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Trying to gauge interest for a pet project.
How many of you would be interested in an adapter that would allow you to use a laptop "brick" to charge your G-Tab?
First design is going to be for the Dell laptop power supplies (since I have a plethora of them )
If there is enough interest in other laptop supplies I will look at different connectors as well.
No idea on mfg costs right now, need to prove concept first. Cost target (Resale) is ~$10
I'd like to see and adapter that fits the Dell D and E series Latitude chargers.
That's the one I'm aiming for initially. Newer series Dell with the ROUND receptacle. I "think" it might still work with the octagonal receptecles though. Need to get some samples and try it out for fit.
Cost might be sligthly higher than I originally anticipated (Still <$20 though) - the damn Dell connector is a quasi-custom and cheapest I've found is $6+ shipping....grumble....
If the old receptacles work, that brings the cost down.
Haven't priced the tablet side connector yet, but I'm guessing it's going to be a couple bucks with a lead on it.
More to come....hoping to have some parts by next week to start building up protos.
I'd be very interested in something that would plug into a USB port on a desktop or laptop or any USB power supply.
I have a couple of D-Series laptops and would love to use the same charger for them and my G-Tab. I would definitely buy one.
nunjabusiness said:
I'd be very interested in something that would plug into a USB port on a desktop or laptop or any USB power supply.
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If you have USB3.0 it "might" be possible as that has higher current carrying (3.6W) potential than USB1 and USB2.0 which are ~500mW at best. That's one disadvanage to the big ass battery in these things, which I think are 7.2V, so they usually require a higher input voltage (hence why we get 12V in). Even with USB3.0 though, we are still looking at long (10x+) charging times versus the wall-wart.
It's "technically" possible to step up the current USB 5V to 12V, but the power level is so low that it would take forever and a day to charge ( or about 48x longer than the current 12V/2A wall charger)
without a proper teardown though, it's tough to tell what the charging circuit looks like on the board. My guess is it's a 12V / 7.2V buck charger as it's cheaper than a boost/buck to implement. My bigger question about the internal charging circuit though is what it actually draws in terms of power...the wall wart is rated for 12V/2A, but those are usually overbuilt to prevent them from blowing up. Hoping it's closer to 1A draw, but again without knowing what the charger chip is, there's no (Easy) way to determine this without probing the connections.
bnovak said:
How many of you would be interested in an adapter that would allow you to use a laptop "brick" to charge your G-Tab?
Click to expand...
Click to collapse
Count me in as well. I travel a ton for work and having one less charger to stuff in my carry-on would be great - well worth the sub-$20 price.
I currently pack a PA-4E, stock charger for a Latitude E6510
I would be interested, though I have an ASUS laptop at the moment.
On a side note, if you did only decide to make one and it were for Dell, anyone could purchase a universal adapter and care the one adapter and two tips. Just a thought.
Hey all, I was looking into getting a car power adapter for hte G-Tab. I looked on Electroniccrap.com, but everything is usually "out of stock." He sells the iGo systems, which Radio Shack also sells. So, I went to my local RS to see what I could find. They didn't have the iGo stuff, but did have enercell converters/adapters, etc.
As I was browsing, I found 2 12VDC car chargers (if you were curious, the "B" plug fits in the G-Tab). But then I noticed a "150W power inverter." It's a car plug that has 3 AC outlets and 1 USB outlet on it. This is ideal for me becuase I usually charge more than one thing when on long trips, GPS, Zune, NDSi, DVD player, and now the G-Tablet. The issue I'm having is that the back of the package said that it's output was 5VDC, typical of most car adapters. I asked the girl that was working if my AC adapter for hte G-Tablet would do it's own conversion, making it's output 12VDC. She said that it would, and said that each device's AC adapter will convert as needed.
Now, my question, is this true? The charger device does have a fuse on it, and some reviews I read (after purchasing, I know) said that it's worked fine for laptops, DVD players, etc. The main complaint is the hum of the cooling fan that's built in.
I briefly tested it today, with my G-Tablet. The battery indicator said it was 100% charged (but we all know that isn't reliable) I didn't take it out of it's case ot see what color the charge light was, but the charge indicator idn't have the lightning bolt in it, indicating a charge.
Does anyone know if she was telling the truth, perhaps? It's a pretty sweet setup, being able ot use AC adapters for all of my devices in the car, if it works as advertised, anyway. I just couldn't imagine why they would create a charger that has 3 5VDC AC outlets on it...
