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I am attempting to build a small 4xAA USB charger to use while on long flights so that I can watch movies. I notice that the wall charger is rated 5v 1000ma. I wonder if anyone has any clue what the Kaiser draws at full processor load. I can make a 4x AA charger with a 1000ma capacity, but if i could get away with something like a Minty Charger(2xAA, maybe like 500ma), I would, as the plans are there, and it would save me 15 bucks for a switching voltage regulator.
Has anyone done any work to this effect, and would they mind sharing their measurements?
Thank you in advance,
Ben
use batterystatus and check consumption when watching a movie or something
I will certainly check that, thanks!
Also does anyone know whether the kaiser has and odd charging tendedcies?
My plan basically calls for 4 aa batts wired in series to provide 6v, into a 5v switching voltage regulator, and out to USB. Will this be something that will work, or are there any odd little caveats i need to worry about?
Ben
The USB spec calls for a max of 500mA at 5V. Since the Kaiser can charge off of USB, then that should work.
I have a back ground in basic electronics, and building something like this would be right up my ally. But when I can find just what you want at a price like this>>
http://www.thepocketsolution.com/PSI-42555.html
I can't see any reason to bother building my own. I use this vary one, for just the same reasons you want one. And it works great.
GWelker62 said:
I have a back ground in basic electronics, and building something like this would be right up my ally. But when I can find just what you want at a price like this>>
http://www.thepocketsolution.com/PSI-42555.html
I can't see any reason to bother building my own. I use this vary one, for just the same reasons you want one. And it works great.
Click to expand...
Click to collapse
Wow! I suppose I should have done a little more research first That charger costs the same as a decent switching voltage regulator.
Does that thing look like it's easy to open up? I may wish to modify it slightly so that I can charge other USB devices off it. I also probably want to repackage it into something fun.
Thanks for letting me know about this charger... You have saved me a lot of soldering
Ben
edit:
http://www.thepocketsolution.com/PSI-36223.html
I'm scratching my head re this one. The tilt and the kaiser are, with very few exceptions the same phone. I would imagine that the battery chargers here are the same too, though this one is a couple bucks cheaper. The AAA model is only 10 bucks... I imagine that all these things are is a voltage regulator and an LED... if i am gonna rip one apart anyways, is there any reason i couldnt get the AAA model, tear it up, jack 4 AA batteries to it, and get all the benefits of the 15 dollar model, for 10? Im not really penny pinching, though if i decide to repackage the whole deal anyways, might as well save the 5 bucks and buy a USB jack
ben
with the cost of geting the parts, you can buy one for about USD 10.
kms
You might want to check that giving the phone 5 volts will actually put it into charge mode. I believe the mot razar won't charge off the USB unless it first communicates with the computer. Don't know though, I only borrowed the phone for a week when traveling for work.
As for power consumption, I took a 10 hour trip yesterday. Bought a USB car charger and used the data cable that came with the phone. I plugged it in and it went into charge mode. Running tomtom and such didn't charge the battery to any meaningful extent while it was plugged in. Fortunately, it didn't drain the battery either.
Maybe the phone knows the diff between USB and an OEM charger, and draws power accordingly (500mA for usb, 1 amp for OEM charger).
Edit: the car usb thing I picked up is rated for 5v +-.5 volt and 1 amp output (says the sticker anyway). Does the job I was hoping for and was cheap (6 bucks at fry's).
Nice!
I think im gonna order 2 of the battery chargers linked above. one i will keep stock (i leave for spain in a few weeks and need one to work)
the other i will rip apart and see if i can do something fun and exiting with it. I think i have an empty altoids box around somewhere.... the one i used to hide smokes from the parents in when I was a kid....
I like breaking stuff!
Ben
Note that the Tytn II's charge circuitry may require more than 500 mA if the battery is sufficiently discharged. In such conditions, a 500 mA charging current won't actually charge the battery. A 1000 mA charging circuit should be sufficient, as that matches the device's rating as specified in the manual.
Be real careful..
Be careful taking any home built electronics on a plane in these days since 9/11.
