I love this little thing. It is small feels of quality and has nice blinking leds to indicate charge level.
it is 4400Mah capacity.
Pictures are attached.
Paid about 25$ not including shipping.
The price has come down I believe I might grab an extra one.
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=151224288251
I just had a chance to put this battery pack through some tests and here is my review for it.
This is a very solid battery pack from Fremo. The fit and finish is very good as well as its ability to charge my electronics close to OEM specs.
Fit / finish
- Very well put together as there wasn't any misaligned edges or noticeable creaks coming from it while handling it. I really like the silver finish on this thing as it isn't a fingerprint magnet and the silver/white color combination is very nice looking. There are 2 usb ports, @ 1A / @ 2A, and 4 LEDs. Pushing the button will make the LEDs light up indicating how much power is left in the pack. While charging electronics, the LEDs stay on depending on how much charge is left in the pack.
Performance
Note: I use a USB Power meter to get the amperage readings when doing my testing
- I tested this battery pack with my Lenovo Thinkpad Tablet 2 and a Nexus 5 cell phone. It was able to provide close to the amperage that the OEM chargers put out.
Thinkpad tablet 2 OEM charger showed 1.8A. Using the battery pack in the 2A slot, the USB power meter was giving a reading of 1.68A - 1.72A while charging the tablet.
For the Nexus 5, OEM charger showed .98A and the battery pack showed .92A - .95A.
As you can see, the battery pack gave close to OEM numbers for both products so this is very good!
In terms of charging this battery pack up, at 0% completely drained, it took approximately 7hrs and 15mins to charge it to 100%. Note that the LED lights do not turn off when it is done charging. This is a very good time. For example, I have a cheaper brand battery pack that is only 9000mAh and it takes almost 8hrs to charge it.
All in all, this is a very good battery pack for the money. Don't fall for those cheaper battery packs as the saying is true, "you get what you pay for". I would definitely recommend it to anyone looking for a reasonably priced and reliable battery pack.
Link to product on Amazon site: http://www.amazon.com/13000mAh-External-Battery-Charger-more-Silver/dp/B00MHI7TO8/ref=cm_rdp_product/189-6094633-4065328