TJEvans said:
I asked the girl that was working if my AC adapter for hte G-Tablet would do it's own conversion, making it's output 12VDC. She said that it would, and said that each device's AC adapter will convert as needed.
Now, my question, is this true?
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Click to collapse
of course not, how can someone who works in an electronics shop says so ?!
The 5VDC on the package is most probably the output of the USB port on the inverter.
The inverter should output 110 (or 220v) AC @ 50/60 hz, else you wont be able to use your wall plug adapters.
True the GTab adapter will output the proper voltage (12v DC 2A), but its input must be 110v (220v) AC.
My advice is not to use inverters for small hand helds : GTab, GPS, MP3 players .. etc.
Instead, use compatible car adapters, if you need more than one, get a splitter for your socket.
By the way, here is a compatible (and cheap) car adapter for the GTab: http://cgi.ebay.ca/Car-Charger-Koda...ccessories&hash=item51998a1f04#ht_1399wt_1341
Things may be different in Canada, but here in Pittsburgh, PA, just because somebody works at a certain store, doesn't necessarily mean that they know anything about the items they carry.
we actually have a car power splitter, it worked fine in our Honda Element (that the wife hit a deer with) but the Scion XB we have doesn't have much room between the outlet and the shifter lever, so the splitter doesn't quite fit that well. It is adjustable, but we haven't been able to find a position that works.
In fact, we have a car to double USB port adapter right now, that we are powering the GPS and Zune with, even with just the 2 USB cables plugged into it, it's tight.
aasoror said:
of course not, how can someone who works in an electronics shop says so ?!
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Thanks for the tip - bought one!
FWIW, I'm pretty sure the 'girl in the shop' was simply saying that if you plug your 115/220VAC adapter into the inverter, the adapter will produce whatever it produces when plugged into a wall receptacle, which indeed it should so long as the inverter can produce 24W - and she was just following standard retail practice: 'sell what ya got', and the store *had* an inverter.
Seems like an overly complex way to get 12VDC out of a (nominally) 12VDC system when all you probably need is a regulator.
Another option:
http://www.amazon.com/charger-adapt...OQLG/ref=sr_1_1?ie=UTF8&qid=1307712365&sr=8-1
Only one review, but it's a positive one.
TJEvans said:
Things may be different in Canada, but here in Pittsburgh, PA, just because somebody works at a certain store, doesn't necessarily mean that they know anything about the items they carry.
we actually have a car power splitter, it worked fine in our Honda Element (that the wife hit a deer with) but the Scion XB we have doesn't have much room between the outlet and the shifter lever, so the splitter doesn't quite fit that well. It is adjustable, but we haven't been able to find a position that works.
In fact, we have a car to double USB port adapter right now, that we are powering the GPS and Zune with, even with just the 2 USB cables plugged into it, it's tight.
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When I had my Scion xA, there were two power ports. One as part of the dash, the other was between the two front seats... the xB doesn't have this?
5V won't work. The power management chip is designed to handle 9 to 18V, but any car charger that is 12V out and fits will be fine.
Go to Radio Shack and buy the coiled Universal Accessory Charger. Its regulated 12V dc @ 2Mah.
Mine has been working excellent for months, although i can hear a high pitched sqeel in my audio system when the charger is on with no audio playing. I attribute this to a ground issue, not the charger...
Sent from my G Harmony v2.4 using XDA Premium App
Seems the OP answered his question but I think pointing out a couple of things may be helpful to others.
Haven't met anyone working RS that I thought was stupid but almost none know anything about the electronic components I buy. To think they have vast knowledge of and experience with electrictronics isn't logical.
Most things work with inverters but not all. I have some kind of a power supply, don't recall what, that says not to use it with an inverter. It's true you get 110(110,115,117,120) depending on how it's measured(min,avg,rms or max)) volts out of your home receptical but it's a sine wave. The ouput of a consumer inverter is a square wave.Square waves can cause noise or even overheating in some devices.
The other thing is that to get 110 volts the inverter draws 10X the output current to convert it. With a 20 amp fuse on you cars outlet that means your limited to ~2 amps for your devices.The vehicles system is ~13.5V so that's 27W. If you look at big inverters you'll notice they have battery clamps. 3 AC outlets from a cigarette lighter outlet is way optomistic.