A girl in USA got done for having a battery and LED on her t-shirt in an airport and wasnt even flying...
id be amazed if you were allowed to take a home-built circuit onto a plane, esp. in the USA
just saying
g
pontifex33 said:
edit:
http://www.thepocketsolution.com/PSI-36223.html
I'm scratching my head re this one. The tilt and the kaiser are, with very few exceptions the same phone. I would imagine that the battery chargers here are the same too, though this one is a couple bucks cheaper. The AAA model is only 10 bucks... I imagine that all these things are is a voltage regulator and an LED... if i am gonna rip one apart anyways, is there any reason i couldnt get the AAA model, tear it up, jack 4 AA batteries to it, and get all the benefits of the 15 dollar model, for 10? Im not really penny pinching, though if i decide to repackage the whole deal anyways, might as well save the 5 bucks and buy a USB jack
ben
Click to expand...
Click to collapse
I can't see any difference in these two. I've had this one for over a year and half. I used on the 8125, the 8525, and now the Tilt.
As far as a AAA ver a AA, since the voltage is the same between the two, then it is only a question of mAh capacity.
I have one thing to say if your coming into America with some home made electronics your going to be thrown in Jail ...
ripnetuk said:
Be careful taking any home built electronics on a plane in these days since 9/11.
A girl in USA got done for having a battery and LED on her t-shirt in an airport and wasnt even flying...
id be amazed if you were allowed to take a home-built circuit onto a plane, esp. in the USA
just saying
g
Click to expand...
Click to collapse
I've actually taken a suitcase full of half built circuit boards and electrical components as carry on (half finished school project). They didn't even raise an eyebrow. As long as it isn't connected to something that looks like a bomb, I don't think they care.
thanks, i surmised that based on some other devices i have. I'm not too concerned as the battery will never (hopefully) get critically low. I'd like to jsut keep the thing running for ~9 hours while running either GPS or a movie... I hate plane rides, and i need something to do to entertain myself. I'll see what the charger mentioned above can put out. I just ordered two, and we'll see what it looks like... I'll write a review when i have had time to play with it a bit.
I've had Archos portables for years and it also has a 5V input. A simple 4 cell pack using 2300-2900 NiHi AA batteries in series will easily power these devices for over 10 hours straight. What's nice is that you don't need any regulator at all, just don't use alkaline batteries in it as you'll be at 6V. I carry a very small 4-cell charger to charge the cells. Works great for long travel. I took an iPod version with battery fuel gague, stripped out their power supply and just kept the power switch and fuel gague circuit. This costs more but works really well and looks good too.
So this thread is of some use to others: here are some data that i collected regarding current draw:
Locked with the screen off, no apps running: 1-4ma
TCMP playing a movie fullscreen: never more than 350ma
TCMP Playing in background with tomtom navigator 6 running: 416ma
all done in flight mode with the backlight set to the middle.
Can you you do a worst case test for current draw?
Turn on GPS, bluetooth, Wifi, backlight max and not flight mode.
Hey guys, I got an email on my nook the other day, and when I picked it up, I didn't realize I still had it plugged into the charger, so I accidentally yanked it and broke the B&N micro SD cable.
I'm running phiremod, so normally this isn't a problem since I can slow-charge from my PC or car adapter.
The only problem is, charging like this only works once you've loaded the CM kernel. If you try to charge from a dead battery, you can't do that!
Right now, my nook color is dead. I can plug it in and I get the "not enough power to turn on, please wait 15 minutes and try again" message.
My question is, is there any way to charge this sucker (from death) without shelling out another $25 for the charger (and all I need is the cable, but they are almost just as much).
I have it plugged into my PC currently, and it has been plugged in for about an hour, but it still won't power on. If I leave it plugged into the B&N charger with a regular microUSB cable (even all night) it won't charge a drop.
Any suggestions?
Edit:
FWIW, my nook DID turn on after about an hour - an hour and a half of charging with 11% battery and continues to charge via the PC with a regular microUSB cable. It takes a while, but it will charge
Its good that it started working again. I know some things need to use an official charger to come from the dead. If you wanted to see if you could make it charge faster, (both from dead and regularly) you could try a different USB to wall adapter with higher wattage/amperage. Think iPad, XOOM, or Atrix (all high power-draw devices) charger...
Sent from my MB860 using XDA App
Higher amperage will help...but the magic is in those extra long connectors on the stock cable..to fast charge you will prolly need to get a new one.
