I purchased the Mediabridge high output USB car charger from Amazon and shorted the 2 middle pins for AC charging. Prior to the mod it was charging at like 405mA, after the mod I'm at about 907mA. Does that sound about right? For some reason I thought it would be a little higher. Those of you that have done this mod, are you getting higher than 907mA?
Bronk93 said:
I purchased the Mediabridge high output USB car charger from Amazon and shorted the 2 middle pins for AC charging. Prior to the mod it was charging at like 405mA, after the mod I'm at about 907mA. Does that sound about right? For some reason I thought it would be a little higher. Those of you that have done this mod, are you getting higher than 907mA?
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According to the original hardware mod they were getting around 800 mA so you have 907 is actually better not to mention in all depends of the charger etc
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Cool thanks for the info. Tested it out his morning and in a 30 minute commute to class the battery went from 44% to 80% so it seems to be working quite well.
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The max I've seen on any charger is around 905mAh, so yeah, that sounds about right. I think there must be a current limiter internally, as I've used a 2mAh charger and it still only charges at 905-ish.
Related
Hi
I'm having a problem with charging my HTC devices on my Honda Fireblade.
My motorcycle dealer added a cigaretlighter so I can charge the HTC while driving and using it as GPS.
The problem is that the Sensation (and even my Desire HD or HD2) won't charge although the indicator light on the charger is on. So I've tested the charger with other equiment and it works.
Does anyone knows what can be the problem? The battery of the Honda is 12V
thx for any advise!
What is the charger output?
It should have 5V and 1A or 2A. If voltage lower, it will not charge..
Sent from my HTC Sensation Z710e using XDA App
naimmkassim said:
What is the charger output?
It should have 5V and 1A or 2A. If voltage lower, it will not charge..
Sent from my HTC Sensation Z710e using XDA App
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I use this charger also in the car and there it works.
I bought this charger when I was on a trip and it's original for nokia
He's right, your charger probably doesn't have enough output. I noticed that certain house chargers I already had were charging the phone extremely slow and others charged the phone quickly. That's when I noticed that the ones that charged the phone quickly were 5v and had at least 1A. The ones that were less were too low of an output to charge the phone properly. You're more than likely experiencing the same thing. I'm willing to bet if you check what the output is on the charger you're using you'll probably see it either isn't the right voltage or the amps are too low...or both.
mysterioustko said:
He's right, your charger probably doesn't have enough output. I noticed that certain house chargers I already had were charging the phone extremely slow and others charged the phone quickly. That's when I noticed that the ones that charged the phone quickly were 5v and had at least 1A. The ones that were less were too low of an output to charge the phone properly. You're more than likely experiencing the same thing. I'm willing to bet if you check what the output is on the charger you're using you'll probably see it either isn't the right voltage or the amps are too low...or both.
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All right, I'll check it first....it's in the car now
The nokia charger is
input 12 V
output 5V - 550mA
So you guys are right....it still doesn't explain to me why the charger works in car and not on motorcycle. Maybe because the battery output in car is higher A?
I'm not into electrical stuff :-(
So, if I order for example this one....it could work on my motorbike?
http://www.netimes.com/shop/usb-car...ung-galaxy-tab-p1000-p-3018.html?cPath=80_818
tsmetjen said:
The nokia charger is
input 12 V
output 5V - 550mA
So you guys are right....it still doesn't explain to me why the charger works in car and not on motorcycle. Maybe because the battery output in car is higher A?
I'm not into electrical stuff :-(
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Bear in mind I'm just speculating with this but your car's cigarette lighter may be putting out more power than your motorcycle's (especially since it wasn't original). Also though it may have been charging in your car, that doesn't mean it was charging at the rate it should have been (it might have been barely charging). Sort of like what I was saying I had experienced when I used a lower output charger (the really slow charging).
Yeah that looks ok. I'd imagine that you be sufficient.
The charger I have is a Nokia DC-4. Bought from Nokia themselves as lots of shops sell copies. The copies don't seem to have the right electronics in them to power the more expensive (read: power hungry) phones. I have to have a converter on the end to go to micro-usb (also a Nokia part) but it means we can also use it for the wife's Nokia.
I'd make sure you went genuine part, or at least one that someone else says works.
Dave
tsmetjen said:
So, if I order for example this one....it could work on my motorbike?
http://www.netimes.com/shop/usb-car...ung-galaxy-tab-p1000-p-3018.html?cPath=80_818
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Click to collapse
It should be working. But better you try it first, borrow from a friend that have this charger and try it on your motobike. If still not working. My conclusion is that your motobike most probabily produce a low voltage or current than what it were suppose to.
tsmetjen said:
So, if I order for example this one....it could work on my motorbike?
http://www.netimes.com/shop/usb-car...ung-galaxy-tab-p1000-p-3018.html?cPath=80_818
Click to expand...
