[Q] car charger help - Epic 4G Q&A, Help & Troubleshooting

hey wondering if i need if i need a new charger or if i can fix it my car charger has to b a certain way 4 it 2 charge and a little bump will knock it off. it is a factory charger.

Nabisco_12 said:
hey wondering if i need if i need a new charger or if i can fix it my car charger has to b a certain way 4 it 2 charge and a little bump will knock it off. it is a factory charger.
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The wires are so thin and crappy. You would need to be able to strip it and reconnect the wires better. Grab a couple of Honk Kong chargers for a buck or so a piece.

Related

Total GPS/Car charging kit - $11.37!

So I went onto monoprice.com and was able to get a complete car kit that included a cigarette to USB adapter, 3ft USB to 5-pin microUSB cable, and universal car mount, all for a total of $11.28 $11.37 including shipping!
the individual items are:
cigarette to USB
http://www.monoprice.com/products/p...=10826&cs_id=1082602&p_id=3523&seq=1&format=2
USB to 5-pin MicroUSB
http://www.monoprice.com/products/p...=10303&cs_id=1030307&p_id=4867&seq=1&format=2
Car charger
http://www.amazon.com/gp/product/B003WRBGK6/ref=oss_product
Universal GPS car mount
http://www.monoprice.com/products/p...=10840&cs_id=1084001&p_id=5272&seq=1&format=2
I hope this helps anyone who is looking for a cheap but effective mounting system for their car
EDIT
The adapter did not charge the phone correctly, so my phone would drain faster than it would recharge. I went to amazon.com and bought a car charger that should work great, and only ends up making the total a few cents higher
Wow. Good price there.
The output of the car charger is 1000ma, the stock wall charger is 700ma I believe. You think it'll hurt it? If anything, I think the phone will just get warmer than normal when plugged in.
that's the car mount I use. Picked it up from there, really cheap but you get what you pay for. Its an ok car mount but not great.
Sent from my SGH-T959 using XDA App
speoples20 said:
that's the car mount I use. Picked it up from there, really cheap but you get what you pay for. Its an ok car mount but not great.
Sent from my SGH-T959 using XDA App
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Well hey, it'll work right? Lol.
As for the charger, I'm not sure. I don't think I'll do anything bad really.
dam thats not a bad price!
Just a FYI
Even though the car charger is rated at 1000mA, it does not have the D+ and D- pins shorted together. This causes the phone to think it is connected to a data only device (and not a power supply). Because of this, it only draws 500mA, which when using with Navigation actually causes more drain than what the charge is.
It's a simple fix though. Just pull apart the charger, and solder the middle pins together (look on the underside of the board, and solder together the two middle solder points). The proper way to do it, and the way I did it, was to bridge it using a 200ohm resistor.
Ask that kinda sucks. Well I'll see how it works before I try anything. Is there a canker on that site that will work correctly? Or is the problem with the car to usb rather than the usb cable itself?
I bought one of these chargers for my duaghter before this thread and it does not work with her Vibrant. Guess I will have to mod it.
jinx8402 said:
Just a FYI
Even though the car charger is rated at 1000mA, it does not have the D+ and D- pins shorted together. This causes the phone to think it is connected to a data only device (and not a power supply). Because of this, it only draws 500mA, which when using with Navigation actually causes more drain than what the charge is.
It's a simple fix though. Just pull apart the charger, and solder the middle pins together (look on the underside of the board, and solder together the two middle solder points). The proper way to do it, and the way I did it, was to bridge it using a 200ohm resistor.
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You have to be a hard core tweaker to break down an solder a $2 cable. I wasted more than $2 worth of time just reading the post about it.
Ok, so it didn't work. The phone just said that the usb had been plugged in, but it didn't charge. I took a pic of what the charger looks like torn apart, can you tell me where I need to souder? Am I going to have to tear open the usb casing, or is it something I can do without tearing it apart any further?
Sent from my SGH-T959 using XDA App
So I grabbed another car-to-usb thing, and now it says It's charging but It's apparently draining faster than it is charging :-( it doesn't even seem to be slowing down the drain. Do you guys think that a different cable might affect things, or should I just get a new charger/adapter?