Just a friendly PSA: lithium ion batteries should not be deep discharged.
I'm going to need a new cable pretty soon. The end that plugs into the Nook has been cracking and falling apart. I'm guessing I'd have to get it direct from B&N?
d00med said:
I'm going to need a new cable pretty soon. The end that plugs into the Nook has been cracking and falling apart. I'm guessing I'd have to get it direct from B&N?
Click to expand...
Click to collapse
You could try this one:
http://cgi.ebay.com/Barnes-Noble-No...?pt=US_Tablet_Accessories&hash=item2eb48a16e6
Just wanted to add: I've been able to bypass the low battery screen. Pop in a bootable Clockwork SD, then plug into the power source. If there's enough power you'll get into recovery. Swap back to your usual SD, and select the reboot option from inside recovery. It'll boot straight into the OS, bypassing the low battery warning.
Sent from my Nook Color!
Call B&N tech support and tell them that you have a bad USB cable. I did, and they sent me a new charger+cable within a week, gratis. YMMV.
i got one at best buy $14.95 OEM
The stock B&N charger is 2 amps (or 2000 milliamps) so any charger with less than that will take longer to charge. USB only supplies .5 amps so takes a lot longer to charge.
The ebay link above is a 1 amp charger.
I had the same thing happen to my Nook, and I've been fairly regular at the local brick and mortar B&N the last month or two (1 hour book read and various purchases and stuff).
So I took the cable in and showed it to them. They took that one and handed me a new cable. 'tis my suspicion that it's a fairly common occurrence with the sample units.
Worst you can do is ask.
d00med said:
I'm going to need a new cable pretty soon. The end that plugs into the Nook has been cracking and falling apart. I'm guessing I'd have to get it direct from B&N?
Click to expand...
Click to collapse
Mine was doing the same thing. Chunks were falling off the end that plugs into the Nook. I took it into my local store and they simply handed me a new one. Claimed it was the first time they'd seen one like that...
byronczimmer said:
I had the same thing happen to my Nook, and I've been fairly regular at the local brick and mortar B&N the last month or two (1 hour book read and various purchases and stuff).
So I took the cable in and showed it to them. They took that one and handed me a new cable. 'tis my suspicion that it's a fairly common occurrence with the sample units.
Worst you can do is ask.
Click to expand...
Click to collapse
I had a really great experience with brick and mortar bn staff. One guy cracked open a new charger and cord and just said to stop by if evertth wasn't totally fixed. I left and now I even have an extra charger!
BN staff = win!
Sent from my ADR6300 using XDA Premium App
Odd, the associate I spoke with said there were issues with some of the cords shipped with the early batches.
Sent from my ADR6300 using XDA Premium App
RickOSidhe said:
Call B&N tech support and tell them that you have a bad USB cable. I did, and they sent me a new charger+cable within a week, gratis. YMMV.
Click to expand...
Click to collapse
I did the same thing and they sent for free no questions asked.
Bought my nook used off craigslist. Called in and got a replacement cable no problem.
cmstlist said:
Just wanted to add: I've been able to bypass the low battery screen. Pop in a bootable Clockwork SD, then plug into the power source. If there's enough power you'll get into recovery. Swap back to your usual SD, and select the reboot option from inside recovery. It'll boot straight into the OS, bypassing the low battery warning.
Sent from my Nook Color!
Click to expand...
Click to collapse
ive been struggling with this for a few days since this whole battery issues have been going around with the late CM 82 nightlys... well. i wanted to make sure that my nook wasnt toast. (i have 3 and 3 different chargers and cables all OEM all new) so just last night right before the "fix" was merged into nightly 91/93.... ill be damned if i didnt do exactly what you said and managed to suck enuff juice out to boot off SD into recovery... however... i thought problem was solved and i let it sit in recovery (plugged into wall) but had i known what i known now... it WONT charge without the CM kernel installed. Now i think i managed to "brick" an unbrickable device. does this make any sense? im not good with words i guess.. but anyway... there isnt enough juice to even get to the "connect charger screen" hell... i bet most people dont know theres actually ANOTHER "connect your damn charge dummy!!!" screen that comes up after the one that says try again in 15 minutes lol. so ya... been sitting on each of my chargers for at least an hour each hoping to get some juice out ... and its a no go. o well.. i got 2 others... but dammit i had that one JUST the way i wanted it. idk why i even went to .32 kernel... it was a nightmare from first boot. (no i did not revert to stock rom first as i hear is what does the trick)
cmstlist said:
Just wanted to add: I've been able to bypass the low battery screen. Pop in a bootable Clockwork SD, then plug into the power source. If there's enough power you'll get into recovery. Swap back to your usual SD, and select the reboot option from inside recovery. It'll boot straight into the OS, bypassing the low battery warning.