Click to collapse
I've received the charger. Did a test last night and test....failed. Still not charging.
So :
could it ba the usb cable itself?
can I measure the output current on my bike?
I'm with stupid on these matters, and my mecancic is on holiday
This question has been asked before but no one can answer it odd.
Nexus 7 charger is two amps. Stock s3 charger is one amp.
Can I charge my s3 without damaging it using the other charger. People say it charges faster. Some people say it doesn't matter because the kernel will limit it.
Whats the real deal?
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I am pretty sure it will use only what it needs. Atleast thats what i been taught at radioshack
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There are a lot of variables as to what the maximum charge current will be. I've never seen it go over .8 amp. So if you use a 1 amp, or a 20 amp charger, it will be .8 amp. MAX. Usually less.
Use whatever you have handy that is 5 volts.
I actually use an old 5 volt .6 amp charger for overnight charging. A bit slow, but I don't care.
I have a home grown charger on my motorcycle that can go well over 1 amp, but the phone only has ever gone to about .8 amp. For a long time I had that charger set to 5.5 volts, and the current was up a bit closer to 1 amp. But the heat worried me and I bumped it back down to 5 volts.
Have been charging my s3 on the new iPad charger, and 2amp chargers bought from amazon without any issues.
Sent from a SYNERGIZED GalaxySIII
I'm using a RCA dual usb charger one usb plug is 1 amp and the other is 2.1amp both charge fine but I don't notice the 2.1amp charging any faster. I so kinda point less to use in my eyes
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epagib said:
Have been charging my s3 on the new iPad charger, and 2amp chargers bought from amazon without any issues.
Sent from a SYNERGIZED GalaxySIII
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You realize you're using a 10v charger on a 5v device right? That can toast your battery over time, a short time too depending on if you leave it plugged into it over night, etc..
So I figured a wireless charger will prevent my otterbox from stretching out and all. What ive found to be a pain in the ass compared to all videos ive seen. Every one people just throw the phone on top. Comes on charging. My phone complains for me to center the circle on the screen with the dot in the center of my QI charger.
Anybody else notice this? Or is the droid maxx just a pain in the ass to wireless charge?
I think it's a good idea. This is the reason I bought the Palm Pre
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good idea :good:
Good to imagine that with one wireless charger at home, all you phones and tablets get charged automatically.
Good idea :thumbup:
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I dont like wireless charging too much. Jt wasts energy and isn't much "stylier" than charging it in a dock.
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Its nice but I prefer to charge via wire my s4 stock charger charges at 2 amps a second where as the wireless charger only charges at around .5 amps so instead of taking around 2 hours to charge it would take around 5 hours .
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clapper66 said:
Its nice but I prefer to charge via wire my s4 stock charger charges at 2 amps a second where as the wireless charger only charges at around .5 amps so instead of taking around 2 hours to charge it would take around 5 hours .
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Hi, I think there are a couple of technical specs being quoted.
. . . my s4 stock charger charges at 2 amps a second . . .
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I think you meant the charger rating is 2 amps. Battery has a rating of amp/hr, but not chargers. They are only rated at amps. E.g., if a battery is rated at 60 amp/hr, and it is flat, to fully-charge using a 2 amp charger it will take about 30 hrs (30 * 2 = 60). That's only theoretical because other factors take into play: the condition of the electrolyte, the physical condition of the battery, the performance of the charger, ambient temperature and humidity, etc.
. . . the wireless charger only charges at around .5 amps so instead of taking around 2 hours to charge it would take around 5 hours. . .
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Click to collapse
If charging at 2 amps take 2 hours, then charging at 0.5 amps will take 8 hrs (2.0 / 0.5 * 2 = 8)
In the above examples, I am assuming that the battery and charger Voltage rating is the same.
Just clarifying.
I want a spot in my car where you set your phone and it wirelessly charges while playing your music via bluetooth and doing calls/texts via bluetooth and voice. Set your phone there when you get in the car and it is fully powered, charging, and ties into everything. It needs some mechanism to keep the phone there (some sort of clamp?) and be positioned well for GPS usage.
Wireless charging will be awesome once there is a standard and it starts getting built into things like that.
Good:thumbup:
Sent after :stirthepot:
I'm scared about electromagnetic wawes, 3G and Wi-Fi already hurts, but the idea is good.
thats a good idea
seems to be a good idea so far i like it
bad idea
That's the one thing I wish my phone had. Want this feature very bad.
