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why? why did motorola use a proprietary charging cable? it would of been so nice to have a micro usb cable to charge the xoom. im very worried one day that needle proprietary cable going to break and it wont charge my xoom anymore.
it seems like motorola is a HUGE fan or proprietary cables, especially the v60 series flip phones.
fondoo said:
why? why did motorola use a proprietary charging cable? it would of been so nice to have a micro usb cable to charge the xoom. im very worried one day that needle proprietary cable going to break and it wont charge my xoom anymore.
it seems like motorola is a HUGE fan or proprietary cables, especially the v60 series flip phones.
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All the latest tablets have proprietary cables...
fondoo said:
why? why did motorola use a proprietary charging cable? it would of been so nice to have a micro usb cable to charge the xoom. im very worried one day that needle proprietary cable going to break and it wont charge my xoom anymore.
it seems like motorola is a HUGE fan or proprietary cables, especially the v60 series flip phones.
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Simple, many recent tablets use proprietary cables to allow higher current and faster charge times.
The average usb cable hooked up to your pc provides about 500mA
The proprietary cable for a modern tablet like the XOOM can deliver around
1.5A
With a micro USB cable it would take forever to charge the XOOM. Then people would be complaining about why the XOOM takes so incredibly long to charge, and bashing motorola for the problem. Instead Motorola chose to do it the intelligent way, by separating the charge function to a proprietary cable to allow very fast charging, and including the usb cable for data transfer.
When I see a proprietary cable I don't think - crap why do they do it this way. Instead I think wow great, that means this thing was designed for fast charges.
Digital Man said:
Simple, many recent tablets use proprietary cables to allow higher current and faster charge times.
The average usb cable hooked up to your pc provides about 500mA
The proprietary cable for a modern tablet like the XOOM can deliver around
1.5A
With a micro USB cable it would take forever to charge the XOOM. Then people would be complaining about why the XOOM takes so incredibly long to charge, and bashing motorola for the problem. Instead Motorola chose to do it the intelligent way, by separating the charge function to a proprietary cable to allow very fast charging, and including the usb cable for data transfer.
When I see a proprietary cable I don't think - crap why do they do it this way. Instead I think wow great, that means this thing was designed for fast charges.
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THANK YOU lol finally someone that understands.....
plus, the input voltage in to the tab is 12v, hard to get 12v from a 5v USB supply...
For a bit more info, I too wondered about USB charging. The limit seems to be when the Xoom is running, the current drain can be upwards of 400 mA so I could see a situation where a USB charger at 500 mA would overload if you did too much on the Xoom during charging. That would be good enough reason to avoid that design mess. "Do not use during charging" would not be sufficent protection. The Moto Mains Charger manages 1500 mA for a couple of hours which is wonderful. Now if only I could charge my Nexus S that quickly
xtkxhom3r said:
THANK YOU lol finally someone that understands.....
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right? about time
I am really glad that trickle charging is not possible with the Xoom, saves a lot of problems...I just wish they had used a different connector for the power. Something a bit more durable and commonly included in third party multichargers would have been nice...but one can't have everything.
I still support the seperate power cable choice for all kinds of reasons.
Sent from my GT-I9000 using XDA Premium App
Just amazes me that folks will complain about anything and everything. Good grief, it charges in no time and runs more than a day when it does. What more can you expect?
I like the idea of a separate charger, but the only thing I take issue with is the design of the charger it self. Luckily, I just set mine on the dock before bed. The dock doesn't use that flimsy pin, it uses the two gold plates at the bottom to charge.
Kcarpenter said:
I like the idea of a separate charger, but the only thing I take issue with is the design of the charger it self. Luckily, I just set mine on the dock before bed. The dock doesn't use that flimsy pin, it uses the two gold plates at the bottom to charge.
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going to have to look into that dock cause i'm not to fond of the charger that it has. so the avg. use time is about a day, are you guys mod or heavy users(as you can tell i dont have mine yet ordered and waiting for it to show up)trying to get as much real world use info as i can
i love the proprietary cable. It is SOOO much faster. My Galaxy tab with a 4000 mAH battery took almost 4 hours to charge and i was lucky to get two days usage out of it (standby time and normal usage combined). My Xoom (no idea on mAH size) charges in 2 hours and i get 90 hours usage out of it (mainly standby but still a lot of screen on time, wiht a much larger and brighter screen to power). LOVE it.