Sent from my Nook Color!
Click to expand...
Click to collapse
ive been struggling with this for a few days since this whole battery issues have been going around with the late CM 82 nightlys... well. i wanted to make sure that my nook wasnt toast. (i have 3 and 3 different chargers and cables all OEM all new) so just last night right before the "fix" was merged into nightly 91/93.... ill be damned if i didnt do exactly what you said and managed to suck enuff juice out to boot off SD into recovery... however... i thought problem was solved and i let it sit in recovery (plugged into wall) but had i known what i known now... it WONT charge without the CM kernel installed. Now i think i managed to "brick" an unbrickable device. does this make any sense? im not good with words i guess.. but anyway... there isnt enough juice to even get to the "connect charger screen" hell... i bet most people dont know theres actually ANOTHER "connect your damn charge dummy!!!" screen that comes up after the one that says try again in 15 minutes lol. so ya... been sitting on each of my chargers for at least an hour each hoping to get some juice out ... and its a no go. o well.. i got 2 others... but dammit i had that one JUST the way i wanted it. idk why i even went to .32 kernel... it was a nightmare from first boot. (no i did not revert to stock rom first as i hear is what does the trick)
maybe i should post a warning thread to others to MAKE SURE BATTERY DOES NOT DRAIN COMPLETELY OUT BETWEEN WIPING AND FLASHING FIXED rom.... cuz your nook will NOT charge...... side note... does anyone have any suggestions as far as like a higher rated charger that may force a charge or soemthing? im no electrical engineer so if thats sounds dumb... it prob is. lol
Can you damage a device using higher amperage chargers than supplied with the device (i.e. using nook charger at 2 amps to charge cell phone supplied with 0.7 amp charger)?
wbrands said:
Can you damage a device using higher amperage chargers than supplied with the device (i.e. using nook charger at 2 amps to charge cell phone supplied with 0.7 amp charger)?
Click to expand...
Click to collapse
The tip of the Nook charger won't fit into a standard micro-USB port.
But if you plug a standard micro-USB cable into the Nook wall charger piece, I believe the USB power protocol will automatically modulate down to the highest the device can accept.
I came across the following charging stand for the HTC Flyer. What do you think? Would this work with our Nook Colors?
http://cgi.ebay.com/USB-Base-Dock-C...ccessories&hash=item3f0be99c32#ht_2900wt_1375
Well, it might connect but won't give you the fast charging ability of the stock nook cable (which has additional connections for the 3-4 hour rapid charge). Provided that you connected to a 2 amp source, you might get a charge after 8 hours or so, and if you had a 1 amp charge, _IF_ your screen was off perhaps after another few hours (12?).
Phatdawg said:
Well, it might connect but won't give you the fast charging ability of the stock nook cable (which has additional connections for the 3-4 hour rapid charge). Provided that you connected to a 2 amp source, you might get a charge after 8 hours or so, and if you had a 1 amp charge, _IF_ your screen was off perhaps after another few hours (12?).
Click to expand...
Click to collapse
This might actually have fast charge, thank to it being for the Flyer and all. I think this stand would work, but I have no idea how far that micro usb comes up from the bottom. Hate to have you set your Nook down and break it off or something.
Well I took a chance and ordered one from some store in Hong Kong. Will be here in a few weeks and will let you know if it works out!
igolfchip said:
Well I took a chance and ordered one from some store in Hong Kong. Will be here in a few weeks and will let you know if it works out!
Click to expand...
Click to collapse
THat does look really nice. If it works out igolfchip, please let us know!
Nburnes said:
This might actually have fast charge, thank to it being for the Flyer and all. I think this stand would work, but I have no idea how far that micro usb comes up from the bottom. Hate to have you set your Nook down and break it off or something.
Click to expand...