Not to even mention for the no wear and tear on the Charging Port which can be a weakness.
wireless charging
which devices supports wireless charging
It charges my phone slowly.
Stock charger takes 2.5 hours and wireless chargers takes 3-4 hrs to charge full.
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As much as i think it would be convenient, i still use my phone a lot when is charging, that's something you can't do with a pad
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-totonio- said:
I'm scared about electromagnetic wawes, 3G and Wi-Fi already hurts, but the idea is good.
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Think of it as a transformer with the primary and secondary coils not firmly attached to each other. It's no more dangerous than any AC adapter. Of course, if they decided to make these chargers to work at a distance, there might be some risk. (shades of Tesla!)
-totonio- said:
I'm scared about electromagnetic wawes, 3G and Wi-Fi already hurts, but the idea is good.
Click to expand...
Click to collapse
I totally agree, there should be thorough study on the electromagnetic waves not affecting the memory cards and the volatile storage inside the phone... might result in data loss?
http://www.ebay.com/itm/3-1A-Dual-U...S_Cell_Phone_PDA_Chargers&hash=item565a917530
hello
My stock charger is us for galaxy s4 (samsung regular charger)
and then I found this (link above) with 2.1A
is it matter charging via 2.1A and not 2A? what is the different? it will charge faster/slower?
thanks
In Stock kernel there is current limit 1.9A. So everything above it, will be the same as 1.9A.
In reality, you will find that even 2.1A charger doesn't supply even 1.9A. Chinese charges definitely don't supply current thay claim. And beware of them - you may fry your device by such cheap charger.
Also, it heavily depends on USB cable as well. It has to be very short and very thick.
I have a Mediabridge car adapter that has a 2.1 amp charger on it. When I charge my S4 with it it barely charges faster than the 1 amp charger does. I think it charges at either 1.3 or 1.7 amps, sorry can't remember exactly.
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jev3gs said:
I have a Mediabridge car adapter that has a 2.1 amp charger on it. When I charge my S4 with it it barely charges faster than the 1 amp charger does. I think it charges at either 1.3 or 1.7 amps, sorry can't remember exactly.
Sent from my SAMSUNG-SGH-I337 using xda app-developers app
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How do you measure the exact amperage that it charges at?
Badelhas said:
How do you measure the exact amperage that it charges at?
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I don't have the equipment to measure it exactly. So what I did was charge my phone from 50% for 40 minutes on my stock Samsung wall charger and then recorder the percentage it increased. I then took that number and assumed it was charging at 2 amps and used it as a baseline. Then I did the same test with my car adapter and recorded the results. The I figured out the percentage difference and came up with me estimates. I just don't have the data in front of me anymore but I remembered it being somewhere between 1.3 or 1.7.
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The stock charger is fast at charging this phone. On my s3 it took forever . I would stick with stock
Sent from my SPH-L720 using XDA Premium 4 mobile app
ok thanks
more people?
ok thanks
more people?
Chargers, power supplies, etc, don't "decide" the amps that go to a device - the device "draws" a certain amount. Just because a lamp is plugged into a 20amp circuit in your home doesn't mean 20 amps are going to be shoved through the bulb.
So if, as sorg says, the phone is only going to "ask" for 1.9a, you could plug it into a 5 amp charger and it would make no difference.
darixtorento said:
ok thanks
more people?
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Click to collapse
You already got your answer above.
No, your phone will NEVER charge faster than 1900 until a developer comes along and figures out how to hack the system to allow this. And it would be a potentiallly STUPID idea to charge faster than Samsung has deemed safe.
Go here to find out how to test your charging rate:
http://forum.xda-developers.com/showthread.php?p=46156385#post46156385
I bought a dual usb car charger from eBay that is supposed to output 5v 2A on one socket and 5v 1a on the other, but while leaving it like that in my car it still drains the nexus 5. Tried to only have the nexus 5 connected to the 2A socket aswell but still discharges over time.
What can be the issue here?
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Probably either a bad USB cable(s) or chargers that are not putting out the amperage as advertised. There are a couple posts you can find in the accessories forum that show the effect of low vs high quality USB cables. Summary: there is a big difference.
I've personally been on the hunt for good cables and charges for a while and recently bought a car charger that charges while I listen to music and use Waze while driving. Very happy now, we'll I am, my wallet isn't.
Try current widget while hooked up to the charger. You can test how many amps you are drawing.
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It may be like the post above, drawing USB charge. I think I read somewhere there is a mod to enable fast charge.
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Tried some different cables in the truck now at lunch, the ones I used before got minus even while charging, these were cheap flat cables from China, tested with an Asus one i had laying around and that gave me ~700+ mah. So from -70mah to +700mah is quite the difference just by switching cables.
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