An inverter may be a good choice for occasional use but probably better to keep everthing DC otherwise.
Make sure the inverter shuts itself off if the cars vehicle voltage gets low(i.e.when it isn't running). You could end up with a dead battery or even a damaged one.
rbrainard said:
Mine has been working excellent for months, although i can hear a high pitched sqeel in my audio system when the charger is on with no audio playing. I attribute this to a ground issue, not the charger...
Kind of nitpicking but cars are not grounded. Ground is literally the electrical potential of the Earth. A bad connection on the power or common(chassis) can cause noise but a sqeal is unlikely. The squeal is almost definately the inverter.
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h3llphyre said:
When I had my Scion xA, there were two power ports. One as part of the dash, the other was between the two front seats... the xB doesn't have this?
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It's an earlier XB (2006) and only has the one outlet. When the car is in park, the shifter handle is literally about 5 inches away from the outlet. Having the double outlet plugged in, and angled up (adjustable) will allow some room, but then you are unable to grab the shifter.
I'll be driving to DC next Thursday, and wanted a way to power the GPS, G-Tab, e-cig battery charger, and whatever else my son decides to bring with us (NDSi, DVD player, his iPod touch, etc.)
To JJJustmee: The device does shut off when the car is off, so I'm good there. Also, the inverter itself has a fuse on it, so I assume that if overloaded, then the fuse will give on it, before it effects anything on the car. I don't necessarily plan on running all devices at the same time, more like, run the G-Tablet unplugged until the battery decides to start draining really low. The GPS will be running the entire time. Everything else may be charged for a bit, while other devices are no plugged in. I liked the design of this, becuase the car lighter plug is rather short, since there is a 3 foot wire leading to the AC/USB outlets, like a surge protector. It takes up very little room near the car outlet area. The other options that people posted will not work becuase of the space limitations. I could, and have (in the element) use the outlet splitter, then one double USB outlet, to be able ot handle 3 devices at once, but then we're talking about at least 7-8 inches of plastic pluggs sticking out, and into my shift lever...
JJJustMee said:
Seems the OP answered his question but I think pointing out a couple of things may be helpful to others.
Haven't met anyone working RS that I thought was stupid but almost none know anything about the electronic components I buy. To think they have vast knowledge of and experience with electrictronics isn't logical.
Most things work with inverters but not all. I have some kind of a power supply, don't recall what, that says not to use it with an inverter. It's true you get 110(110,115,117,120) depending on how it's measured(min,avg,rms or max)) volts out of your home receptical but it's a sine wave. The ouput of a consumer inverter is a square wave.Square waves can cause noise or even overheating in some devices.
The other thing is that to get 110 volts the inverter draws 10X the output current to convert it. With a 20 amp fuse on you cars outlet that means your limited to ~2 amps for your devices.The vehicles system is ~13.5V so that's 27W. If you look at big inverters you'll notice they have battery clamps. 3 AC outlets from a cigarette lighter outlet is way optomistic.
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Click to collapse
What you're saying isn't quite true. Min, Avg, RMS, or Max are not accurate figures that you can toss out without testing. The Max voltage of a 120v system is 177v, The Root means square (RMS) would be the nominal voltage or 120v. Regardless, when you say it draws 27w you're doing the conversion incorrectly. The only way to change from one nominal voltage to another is via the resistance. So you max can draw 20A at 12v (240w), or 2A at 120V (or 240w ish) via and inverter (assuming your inverter is sized accordingly).
baenap said:
What you're saying isn't quite true. Min, Avg, RMS, or Max are not accurate figures that you can toss out without testing. The Max voltage of a 120v system is 177v, The Root means square (RMS) would be the nominal voltage or 120v. Regardless, when you say it draws 27w you're doing the conversion incorrectly. The only way to change from one nominal voltage to another is via the resistance. So you max can draw 20A at 12v (240w), or 2A at 120V (or 240w ish) via and inverter (assuming your inverter is sized accordingly).
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Said it for me.
If it turns off as soon as you turn the key off it means the outlet is switched. Will protect the battery but also means it can't be used for anythihng while the car is off. Good or bad depending on usage. What I was talking about is the device being able to shut off when battery voltage goes below, say, 11.6v. Fuse and circuit breakers only protect from too high of an amperage draw. If your system wasn't switched it could still dran the battery. Like if the inverter was left on overnight/weekend.