Sent from my SGH-T959 using XDA App
freekyfrogy said:
So I grabbed another car-to-usb thing, and now it says It's charging but It's apparently draining faster than it is charging :-( it doesn't even seem to be slowing down the drain. Do you guys think that a different cable might affect things, or should I just get a new charger/adapter?
Sent from my SGH-T959 using XDA App
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I don't have this charger, but try using the cable that came with the phone. If its the same, then try to exchange it or using a different cable.
I also bought mine from monoprice and it does not charge. It only drains .
Will look for alternatives.
Pneumatic said:
You have to be a hard core tweaker to break down an solder a $2 cable. I wasted more than $2 worth of time just reading the post about it.
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Click to collapse
I just did a few quick searches, because like a few others have said, it drains faster than it charges when using navigation. Not good if you're on a long trip.
Also, it is not the cable itself it's the charger that is not correct. I used both a monoprice wire and the oem one that came with phone. Just as an update, I have noticed that while soldering the points helped a little, it is still not pulling as much as even the stock wall charger (which is only rated at .7A). I found this out by going to the file /sys/class/power_supply/battery/batt_chg_current.
-While plugged into the wall ithe value is showing 1050 on average.
-Plugged into usb it shows 850 on average
-On the modified car charger around 900 on average.
So even with the mod it still doesn't pull the full amp and still drains a bit quicker than the charge
freekyfrogy said:
Ok, so it didn't work. The phone just said that the usb had been plugged in, but it didn't charge. I took a pic of what the charger looks like torn apart, can you tell me where I need to souder? Am I going to have to tear open the usb casing, or is it something I can do without tearing it apart any further?
Sent from my SGH-T959 using XDA App
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You can try the fix and see if you get better results than me. If you look at the port that you would plug in the usb cable, (from the angle you took the picture) you will see four pins "bend" down into the pcb board. These are the four pins I am talking about. The outside two are for power. The middle two are your D+ D- (data) pins. if you flip over the board you will see the 4 factory solder points, just add a dab of solder to the two middle points.
I bought this combo as well and the charger works fine for my usage: pandora on my one hour commute. I can't get navigation to work right (and I know how to get to work so I have not tested that.
Only flaw so far is that the audio cable from my phone placement on the windscreen to the aux-jack in for my stereo is an inch too far than my cable can reach. Time to get a longer cable.
I just went ahead and bought this on amazon.com
http://www.amazon.com/gp/product/B003WRBGK6/ref=oss_product
This should do the trick, and when coupled with the gps mount is only a couple cents more than buying the adapter+cable
it would make the total package... $11.37
what do you guys think about this one?
http://www.amazon.com/Portable-Char..._21?ie=UTF8&s=wireless&qid=1282314027&sr=1-21
suppose to replace car / wall charger as a one unit...
The new car charger works great when my phone is asleep it will fully charge in under an hour! The only thing is, with my screen all the way up using gps it still drains a lot faster than it charges. When I turned the screen down, it didn't seem to go down at all in the 5 or 6 minutes of driving I did. Does this screen really suck THAT MUCH power??? Are there any chargers out there capable of charging this phone well enough to allow for full screen brightness while using the gps functionality?
Sent from my SGH-T959 using XDA App
freekyfrogy said:
The new car charger works great when my phone is asleep it will fully charge in under an hour! The only thing is, with my screen all the way up using gps it still drains a lot faster than it charges. When I turned the screen down, it didn't seem to go down at all in the 5 or 6 minutes of driving I did. Does this screen really suck THAT MUCH power??? Are there any chargers out there capable of charging this phone well enough to allow for full screen brightness while using the gps functionality?
Sent from my SGH-T959 using XDA App
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I'd like to know the same thing.
Sent from my SGH-T959 using Tapatalk