Yeah I wouldn't worry about the Cable its seems durable, only thing I AM worried about was how you plug the wires all on the side of the device, I feel like there's abit of give on the wires when holding it sideways, I wish it was more like the iPad.
You know the first time I saw that the tablets used a seperate charging cable I was like, "why?" but then I stopped and think, there's no why a USB (let alone a micro-USB) can charge those suckers, so I'm personally glade that tablet makers did what they did and make it seperate.
I just wish they chose a 30-pin connector instead of this tiny one. The slightest mistake while it's charging (like say you trip over the cord), and there goes your xoom for repair/replacement.
Lets not rule out USB charging. Yes, I love going from 5% to 100% in about an hour. But I also have USB plugged in for hours on end when doing my thang. . That being said, we do not know for certain that USB charge is a hardware limitation. Yes, USB puts out 500mV. But I can tell the kernel to suck in whatever. If the hardware is capable, its doable.
I still think the option should have been given to us. Cuz many if not all of us have micro USB around. I for one only take a single micro USB in my pocket for my phone. So its would have Been nice to be able to charge both device with one charger. But I mean scull charge usually carry me all day. So I don't see it as a major problem right now.
Sent from my Xoom using XDA Premium App
bigrushdog said:
Lets not rule out USB charging. Yes, I love going from 5% to 100% in about an hour. But I also have USB plugged in for hours on end when doing my thang. . That being said, we do not know for certain that USB charge is a hardware limitation. Yes, USB puts out 500mV. But I can tell the kernel to suck in whatever. If the hardware is capable, its doable.
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e
Its actually 500mA not 500mV. Usb provides 5 volts at 500ma for usb 2.0 and that will be picked up to 900ma in usb 3.0. Even with this in mind it isn't the biggest problem with stoppinh usb charging in the xoom. The issue I believe is in the fact that the current charger is 12 volts and 1.5 amps. That's more than twice the volts at tripl the amperes.
Even beyond the amperage issue charging a battery that is set up to input from a 12 volt source with a 5 volts supply, even if it was possible with existing xoom hardware it would take forever!
I wish there was a way to have both options available for charging. Use the USB if you have no access to a AC adapter, albeit, a slower charge.
It seems that there's a false dichotomy here; the options aren't only trickle charge by usb and wall adapter with the proprietary connection. What about a wall charge via the usb port? I don't see why the usb port couldn't be used for the charge. I can trickle charge my n1 or I can plug it into an outlet, which charges the phone much faster. I'm sure the xoom could have been designed to suck in more power when conected to an outlet.
The only plus with the proprietary port is that we can charge and have the xoom connected to a computer or peripheral at the same time.
i know this has probably been asked 28934832 times, and i just spent an hour reading through the phandroid inc forums about these, but here's my question...
so i had an eris before this with the stock HTC mini usb car charger. it would charge as AC, not USB. so when i got the INC, i bought a little adapter from radio shack. on my INC, it would charge as USB...which i guess the adapter messed with the current somehow, which sucks bc it took forever to charge.
then i found my OLD aftermarket ebay cheapo 2 dollar retractable micro USB car charger that i used with my LG Env Touch. i plugged it in, and wa-la! it was AC! i was like, holy damn, that's awesome. thing is, it seems to still charge slow as hell for AC, almost as slow as USB, maybe a little quicker, but slower than charging from my wall.
so my question is, can you still show AC and not charge as fast as the wall outlet would?
Ive been told that cars electric systems can send spikes of current through the charger that could fry the battery. I had a LG Ally that i would charge in the car but it was more like a trickle charge where the wall would charge it fast. When i bought my Dinc, i didnt buy a car charger. Not sure if the response helps any.