Click to collapse
Well, just to give you some idea of my tests.
Stock charger + cable = 3-4 hours
Stock cable + 3rd party 2amp brick = 7-8 hours.
From that picture it looks like a universal mini usb attachment. I doubt it will give the 3-4 hour charge. It probably will be a 2amp source though.
Phatdawg said:
Well, just to give you some idea of my tests.
Stock charger + cable = 3-4 hours
Stock cable + 3rd party 2amp brick = 7-8 hours.
From that picture it looks like a universal mini usb attachment. I doubt it will give the 3-4 hour charge. It probably will be a 2amp source though.
Click to expand...
Click to collapse
Maybe combine it with this: http://cgi.ebay.com/Barnes-Noble-Nook-Color-filter-plug-USB-charger-/190521989603#ht_3030wt_1163
I haven't tried it, but it would be quite nice if it work.
That might work, I don't know of anyone who's willing to try it out for 7 bux tho.
Phatdawg said:
That might work, I don't know of anyone who's willing to try it out for 7 bux tho.
Click to expand...
Click to collapse
This guy did: http://forum.xda-developers.com/showpost.php?p=13730222&postcount=32 but didn't comment on his/her experience.
That would still mean you need the proprietary cable tho, and that's what keeps on breaking.
I wish a cheap 3rd party manufacturer would pick this item up...I wonder if monoprice would consider making them, or if they are protected by patent and unable to be reproduced because of it.
Phatdawg said:
That would still mean you need the proprietary cable tho, and that's what keeps on breaking.
I wish a cheap 3rd party manufacturer would pick this item up...I wonder if monoprice would consider making them, or if they are protected by patent and unable to be reproduced because of it.
Click to expand...
Click to collapse
Yeah I know what you mean. Just had to call for a replacement today myself.
Probably is a patent issue, but that doesn't stop many manufacturers in China from making cables for Apple products, so I'm sure it's just a matter of time.
EDIT: Not to go too off topic here but I found these three on eBay, all of which state fast charging. Anyone tried them?
http://cgi.ebay.com/2x-Home-AC-Char...Accessories&hash=item4840fd2d20#ht_1417wt_905
http://cgi.ebay.com/Barnes-and-NooK...ccessories&hash=item20bb08ebc0#ht_2022wt_1139
http://cgi.ebay.com/USB-Home-Wall-A...ccessories&hash=item1c1d5bed4a#ht_4300wt_1727
Phatdawg said:
Well, it might connect but won't give you the fast charging ability of the stock nook cable (which has additional connections for the 3-4 hour rapid charge). Provided that you connected to a 2 amp source, you might get a charge after 8 hours or so, and if you had a 1 amp charge, _IF_ your screen was off perhaps after another few hours (12?).
Click to expand...
Click to collapse
So, I tend to charge my devices overnight, so 2 hours or 6-8 hours really doesn't usually matter to me.
I see this dock as being a neat way to use the device at my desk (twitter feed, play music, etc...) as well as a stand to charge with.
Some folks have mentioned that standard MicroSD's don't charge the nook. I have used many different charging cables for my Samsung Captivate and found that the nook charges (and never complained about the time to charge).
Also, I checked out the Flyer at my local Best Buy store. The Flyer has a proprietary connector that is a modified MicroUSB connector. However, a standard MicroUSB also works. Looking at this item, seems that the stand from HK uses standard MicroUSB.
I'm guessing that the biggest issue I could come up with is 'fit' of the nook in this stand. Specifically, do I need to modify the stand so the back of the nook sits flush against the stand and doesn't put too much stress on the USB connector (assuming there's some space between the nook and the stand).
Any update on this?
Sent from my Droid using XDA Premium App
Just got it in the mail - I'd rate it an 8 out of 10.
Will post pics soon, but first impressions:
- Looks really good, blue indicator light when connected / Charging
- Hard to first figure out alignment, then it gets easy
- Fit:
- A little extra room between the back and the stand, not much wobble. Could always use tape or something to close the gap
- A little wiggle between the bottom edge and the stand. Again, some kind of black padded tape would easily resolve and look good. Not sure if I will event attempt as not a hassle yet
No idea on charging times, never been an issue for me as I'll use this:
1) At my desk (put a twitter feed or music on)
2) Overnight charging (3 hours or 6 hours don't really matter to me)
Again, pics to come soon!