Sounds like what you're talking about could be ok for a trip. Use the USB as much as possible. Lots more effeceint than the inverter. If you actually mean fuse, get extra. If it's a circuit breaker you'll be good to see what does and doesn't work.
Found one on ebay
Found one here
http://cgi.ebay.com.au/ws/eBayISAPI.dll?ViewItem&item=320690673489#ht_4544wt_937
Just ordered it about $12:00 US delivered. I will let you know how it goeswhen I get in about two weeks.
Igo told me a week ago, that they don't yet have a tip for the Gtab/Zpad but expect to do so by the end of the month
Spec
Here you are some pics of Malata official Car adapter. Maybe you can find some thing to help.
Car charger
Just ordered this from Amazon. (can't link yet - crap) so "30W DC/DC Regulated Adaptor for DVD" do your own search
13.34 shipped. Many more bucks directly from batteryspace
Will post again after I test it.
more info: it comes with two tips, neither of which fit the gtab. I had a proper size tip in our tool box so will check voltages tomorrow.
This has better 12V DC regulation than the oem ac charger.
Guys
YOU DO NOT NEED AN INVERTER TO CHARGE YOUR G_TAB IN THE CAR.
ANY 12VDC (output) charger will work. They are a dime a dozen if you know where to look. Just make sure the tip fits, and is tip positive (symbol will look something like this)
12VDC @1A
(-)-C-(+) with a dot INSIDE the "C" that is connected to the (+)
The power supply controller will work down to 9V and up to 18, which is fine for the 10 to 14V you'll get from a car adapter. Just make sure it isn't a step down.
They should be like $5. You might have to bust out the soldering skills though if you can't find the right tip.
Hi guys, does anyone here know where to buy the US adapter part of the charger? I am speaking specifically of the piece that goes into the charger. The two pronged plug insert itself. Here is a link of an item on ebay that includes the adapter with the charger.
http://www.ebay.com/itm/US-USB-Wall...ccessories&hash=item3a742ee563#ht_3518wt_1018
So ideally I'm looking to spend less than $9 (otherwise I can just buy above item and keep the charger as a spare). I don't want to use an US adapter on top of the Hong Kong one on my tab because it becomes way to bulky and would not fit the outlet near my bed. I'd need to use this outlet as its most ideal.
Thanks in advance for any replies.
EDIT: I'm going to post this in the galaxy tab 10.1 forum as well just so it gets more hits. Its a bit dead here with respect to there.
I think you'll have an hard time getting just the pronged plug...and that's 9$ with shipping included, so maybe it is better to just order the full charger.
...but you made me curious...
Contrary to my previous GT-P1000 charger, the charger on my new 7.7 (European edition) does not feature a USB socket on top where the USB plug then goes, like the one on the Ebay link. Instead, it features an integral cord coming out of the charger (a stand-alone USB cable was also provided in the package for PC connection purposes)
Do you mean that the US version features the much more practical "charger with USB socket + USB cable" solution?
This is important to me since I figured the chargers had been changed from model to model on account of a technical imposition (the cord end from the charger, on the tab side also features a different, slightly longer plug, when compared to the GT-P1000 one)
If it is the case that the charger format is optional, I will jump and get one of the "old" ones as the previous arrangement (charger + separate cable) is way more versatile.
XK
The US version charger is a usb charger adaptor. Also, it has the front plug portion changeable for regions if you have the fittings. I'll take pictures when im home
Sent from my DROID BIONIC using Tapatalk 2
I just wanted to let people know that Scosche just released a new dual 2.4A car charger. This is not a car charger that splits 2.4A between two ports, but one that has full 2.4A per port. You can charge tablets and phones at the same time. What I love about this charger, is that it sits flush in the car. No stick protruding out.
I used to have their older model, the 2.1A dual car charger USBC202M. I purchased it in May. When I saw that they had this one available on their site, I asked a representative through chat if I could exchange my USBC202M for the USBC242M one. He said sure and gave me the info on how to do the exchange. I only paid the shipping to them and got a brand new item. I did not send the original box or anything. Great customer service!
I will try this later on. I have a dedicated USB charge only cable so I will not run into any of the charging issues that some people might have using a data/charge cable.
The USBC202M and USBC242M are listed as the same price on SCOSCHE's website. The USBC242M is not up on Amazon yet, which is where I purchased the original charger.