Sent from my Hybrid using XDA Premium App
so i did some testing and came up with this:
on the wall charging in the house, going up a percent took about 53 seconds
in my truck using the charger that shows A/C, it took about 1min33sec
in my truck using an HTC car charger with a mini-to-micro usb adapter (which shows as USB in the menu), it took 3 minutes 22 seconds just to go up 1 percent
so no matter what, it's slower than inside...hmm
Thats true,and if could guess, i would guess its the difference between 12 volts vs. 120 volts.
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Actually, I think the count is 28934841...
Do the chargers you use in your vehicles indicate their output? A higher value means, on average, quicker recharging. I've seen chargers as low as 250 mA, many at 500 mA (half an amp), a few at 700 mA, quite a few at 1A, and a rare one that puts out 2A (meant for iPads).
Personally, I need one that puts out at least 1A because then I can charge my phone up while I'm using navigation. Anything less and my phone slowly discharges completely (and gets REALLY hot in the meantime).
This is the one I use:
https://store.griffintechnology.com/powerjolt-dual-universal-micro
damn, 20 bucks for a charger....ugh.
the charger i use doesn't indicate ANYWHERE on it what it is, which sucks. my stock HTC one says it's the 1a, but that stupid usb adapter must cut that in half and make it charg slow, which sucks. i need to find a 1a guy somewhere
hmm...i use a car lighter adapter thing that i plug in that has 3 slots for stuff..so like i can use my GPS adapter, a charger, and something else at the same time. it's like an adapter extender. it also has a USB port in it..i wonder if that USB port will put out 1a like the one you showed above..? i didn't even think to try that
I got mine from Wal-Mart for $12.88 plus tax.
There are other 1A chargers out there. Just try a few and return the ones that don't work well enough. But first, check into the one you have...
Sent from my CM7 ADR6300 using XDA App
I usually power off my phone completely and charge it if I'm on the go... Ridiculously fast charging that way
Ive noticed the stock wall charger delivered with the Nexus 4 is rated at 1.2A, 5.0V. My old phone had a micro usb charger at 0.8A, 5.0V. I imagine the N4 will charge on the lower rated charger, but would take longer. Isnt the standard usb rated at 0.5A? My desktop PC has a new Asus board that has the Charge+ 3X Faster Charging, which I would guess means the usb can pump out power at 1.5A. Looking around for a car charger and additional wall charger, I imagine the N4 would be fine with a higher and lower rated charger? Or should I stick with 1.2A or less? Ive seen car chargers at 1.0A, 2.1A, and 3.0A.
the n4 will only take the current that it needs. a higher Amps- rated charger won't hurt it.
i use a 2.5A portapow quad output charger, the extra power of which enables the charging of multiple devices simultaneously.
I bought this charger for s2 when I had it.. and sold the phone immediately. However I still have this charger. Now what I want to do is, keep one charger (stock) at home and the other (Nokia one...which is also Original) at my workplace. I want to know, is it compatible? As the manual say, u shouldn't use 3rd party chargers. So I want to know your expert opinions "before" start using it on N4.
Thank you
I use my old blackberry + LG car charger
^ You think this would go fine with my N4?
The Output/Input is all same.. only 160 mA is diffrent from the Stock charger. So I don't really know.
filthykid said:
^ You think this would go fine with my N4?
The Output/Input is all same.. only 160 mA is diffrent from the Stock charger. So I don't really know.
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I charge mine from an HTC wall to usb plug, then to a thermaltake usb extender, then to a random usb to micro cable I found so it can reach to my bed so I can listen to music in bed after I fap.
lol..
Hey all,
I've been using my N10 for a week now and am wondering why and if it's normal for the tablet to require 8+ hours to recharge?
I'm plugging it into the wall using a generic USB cable and non-Samsung power block. Should that matter at all?
Signed 'confused...'
Yes, the charger matters. The stock wall charger is at 2Amps, while a normal USB connection is at 0.5Amps, for example. All devices will charge more slowly on lower amperages, but since the battery of the Nexus 10 is so huge (9000mAh - about double your average laptop), charging it from 0 to 100 will be dreadfully slow, if you're not using a proper charger.
1. Are there other wall chargers with higher Amp output that are safe to use w/ the N10?
2. Is there any long term damage to the battery using a higher or lower Amp charger?
Another issue is if the charger is made for an Apple product it doesn't short the data pins so the Nexus doesn't see it as a high amperage power supply and only pulls .5 amps.