Thanks keep us posted.
Does it hold the nook in landscape? I know it wont charge, but curious to know if its capable with the micro USB being there. Maybe add a pic with it in landscape as well.
Thanks
Sent from my Droid using XDA Premium App
Landscape is not advised.... If you can balance the device on there, will scratch up your nook.
Sounds like a good option. Can't wait fto see those pics.
That's excellent news. Can't wait to see the pictures. If you can get an estimated charge time as well, that would be excellent.
Sent from my NOOKcolor using XDA App
I'm excited to see some pictures whenever they get posted, this looks like a good deal.
Add me to the list of those eager for pictures...
Arg.
So my otherwise adorable 1 year old somehow got his hands on my Captivate this weekend. When we finally caught him, he was chewing and slobbering on it pretty much right where the USB port is. After getting the phone back out of his grubby little hands, my wife and I took it completely apart and have had the whole works soaking in rice for a day or so.
When I put it back together, it booted just fine, and everything seems to be in working order. Except...when I plug a cable into the USB port, it doesn't charge, and it doesn't connect to my computer for storage mounting/flashing. This would be a bit of a problem.
I've checked for obstructions in the port itself and there don't seem to be any. I can get by for now without charging because my wife and I have the same phone (so we can periodically swap batteries...), but she's leaving town for two weeks at the end of this week. I really don't want to have to buy a new phone...so any ideas on fixing this would be greatly appreciated.
Sent via Captivate (powered by CyanogenMOD)
Once the USB port is gone its gone, you would need to get an external wall charger for it and a wifi file browser.
there might be some moister in it yet, but generally the captivates had issues with the USB port just flaking out like that. Its a common problem for this phone, and also has happened to mine.
Or you can just pay ~35$ to get it fixed, look in my sig. They are good!
b-eock said:
Or you can just pay ~35$ to get it fixed, look in my sig. They are good!
Click to expand...
Click to collapse
Hmm...I didn't even realize that was an option. I'll be looking into that. Thanks!
They fixed mine and it works great. I would also order a new cable from them for like 7 bucks. It is all well worth it!
interesting, didnt know about that one either
Update:
It's apparently not *quite* as dead as I thought. It's still not recognizing my computer or telling me that it's charging...but apparently it is actually charging my battery. I plugged it into my computer just to see and left it. It never said that the phone is charging, but when I came back a few minutes later the battery meter had gone up, and it's still doing that fairly consistently.
That's at least good news for now. Even if the USB transfer is dead, I'm still OK as long as I can charge. As long as I don't have to use download mode...
That sounds like a bad cable, just buy one of those first, cheaper and easier to check!
b-eock said:
That sounds like a bad cable, just buy one of those first, cheaper and easier to check!
Click to expand...
Click to collapse
It's nothing to do with the cable. We have four USB cables and two different car chargers. It's the same thing with all of them, and they all work perfectly on my wife's phone.
Sent via Captivate (powered by CyanogenMOD)
My first Captivate had a USB port go bad.. I tried 10 different cables and decided for some reason it was a ROM issue and got into download mode.. well let's just say I was buying another Captivate the next day.. lol
I did resurrect it by buying a Captivate with a broken screen on Ebay cheap. Combined the two and it's actually a later production and the GPS works good compared to hardly at all before. M yold screen and new guts.. Now I have a spare phone to try new Roms on without messing up my daily driver.. (Dark Knight 4 atm)
I see broke screen Captivates for $40-80 on Ebay regularly..
My wife also has a captivate with a dead USB port. So I went on amazon and searched for captivate batteries and external charger and found a package that came with 2 extended life batteries and the wall charger that charges one separatly from the phone while you use the other in the phine . Its made by Laza wireless and both batteries and charger was 15.99 and shipped free. Got it in two days and works great and was a whole lot cheaper than a phone.
Sent from my SAMSUNG-SGH-I727 using XDA
Sorry to resurrect such an old thread but, I have had the same problem for months also caused by a toddler sucking on the phone and cables. I swap batteries daily. stock/1800/2430 mah. I am curious if anyone knows of a wireless charging option. I know my wii batteries are inductive and it is just the new battery and charger on a stock remote. is there an inductive charger and battery available for cappy? is wireless charging dangerous to the phone if it wasnt designed with it in mind? for that matter is anything available for anyother phones besides the lumia 920 and maybe nexus I think?
cheapest, best option is to get the USB port repaired by mobiletechvideos.com, imho.