Charging Requirements

Does anyone know what the power requirements are/will be for the XOOM? I expect it to have a good battery, but I still want to set up or simply buy a solar charging system for when I am not home. I might utilize the barometer to try geocaching.
Also, will it be trickle chargeable over USB?
I have the same question on USB charging. We know it has its own AC charger and special port. I asked on another forum this question and will post back if I hear anything.
Xoom manual is out on the web and it clearly states no charging via USB.
Gamul1 said:
Xoom manual is out on the web and it clearly states no charging via USB.
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I guess the question now is what is the voltage of the charger. It has a car charger so the voltage is hopefully not high. I want to be able to charge it with my 6.5w solar panel.
Gamul1 said:
Xoom manual is out on the web and it clearly states no charging via USB.
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So how do you charge this thing in your car?
blk98gt said:
So how do you charge this thing in your car?
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If you have not yet tried the iGo tips/chargers, I strongly recommend you consider. Instead of a gazillion chargers, you change the tip. I picked up one for my laptop that works both in my car and house. It came with tips for almost every laptop imaginable so I can let others charge in my car, too. I am guessing one of my laptop tips might work for the xoom. Also the laptop charger has a USB port so I can charge my laptop and a device off so USB at the same time.
It would seem 5V would be the norm. Its the amperage that I am wondering.
We know the ipad in which this tablet draws its battery comparison uses 5V and 2.1amps.
We will find out soon enough
Sent from my PC36100 using Tapatalk
The charger is a 12V 1.5A charger. The tip is not a common one; definitely small and looks like it will break easily. I hope decent options come soon for using the contact dots.
JanetPanic said:
The charger is a 12V 1.5A charger. The tip is not a common one; definitely small and looks like it will break easily. I hope decent options come soon for using the contact dots.
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I wonder why they went with this kind of connector. Too bad they didn't spend the money to include some kind of inductive charging system. It wouldn't have increased the cost of the tablet that much, maybe $10 in parts.
I just checked EBay and I found combo silicone case + "micro USB car charger" for the xoom. I wonder if the car charger is legit.
Anyone bought a car charger yet? Motorola's is a bit pricey at $30.
Slimgym20 said:
Anyone bought a car charger yet? Motorola's is a bit pricey at $30.
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i didn't even know there was one... vz/bb didn't have it when i picked my xoom up. i have an inverter but might be good to leave charger at home and just use one in my car. link? 30 is a bit pricey, but in line with what they charge, usually you can get the same thing for 5 on ebay/amazon after a few months. link? all i see are usb car chargers.
diaa08 said:
i didn't even know there was one... vz/bb didn't have it when i picked my xoom up. i have an inverter but might be good to leave charger at home and just use one in my car. link? 30 is a bit pricey, but in line with what they charge, usually you can get the same thing for 5 on ebay/amazon after a few months. link? all i see are usb car chargers.
Click to expand...
Click to collapse
Its just on their accessories page for the Xoom:
http://www.motorola.com/consumers/U...toid=8159a96331fec210VgnVCM10000081bbb00aRCRD

Best car/wall charger all in one, high amp

So I want a fast charging car charger that is also a wall charger. I have read some threads on here stating the following:
alphadog00 said:
Unless the charger or the cable has the data lines shorted, the phone will only charge at USB rate (~500mA). Even if you have a 1A car charger, the best you will get is USB speed UNLESS you connect the data lines on the cable.
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So how do get a cable that has the data lines shorted or what charger should I buy? Can I short the lines myself, I have a nice welding setup? I can get a $5 charger at walmart that does 500mah and has a cable (not to mention convenience).
If I can get faster charging somehow I wouldn't mind paying a little extra. This 1 amp per port, 2 port charger might be worth the trouble: http://www.gazaro.com/platinum-series-dual-port-wall-and-vehicle-charger-31106001bb
Finally I found a 2 amp incase single port charger at Best Buy for $40 but if our phone wont use the 2amps I don't want to waste the money as this one would not include the cable. http://www.jr.com/incase/pe/ICE_EC20035/
edit: found just the car charger 2 amp for $22 shipped: http://www.amazon.com/Incase-2-amp-Charger-iPad-iPhone/dp/B003IWJNJG
or ebay $7 shipped small 2amp: http://cgi.ebay.com/Apple-iPad-Mini...Accessories&hash=item45fa88cb21#ht_2044wt_952
What's everyone's opinions on the matter?
It looks like I just need to short the middle two pins D+ and D- but what is the best way to do this? On the cable itself or the car charger?
Also will I benefit from the 2 amp charger over the 1 amp?
edit: did some more reading motorola car chargers seem to be wired properly out of the box: http://www.amazon.com/gp/product/B0...eless&tag=5336653508-20&qid=1280759739&sr=8-5
wakestrong said:
It looks like I just need to short the middle two pins D+ and D- but what is the best way to do this? On the cable itself or the car charger?
Also will I benefit from the 2 amp charger over the 1 amp?
edit: did some more reading motorola car chargers seem to be wired properly out of the box: http://www.amazon.com/gp/product/B0...eless&tag=5336653508-20&qid=1280759739&sr=8-5
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I've been using that exact Motorola car charger on my Thunderbolt with great success. It charges extremely fast.
DontCome2MyHouse said:
I've been using that exact Motorola car charger on my Thunderbolt with great success. It charges extremely fast.
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I might buy it just because it is so cheap. I'm in the market for a car charger and was going to buy the seidio one that claims 1000mA, but since this is so cheap and boats 950mA, I think I'll go ahead and grab it.
What does everyone else think?
I was lucky enough to snag the actual Verizon one for $15. They were running 25% off and my employer bonus kicked in for another 15%.
I got a free charger from Verizon when I bought my droid and it works fine with this phone.
So far the Motorola fast charger from Amazon has worked flawlessly!
Sent from my rooted BAMF Thunderbolt!