Use the OEM Samsung charger or get one of these:
Ventev r2200 AC Travel Charger, Dual 2A USB Port 110-220v With MicroUSB Cable
http://www.amazon.com/dp/B00BSC7FW0/ref=cm_sw_r_an_am_ap_am_us?ie=UTF8
And if you want a it to charge even faster, use a pogo cable.
Original Pogo Cable for Google Nexus 10 (25% Faster Charge) - MAGNECTOR
http://www.amazon.com/dp/B00D7NZLK6/ref=cm_sw_r_an_am_ap_am_us?ie=UTF8
Sent from my SPH-L710 using Tapatalk 2
garberfc said:
1. Are there other wall chargers with higher Amp output that are safe to use w/ the N10?
2. Is there any long term damage to the battery using a higher or lower Amp charger?
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Higher than 2.1 amps? Not commercially that I'm aware of, though you could always jerry rig some contraption to deliver more.
The problem is, however, that the device will not draw the extra power. A device will draw the power it can use, and no more. I haven't tested what the draw is on my Nexus 10, but on my Note 2, it never draws more than 1.8 amps (although that reading may be a little inflated and it really only draws 1.5 amps). I suspect it's more or less the same with the N10 and the stock USB cable and Samsung 2.0 amp charger. So if you went nuts and jerry rigged a 50 amp power supply to the device, it would still only draw 1.5 amps.
Note that the draw can be affected by the USB cable you use. I've seen some USB cables draw less than 500mA where the stock Samsung USB cable draws 1.8 amps.
Bottom line is that you're not going to find a wall charger above 2.1 amps as far as I know, and even if you did, it wouldn't charge the Nexus 10 any faster. The problem is what you identified in your original post -- using some plain vanilla 500mA (0.5 amp) micro USB charger that you've had lying around the house for the past several years and assuming that it should charge just as well as the stock Samsung charger. It won't, as you discovered -- the N10 will only draw about a third of what it's capable of drawing from such a charger.
Be careful buying 2.0/2.1 amp chargers from Amazon or wherever, particularly if they're identified as Samsung chargers. They're almost always counterfeit, and no better than the 500mA chargers I mentioned above.
You might also want to look into the POGO charger cable because it allows the Nexus 10 to draw virtually the full 2.0 amps from the charger rather than 1.5.
JasW said:
Higher than 2.1 amps? Not commercially that I'm aware of, though you could always jerry rig some contraption to deliver more.
The problem is, however, that the device will not draw the extra power. A device will draw the power it can use, and no more. I haven't tested what the draw is on my Nexus 10, but on my Note 2, it never draws more than 1.8 amps (although that reading may be a little inflated and it really only draws 1.5 amps). I suspect it's more or less the same with the N10 and the stock USB cable and Samsung 2.0 amp charger. So if you went nuts and jerry rigged a 50 amp power supply to the device, it would still only draw 1.5 amps.
Note that the draw can be affected by the USB cable you use. I've seen some USB cables draw less than 500mA where the stock Samsung USB cable draws 1.8 amps.
Bottom line is that you're not going to find a wall charger above 2.1 amps as far as I know, and even if you did, it wouldn't charge the Nexus 10 any faster. The problem is what you identified in your original post -- using some plain vanilla 500mA (0.5 amp) micro USB charger that you've had lying around the house for the past several years and assuming that it should charge just as well as the stock Samsung charger. It won't, as you discovered -- the N10 will only draw about a third of what it's capable of drawing from such a charger.
Be careful buying 2.0/2.1 amp chargers from Amazon or wherever, particularly if they're identified as Samsung chargers. They're almost always counterfeit, and no better than the 500mA chargers I mentioned above.
You might also want to look into the POGO charger cable because it allows the Nexus 10 to draw virtually the full 2.0 amps from the charger rather than 1.5.
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Listen to this guy.
@JasW - Wow, thanks for the information / education. It makes a LOT more sense now.
Thanks again, F
@Gearhead_ENG - Thanks for the links! I'm going to go home and scrounge through all my old chargers and see if I have more 2Amp chargers. If not, I'll be following the links again to purchase...