I know of no induction solution for captivate that works without a good usb port.
I figured and also thought the Cappy wouldn't be a device supported by a new battery developer when there is so many newer ones out.
Thx
Sent from my SGH-I897 using xda app-developers app
Hi Guys,
Anyone tried Solar Powered Battery Chargers?
Looking at this one here :
source : 6000 mAh Solar Powered Mobile Power Extended Emergency Battery - Obostore
I'm looking fior the same. I bought recantly GOAL ZERO Nomad -7. Instead of charging it drains the power of my Note-2. I guess it is because of the non-standard pin-out (11 pins), so this is the one I would definitely not recommend.
Arthur
SINGAPOREAN said:
Hi Guys,
Anyone tried Solar Powered Battery Chargers?
Looking at this one here :
source : 6000 mAh Solar Powered Mobile Power Extended Emergency Battery - Obostore
Click to expand...
Click to collapse
I haven't seen any positive reviews about any solar powered chargers. The problem is that you need to apply voltage (bias it) in order for it to work. Like those solar power panels on the roof of people - if you loose a power to the house, they will not work So they might be draining instead of charging lol!!!
Don't know for sure how it works and if it works and how efficiently. So if anybody has any real life experience, please chime in. Most of the big name external battery vendors don't want to carry this product. I only seen it on ebay and Aliexpress.
I personally haven't tried one. From what I've seen about them, they're very fast, and can be nick-picky about the angle to the sun. On top of it, you'll probably need to check what's the output versus what the phone needs to change.
I think you're probably better off finding some kind of crank mechanism and use that to change the phone. Plus, you'll get a little work out too; you'll live longer to enjoy your phone, 8)
I have a voltaic that I use when camping or on extended hikes. It comes with a 3000mah battery. I haven't used it on the Note2 yet, but used it a lot with my Fascinate. The battery works fine as backup power, though it charges slowly and the phone pretty much has to be off for it to be effective. It takes most of a day of full sun to recharge the contained battery. It's ok if you're going to be away from power for a week, but for less than that I think just an extra battery or two fully charged would work better.
I think we just need to find or build one that supports 2.1 amps (ideally) but anything over 1amp should do something.
willfck4beer said:
I think we just need to find or build one that supports 2.1 amps (ideally) but anything over 1amp should do something.
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I have one I found at Best Buy a couple years ago. It's a single amp box, so charges my Note II very slowly. I've used it on my bike when I'm out on rides. I have a mount for it and my phone. While riding, I use bluetooth headphones. It does work, but like someone else said, there needs to be one with 2.1 amps.
I as well have a Nomad 7, but mine charges my note without issue, although I will admit, it is impractically slow.
I bought this couple of months ago, charging the phone is a wii bit slow but it works like a champ!
http://www.ebay.com/itm/Opteka-4000...iPad-iPod-Android-Phone-Charger-/370665663271
I wouldn't mind if the solar power was a "backup" to a regular external battery, but if all it did was solar I wouldn't be interested.
Sent from my SAMSUNG-SGH-I317 using Tapatalk 4 Beta
WICKED... just stumbled across this on ebay. If you are a roll your own DIY type and want to charge a rapid charge device like Note2 or a tablet or something, this might be a great thing to look at.
http://www.ebay.com/itm/DC-DC-5V-36...018?pt=LH_DefaultDomain_0&hash=item2c700c47c2
I, personally, don't like the mini-usb connector... seems kind of goofy. I'd prefer just two wire terminals to connect solar panels to.
But yeah, if you've got high voltage solar setup... e.g. anything between 5V and 36V and want to have a clean, regulated 5V usb compliant output, this would likely be your guy. I'd also want to make sure it really does work with note2 - in terms of negotiation of currents higher than 100ma. YMMV FWIW
AND if you don't need note2/tablet 2A...
this guy seems like about the right fit.
http://www.ebay.com/itm/DC-DC-12V-2...965?pt=LH_DefaultDomain_0&hash=item4d0c738c65