Link to USBC242M: http://www.scosche.com/chargers/ipad-usb-car-charger-two-port
Link to the charge only cable I am using (nice 5ft): http://www.amazon.com/Specialised-M...=UTF8&qid=1385138950&sr=8-1&keywords=portapow . I like how it is a little thinner than the Mediabridge 6ft one that everyone seems to be using. And the connections are a little less bulkier as well so I am able to connect with my phone that is using a Spigen Slim Armor.
Pics up soon.
How do you use that micro usb charging only cable with the Note 3?
CreekDirt said:
How do you use that micro usb charging only cable with the Note 3?
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It's like any other USB cable, you just plug it in to a USB port. It allows AC charging regardless if you plug it into an AC adapter or a USB port on your PC. This will not allow any data when used in a PC.
CreekDirt said:
How do you use that micro usb charging only cable with the Note 3?
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http://www.mobilefun.co.uk/blog/2013/11/samsung-galaxy-note-3-usb-3-0-and-microusb-compatibility/
Just look at your Note 3's USB 3.0 port on the phone. See that one slot is bigger. Thats where you plug the USB 2.0 cable into. It will work just fine.
USBC202M
That same model number is on Amazon. it lists it differently though..
Dual 10 WATT (2.1A) USB Ports
http://www.amazon.com/Scosche-USBC202M-Charger-works-iPhone/dp/B0077PM3KG
It is only $16 which is a lot less than $24
UPDATE
I see the difference. The packaging you have a picture of has that Model number listed as USBC242M not USBC202M
The lesser should be more than adequate for the Note 3 as it exceeds the 1.8A it will really use at the most.
krelvinaz said:
USBC202M
That same model number is on Amazon. it lists it differently though..
Dual 10 WATT (2.1A) USB Ports
http://www.amazon.com/Scosche-USBC202M-Charger-works-iPhone/dp/B0077PM3KG
It is only $16 which is a lot less than $24
UPDATE
I see the difference. The packaging you have a picture of has that Model number listed as USBC242M not USBC202M
The lesser should be more than adequate for the Note 3 as it exceeds the 1.8A it will really use at the most.
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Yeah. I had the original USBC202M that you see on Amazon. I paid that back in May. I contacted Scosche through chat on their website (took about 30 min before someone was even available) and asked if I could just swap it with the newer model since they were selling it for the same price. He just needed the receipt (which showed my cost of $16) when I send my original one. It was done as a warranty exchange since it was within a year.
I know 2.4A is more than enough but this is great if you also wanted to charge a tablet as well. Or if people were running kernels that allowed more than 1.8A charging.
Here's a much cheaper Anker dual 2.4A that I was looking at but hate how large it is. The price is soooo nice too. $11.99
http://www.amazon.com/Release-Anker...5144055&sr=8-1&keywords=2.4a+car+charger+dual
jteran5 said:
Here's a much cheaper Anker dual 2.4A that I was looking at but hate how large it is. The price is soooo nice too. $11.99
http://www.amazon.com/Release-Anker...5144055&sr=8-1&keywords=2.4a+car+charger+dual
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Click to collapse
The Anker is good and the price is right.
cpufrost said:
The Anker is good and the price is right.
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Anker makes quality products. The price is great but I was really looking for a flush look when installed in my car. Most of my interior is black and this is a bright pearl white. Is there an advantage of a stick design as opposed to a flush?
jteran5 said:
Anker makes quality products. The price is great but I was really looking for a flush look when installed in my car. Most of my interior is black and this is a bright pearl white. Is there an advantage of a stick design as opposed to a flush?
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Click to collapse
Yes, looks aside the compact version is going to run much hotter if both outlets are used at capacity.
jteran5 said:
Anker makes quality products. The price is great but I was really looking for a flush look when installed in my car. Most of my interior is black and this is a bright pearl white. Is there an advantage of a stick design as opposed to a flush?
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Spray paint.
KroniK187 said:
http://www.mobilefun.co.uk/blog/2013/11/samsung-galaxy-note-3-usb-3-0-and-microusb-compatibility/
Just look at your Note 3's USB 3.0 port on the phone. See that one slot is bigger. Thats where you plug the USB 2.0 cable into. It will work just fine.