Car charger that charges at wall charger speeds?

Any car chargers that anyone could point me to that charges as fast as a wall charger?
As it is right now, unless I have my screen off and no apps running it drains faster than the charger can put juice into it...
I'm just using an el-cheap-o aftermarket car charger.
Thanks!
JWhipple said:
Any car chargers that anyone could point me to that charges as fast as a wall charger?
As it is right now, unless I have my screen off and no apps running it drains faster than the charger can put juice into it...
I'm just using an el-cheap-o aftermarket car charger.
Thanks!
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Click to collapse
What I use is a cig to usb plug (cost me 10 bucks at walmart). Then I bring the cord from home that came with my phone and plug that into the USB to cig thingy. Works like a charm, I haven't noticed it charging slower than when at home.
JWhipple said:
Any car chargers that anyone could point me to that charges as fast as a wall charger?
As it is right now, unless I have my screen off and no apps running it drains faster than the charger can put juice into it...
I'm just using an el-cheap-o aftermarket car charger.
Thanks!
Click to expand...
Click to collapse
http://www.amazon.com/Motorola-Vehi...Q9CA/ref=sr_1_1?ie=UTF8&qid=1331233635&sr=8-1
i bought one from t-mobile... its about $29 but its worth the price. I get charge speeds btw 850ma and 950ma when on idle
i have the oem cig to usb charger from Samsung i purchased it at best buy with a gift card lol, when i first got my galaxy tablet.
Just get any standard microusb charger rated at 1a (or 1000mAh ). I'm betting your elcheapo is .5a (500mAh).
Sent from my SGH-T989 using xda premium
I finally got around to ordering that Motorola charger on Amazon - works just how I wanted it to - thanks so much!
our device requires an official samsung charger to charge at full ac speed. there was an article on the xda front page last week about how to mod your charger to be recognized as official.
Sent from my Galaxy S II
jordanishere said:
our device requires an official samsung charger to charge at full ac speed. there was an article on the xda front page last week about how to mod your charger to be recognized as official.
Sent from my Galaxy S II
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All I know is that now I can run my GPS with the screen on and still move UP in battery - before it would drain faster than the car charger would charge, so, I'm happy with what I have now.
Actually the problem is that some of the car chargers are not at 1amp output but less .75 or .85. Thats why your not really seeing an increase. The stock charger is at 1amp. I know AllGamer likes to use the Blackberry ones (which i believe are 1.5amps) Correct me if im wrong AllGamer.
So just look for 1 amp car chargers the cable doesnt matter itll hold whatever you attach it to.
So, no matter wht brand charger you have as long as you connect the two middle pins you will get full charge as long as the charger can put out 1000ma?
I really need a good charger for the car, right now i use a blackberry charger at work an it charges pretty fast. But i need to know how do i find the currect charge rate of a charger. Is there an app for that?
Get tmobiles car charger. Its faster than any others I've tried.
Sent from my SGH-T989 using Tapatalk 2 Beta-4
Can it be had on the cheap
Sent from my SGH-T989 using xda premium
Here it is ... cheap! $3.49 you dont get cheaper than that! =)
Charger
As I remember those chargers needed the center pins shorted to be recognized as AC.
Sent from my SGH-T989 using xda premium
Wareazy said:
Here it is ... cheap! $3.49 you dont get cheaper than that! =)
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This charger doesn't keep up. I have one. It will still drain faster than it charges if you're running a GPS app with the screen on.
Does anyone have an experience with this charger from MONOPRICE
http://www.monoprice.com/products/p..._id=1082603&p_id=8858&seq=1&format=4#feedback
I need a great car charger and really dont want to spend to much money on it. Furthermore, if I am getting a 1+amp charger, as long as i am using the stock samsung charging cable then it shouldnt matter if the charger itself has D- and D+ shorted right?
Im assuming this is something standard on all usb CHARGING cables as appose to data cables.?
Dougshell said:
Does anyone have an experience with this charger from MONOPRICE
http://www.monoprice.com/products/p..._id=1082603&p_id=8858&seq=1&format=4#feedback
I need a great car charger and really dont want to spend to much money on it. Furthermore, if I am getting a 1+amp charger, as long as i am using the stock samsung charging cable then it shouldnt matter if the charger itself has D- and D+ shorted right?
Im assuming this is something standard on all usb CHARGING cables as appose to data cables.?
Click to expand...
Click to collapse
You want a good reliable charger at eBay pricing..... spend the money 1 time and be done with it. You could've already gotten the T-Mobile one and been done with it.
Sent from my SGH-T989 using Tapatalk 2 Beta-5
For those of you buying the USB 12V Cigarette adapters read this.
Basically if you use a data sync cord with one of those adapters, unless it shorts the 2 data pins together internally (probably not) the phone is going to think it's plugged into a computer and only charge at 500ma (max output for a computer USB port). The write up above explains to short the 2 data cables together (this is done internally with the main AC charger head) back towards the phone so it will charge at 1amp instead of 500ma.
You can buy this cable and just modify it as described. I bought this USB adapter so I could charge 2 things at once.
Let me get this clear.
All i need to look for when it is charging is AC mode. As long as it says that, it doesnt matter what i have or have not done to the cables, AC mode is AC mode.
The charger i am looking at getting is 2.1 amp (because it has a spare usb port...so 1amp per line) and when i plug it in and it says AC MODE then its good to go right.
I just bought a TMOBILE offical charger that shows AC MODE, so when it MONOPRICE charger arrives i can compare. If it doesnt work its another 5 bucks, if it does i can take the tmo one back.
But again i am just wondering are there any caveats to AC MODE, or is it that once AC mode shows that is all that matters.