So we just upgraded to Note 3 from our galaxy 3 (wife and I)...
I noticed the charger is a 2 amp charger compared to the SGS 3's 1 amp.
I started reading some threads here and found out the USB 3.0 cable will not charge the phone faster unless it's plugged into the computer.
Apparently the PCM also limits the phone to charging at 900ma. (not verified)
so I'm curious now.... at what amps does this phone charge? I'm trying to get a spare charger to keep in the car, and also trying to get a usb car charger if I can benefit from the 2.1 amp one instead of the 1 amp one that's in there now....
Can anyone tell me if I should get a 2.1amp charger or stick with 1 amp chargers as the spares if it'll still charge at 900ma?
I'm using USB 2.0 cables btw. (unless I can charge faster with the USB 3.0 when plugged to a car charger or the wall, which I apparently won't from my research here)
While I await for responses, I will plug the charger into my voltage/amp reader and we'll see how much power is being drawn, which might give an idea as to how many ma it's charging at.
For whoever that wants to know this information, these are my findings from my meter that is able to measure how much power is being drawn (kill a watt P3)
with the stock charger and USB 2.0 cable (3.0 made no difference) the phone will charge at 900ma with the screen on. If the phone is shut off, or screen is off, it goes to 1500ma. Very steady at those.
with the SGS3 charger that I had, it's a constant 900ma whether screen is on or off... (1.0 amp charger)
now I guess I will have to see if this is the case with any 2.1 amp charger, or if it's specific to samsung's charger with snapdragon's quick charge feature. I believe only certain chargers allow use of this.
I don't know, I'm getting 1800mA by using stock wall charger with USB3 cable and 450 with USB2 cable. I know GS3 would charge at faster rate when using original Samsung wall charger and cable, which had data lines shorted, not sure if it's the same with Note3.
I don't remember for sure, but I think charging rate from computer was pretty much the same 450mA regardless of USB3 or USB2 port or cable. I remember this because I was surprised they didn't take advantage of higher power ratings with USB3, but maybe it was just my particular setup. I used application that shows charging rate, so all is with phone on, but it makes perfect sense, about 2 hours from 0 to 100% charge, if you allow some extra time for trickle charge at the end, losses and usage.
pete4k said:
I don't know, I'm getting 1800mA by using stock wall charger with USB3 cable and 450 with USB2 cable. I know GS3 would charge at faster rate when using original Samsung wall charger and cable, which had data lines shorted, not sure if it's the same with Note3.
I don't remember for sure, but I think charging rate from computer was pretty much the same 450mA regardless of USB3 or USB2 port or cable. I remember this because I was surprised they didn't take advantage of higher power ratings with USB3, but maybe it was just my particular setup. I used application that shows charging rate, so all is with phone on, but it makes perfect sense, about 2 hours from 0 to 100% charge, if you allow some extra time for trickle charge at the end, losses and usage.
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and how did you measure this 1800mA?
razorseal said:
and how did you measure this 1800mA?
program is called galaxy charging current, you can get it in the play store.
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You can't compare that app to a meter that shows you the actual current being drawn
Sent from my SAMSUNG-SM-N900A using Tapatalk
why not? How do you think your meter is working? Phone has similar IC. How did you come up with your numbers first of all? I thought you plug Kill a watt into outlet and it shows what the charger is using at 110v and at about 10 watts(or is it 220-240v for your location), your unit maybe at the limit of accuracy, since the amperage would be somewhere around 100mA, where your device is designed more for larger power consumption like fridge or TV running 300-1000watts and few amps. Is your unit somehow capable of measuring what the charger is outputting and if so, how?
BTW you can't get more than 900mA from PC even over USB3, thats the max limit.
I checked again: galaxy S3 wall charger is giving me 600mA, Note3 charger with USB2 cable gives me 1200mA and Note 3 charger with USB3 cable pumps out 1800mA, computer USB gives 450mA regardless of computer port, but there is something wrong with the USB3 cable that I got, is not connecting properly and I have to wiggle it to connect so maybe bad cable is the reason I don't get higher charge rate from PC USB3.