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Click to collapse
Yeah I had totally missed that until I saw this thread. After posting the question I looked at the port and saw that it is a two in one port. Just the other day I was bummed that I forgot the N3 charging cable at home. I spent all day reserving battery when I had my S4 cable in my bag the whole time. Doh!
I am getting one of these. So basically this is overkill right? Since 1.8a is max? Does the charge only cable benefit more in any way than a charge/data cable or are the charging amps the same?
Update.
I ended up getting the less amp USBC202M via Amazon http://www.amazon.com/gp/product/B0077PM3KG and ordered two Charging MicroUSB cables also from Amazon http://www.amazon.com/gp/product/B009W34X1I
The cables are designed for full charge (just like being plugged into an AC charger) but in the car. I can charge my Note 3 and Tablet both with 1800mA each. The cables are straight 6FT heavy cables which are hard to break, and give you lots of room to use the phone or tablet while it is plugged in.
Just like having AC power in the car/truck with fast charge times
The difference between wall charging and usb charging, is that the wall charger ties the two usb data pins together. Phones detect that and charge slower on usb to protect computer ports from high current drain. Good car chargers solder together the two data pins to cheat the phone into thinking that is connected into a wall charger and thus charge the fastest possible.
You could find usb cables that internally connect the data pins, however that cable won't allow you to send data.
This applies to most usb charged devices, like android, iphone, ipad, etc.
---------- Post added at 10:37 AM ---------- Previous post was at 10:15 AM ----------
The Scosche does not work with the galaxy s5; the anker does but is larger physically.
I found my dual micro high current car charger on boxwave. It was cheap, and works great. No problems at all. The phone shouldnt pull more power then it needs. If so id check with tech services.
Thinkfreshdell said:
I found my dual micro high current car charger on boxwave. It was cheap, and works great. No problems at all. The phone shouldnt pull more power then it needs. If so id check with tech services.
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Don't worry. If the charger is required more power than is able to provIde it will just cut to the top.
Output of that plug states 10v 12w
Official note 3 charger is 5.3v 2amp I cant see how this could be good for your phone/battery.
idone said:
Output of that plug states 10v 12w
Official note 3 charger is 5.3v 2amp I cant see how this could be good for your phone/battery.
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Where does it say 10v?
Anyway, I've finally bought the Anker 24W, which is compatible with the Galaxy S5, so there are much higher probability to be compatible with newer devices like Galaxy Tab S, Galaxy note 4, etc.
scandiun said:
Where does it say 10v?
Anyway, I've finally bought the Anker 24W, which is compatible with the Galaxy S5, so there are much higher probability to be compatible with newer devices like Galaxy Tab S, Galaxy note 4, etc.
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Second picture in the first post, twards the bottom left.
idone said:
Second picture in the first post, twards the bottom left.
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Obviously this is a mistake, it's referring to input voltage.
12V USB Adapter
Input Voltage: 10-16V
USB Output Voltage: 5VDC, Dual 12 Watt (2.4A)
http://www.scosche.com/chargers/ipad-usb-car-charger-two-port
Note that some car chargers allow 12-24V because you can use also trucks and vans for charging. Doesn't seem the case for Scosche.
what is the Micro USB Data Sync Charger for lg g3? my budget is about 15 Euros?
Search ebay?
Chargers
I have a three 5 way device chargers in my house, one of them adapt to the amplitude needed by the device, and two fixed amplitude. provide between 20~30A of power at 5v.
Anker 5 way charger - variable
Technet 5 Way Charger - fixed
EasyAcc 5 Way Charger - Fixed
Cables
Best cable ive ever used is the official oneplus one cable. Its pretty, slim at the ends, and thick enough to get a few amps of current through, however they normally always sold out
Short thick cables are best for transferring power without loosing too much to resistance and heat etc i can not find a link may have got them on ebay, however below are some high quality mid-long sized cables, always carry enough current for me:
EasyAcc set of 3 thick good quality cables
AVOID at all costs
stupid thin noodle cables. made the mistake of getting a pack of 12. they break after a few weeks and carry nearly no current!
Pretty but stupid and useless usb cables
If you can find it, the blackberry 1.8amp chargers with the cable integrated in them, are the best and fastest charger I have ever used, and you can get them pretty cheap (I got 3 for less than $25). these chargers can and will get up to 1.8 amps easily, I always get above 1.8 amps when charging. It actually takes like 1 hour and 30 min from 2% to 100%
I think they are the chargers for the playbook