[Q] Car charger keeps disconnecting/reconnecting when i try to charge s3?!

i have one of those bullet usb car chargers and i recently tried it out with my s3 at 15% battery life and it keeps comming up with the lower battery warning while i'm connected to the car charger and the status bar shows one moment it's charging, one moment it's not! I opened up this charger and the data lines are by default shorted together. The charger is rated at 1aH max. Any ideas?? I've attached pics of the insides of the charger.
Suggestions are welcome. I've just been using my s3 wall charger off ab inveter since switching to android and it's getting pretty annoying.
Does the charger work with other devices?
psykhotic said:
Does the charger work with other devices?
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Click to collapse
works on a tom tom gps and an iphone 4s (of course only at 500mah because the data lines aren't at the correct voltage for idevices).
salils said:
works on a tom tom gps and an iphone 4s (of course only at 500mah because the data lines aren't at the correct voltage for idevices).
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Click to collapse
USB port bad on your S3 possibly? My s2, i remember, when you pressed it down it disconnected
Try a different charger.
Not all chargers agree with all phones.
If it's not out of the question just get a new car charger made to work with the t999.
Sent from my SGH-T999 using xda premium
Karakoram2 said:
Try a different charger.
Sent from my SGH-T999 using xda premium
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Click to collapse
I've been using the wall charger that came with the s3 and it has yet to sprout a brain and fix the issue in question.
elesbb said:
USB port bad on your S3 possibly? My s2, i remember, when you pressed it down it disconnected
Click to expand...
Click to collapse
No problems charging on other chargers or charging My s3 with this car charger when the car is off with the car battery left on. When the car engine starts, the voltage of the cigarette port drops from around 14.5v to ~12v
It's a 12v power source.... Can you try another car charger?? What model is it?
psykhotic said:
It's a 12v power source.... Can you try another car charger?? What model is it?
Click to expand...
Click to collapse
When a car isn't running though it's around 14v...this is when my S3 has no problems charging on this charger. I have some usb car chargers (idevice chargers) that don't have the data lines shorted and these work fine with the S3 apart from them not charging at 1aH.

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